/**
* Core Taxonomy API
*
* @package WordPress
* @subpackage Taxonomy
*/
//
// Taxonomy registration.
//
/**
* Creates the initial taxonomies.
*
* This function fires twice: in wp-settings.php before plugins are loaded (for
* backward compatibility reasons), and again on the {@see 'init'} action. We must
* avoid registering rewrite rules before the {@see 'init'} action.
*
* @since 2.8.0
* @since 5.9.0 Added `'wp_template_part_area'` taxonomy.
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*/
function create_initial_taxonomies() {
global $wp_rewrite;
WP_Taxonomy::reset_default_labels();
if ( ! did_action( 'init' ) ) {
$rewrite = array(
'category' => false,
'post_tag' => false,
'post_format' => false,
);
} else {
/**
* Filters the post formats rewrite base.
*
* @since 3.1.0
*
* @param string $context Context of the rewrite base. Default 'type'.
*/
$post_format_base = apply_filters( 'post_format_rewrite_base', 'type' );
$rewrite = array(
'category' => array(
'hierarchical' => true,
'slug' => get_option( 'category_base' ) ? get_option( 'category_base' ) : 'category',
'with_front' => ! get_option( 'category_base' ) || $wp_rewrite->using_index_permalinks(),
'ep_mask' => EP_CATEGORIES,
),
'post_tag' => array(
'hierarchical' => false,
'slug' => get_option( 'tag_base' ) ? get_option( 'tag_base' ) : 'tag',
'with_front' => ! get_option( 'tag_base' ) || $wp_rewrite->using_index_permalinks(),
'ep_mask' => EP_TAGS,
),
'post_format' => $post_format_base ? array( 'slug' => $post_format_base ) : false,
);
}
register_taxonomy(
'category',
'post',
array(
'hierarchical' => true,
'query_var' => 'category_name',
'rewrite' => $rewrite['category'],
'public' => true,
'show_ui' => true,
'show_admin_column' => true,
'_builtin' => true,
'capabilities' => array(
'manage_terms' => 'manage_categories',
'edit_terms' => 'edit_categories',
'delete_terms' => 'delete_categories',
'assign_terms' => 'assign_categories',
),
'show_in_rest' => true,
'rest_base' => 'categories',
'rest_controller_class' => 'WP_REST_Terms_Controller',
)
);
register_taxonomy(
'post_tag',
'post',
array(
'hierarchical' => false,
'query_var' => 'tag',
'rewrite' => $rewrite['post_tag'],
'public' => true,
'show_ui' => true,
'show_admin_column' => true,
'_builtin' => true,
'capabilities' => array(
'manage_terms' => 'manage_post_tags',
'edit_terms' => 'edit_post_tags',
'delete_terms' => 'delete_post_tags',
'assign_terms' => 'assign_post_tags',
),
'show_in_rest' => true,
'rest_base' => 'tags',
'rest_controller_class' => 'WP_REST_Terms_Controller',
)
);
register_taxonomy(
'nav_menu',
'nav_menu_item',
array(
'public' => false,
'hierarchical' => false,
'labels' => array(
'name' => __( 'Navigation Menus' ),
'singular_name' => __( 'Navigation Menu' ),
),
'query_var' => false,
'rewrite' => false,
'show_ui' => false,
'_builtin' => true,
'show_in_nav_menus' => false,
'capabilities' => array(
'manage_terms' => 'edit_theme_options',
'edit_terms' => 'edit_theme_options',
'delete_terms' => 'edit_theme_options',
'assign_terms' => 'edit_theme_options',
),
'show_in_rest' => true,
'rest_base' => 'menus',
'rest_controller_class' => 'WP_REST_Menus_Controller',
)
);
register_taxonomy(
'link_category',
'link',
array(
'hierarchical' => false,
'labels' => array(
'name' => __( 'Link Categories' ),
'singular_name' => __( 'Link Category' ),
'search_items' => __( 'Search Link Categories' ),
'popular_items' => null,
'all_items' => __( 'All Link Categories' ),
'edit_item' => __( 'Edit Link Category' ),
'update_item' => __( 'Update Link Category' ),
'add_new_item' => __( 'Add Link Category' ),
'new_item_name' => __( 'New Link Category Name' ),
'separate_items_with_commas' => null,
'add_or_remove_items' => null,
'choose_from_most_used' => null,
'back_to_items' => __( '← Go to Link Categories' ),
),
'capabilities' => array(
'manage_terms' => 'manage_links',
'edit_terms' => 'manage_links',
'delete_terms' => 'manage_links',
'assign_terms' => 'manage_links',
),
'query_var' => false,
'rewrite' => false,
'public' => false,
'show_ui' => true,
'_builtin' => true,
)
);
register_taxonomy(
'post_format',
'post',
array(
'public' => true,
'hierarchical' => false,
'labels' => array(
'name' => _x( 'Formats', 'post format' ),
'singular_name' => _x( 'Format', 'post format' ),
),
'query_var' => true,
'rewrite' => $rewrite['post_format'],
'show_ui' => false,
'_builtin' => true,
'show_in_nav_menus' => current_theme_supports( 'post-formats' ),
)
);
register_taxonomy(
'wp_theme',
array( 'wp_template', 'wp_template_part', 'wp_global_styles' ),
array(
'public' => false,
'hierarchical' => false,
'labels' => array(
'name' => __( 'Themes' ),
'singular_name' => __( 'Theme' ),
),
'query_var' => false,
'rewrite' => false,
'show_ui' => false,
'_builtin' => true,
'show_in_nav_menus' => false,
'show_in_rest' => false,
)
);
register_taxonomy(
'wp_template_part_area',
array( 'wp_template_part' ),
array(
'public' => false,
'hierarchical' => false,
'labels' => array(
'name' => __( 'Template Part Areas' ),
'singular_name' => __( 'Template Part Area' ),
),
'query_var' => false,
'rewrite' => false,
'show_ui' => false,
'_builtin' => true,
'show_in_nav_menus' => false,
'show_in_rest' => false,
)
);
register_taxonomy(
'wp_pattern_category',
array( 'wp_block' ),
array(
'public' => false,
'publicly_queryable' => false,
'hierarchical' => false,
'labels' => array(
'name' => _x( 'Pattern Categories', 'taxonomy general name' ),
'singular_name' => _x( 'Pattern Category', 'taxonomy singular name' ),
'add_new_item' => __( 'Add Category' ),
'add_or_remove_items' => __( 'Add or remove pattern categories' ),
'back_to_items' => __( '← Go to Pattern Categories' ),
'choose_from_most_used' => __( 'Choose from the most used pattern categories' ),
'edit_item' => __( 'Edit Pattern Category' ),
'item_link' => __( 'Pattern Category Link' ),
'item_link_description' => __( 'A link to a pattern category.' ),
'items_list' => __( 'Pattern Categories list' ),
'items_list_navigation' => __( 'Pattern Categories list navigation' ),
'new_item_name' => __( 'New Pattern Category Name' ),
'no_terms' => __( 'No pattern categories' ),
'not_found' => __( 'No pattern categories found.' ),
'popular_items' => __( 'Popular Pattern Categories' ),
'search_items' => __( 'Search Pattern Categories' ),
'separate_items_with_commas' => __( 'Separate pattern categories with commas' ),
'update_item' => __( 'Update Pattern Category' ),
'view_item' => __( 'View Pattern Category' ),
),
'query_var' => false,
'rewrite' => false,
'show_ui' => true,
'_builtin' => true,
'show_in_nav_menus' => false,
'show_in_rest' => true,
'show_admin_column' => true,
'show_tagcloud' => false,
)
);
}
/**
* Retrieves a list of registered taxonomy names or objects.
*
* @since 3.0.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param array $args Optional. An array of `key => value` arguments to match against the taxonomy objects.
* Default empty array.
* @param string $output Optional. The type of output to return in the array. Either 'names'
* or 'objects'. Default 'names'.
* @param string $operator Optional. The logical operation to perform. Accepts 'and' or 'or'. 'or' means only
* one element from the array needs to match; 'and' means all elements must match.
* Default 'and'.
* @return string[]|WP_Taxonomy[] An array of taxonomy names or objects.
*/
function get_taxonomies( $args = array(), $output = 'names', $operator = 'and' ) {
global $wp_taxonomies;
$field = ( 'names' === $output ) ? 'name' : false;
return wp_filter_object_list( $wp_taxonomies, $args, $operator, $field );
}
/**
* Returns the names or objects of the taxonomies which are registered for the requested object or object type,
* such as a post object or post type name.
*
* Example:
*
* $taxonomies = get_object_taxonomies( 'post' );
*
* This results in:
*
* Array( 'category', 'post_tag' )
*
* @since 2.3.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param string|string[]|WP_Post $object_type Name of the type of taxonomy object, or an object (row from posts).
* @param string $output Optional. The type of output to return in the array. Accepts either
* 'names' or 'objects'. Default 'names'.
* @return string[]|WP_Taxonomy[] The names or objects of all taxonomies of `$object_type`.
*/
function get_object_taxonomies( $object_type, $output = 'names' ) {
global $wp_taxonomies;
if ( is_object( $object_type ) ) {
if ( 'attachment' === $object_type->post_type ) {
return get_attachment_taxonomies( $object_type, $output );
}
$object_type = $object_type->post_type;
}
$object_type = (array) $object_type;
$taxonomies = array();
foreach ( (array) $wp_taxonomies as $tax_name => $tax_obj ) {
if ( array_intersect( $object_type, (array) $tax_obj->object_type ) ) {
if ( 'names' === $output ) {
$taxonomies[] = $tax_name;
} else {
$taxonomies[ $tax_name ] = $tax_obj;
}
}
}
return $taxonomies;
}
/**
* Retrieves the taxonomy object of $taxonomy.
*
* The get_taxonomy function will first check that the parameter string given
* is a taxonomy object and if it is, it will return it.
*
* @since 2.3.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param string $taxonomy Name of taxonomy object to return.
* @return WP_Taxonomy|false The taxonomy object or false if $taxonomy doesn't exist.
*/
function get_taxonomy( $taxonomy ) {
global $wp_taxonomies;
if ( ! taxonomy_exists( $taxonomy ) ) {
return false;
}
return $wp_taxonomies[ $taxonomy ];
}
/**
* Determines whether the taxonomy name exists.
*
* Formerly is_taxonomy(), introduced in 2.3.0.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 3.0.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param string $taxonomy Name of taxonomy object.
* @return bool Whether the taxonomy exists.
*/
function taxonomy_exists( $taxonomy ) {
global $wp_taxonomies;
return is_string( $taxonomy ) && isset( $wp_taxonomies[ $taxonomy ] );
}
/**
* Determines whether the taxonomy object is hierarchical.
*
* Checks to make sure that the taxonomy is an object first. Then Gets the
* object, and finally returns the hierarchical value in the object.
*
* A false return value might also mean that the taxonomy does not exist.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.3.0
*
* @param string $taxonomy Name of taxonomy object.
* @return bool Whether the taxonomy is hierarchical.
*/
function is_taxonomy_hierarchical( $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) ) {
return false;
}
$taxonomy = get_taxonomy( $taxonomy );
return $taxonomy->hierarchical;
}
/**
* Creates or modifies a taxonomy object.
*
* Note: Do not use before the {@see 'init'} hook.
*
* A simple function for creating or modifying a taxonomy object based on
* the parameters given. If modifying an existing taxonomy object, note
* that the `$object_type` value from the original registration will be
* overwritten.
*
* @since 2.3.0
* @since 4.2.0 Introduced `show_in_quick_edit` argument.
* @since 4.4.0 The `show_ui` argument is now enforced on the term editing screen.
* @since 4.4.0 The `public` argument now controls whether the taxonomy can be queried on the front end.
* @since 4.5.0 Introduced `publicly_queryable` argument.
* @since 4.7.0 Introduced `show_in_rest`, 'rest_base' and 'rest_controller_class'
* arguments to register the taxonomy in REST API.
* @since 5.1.0 Introduced `meta_box_sanitize_cb` argument.
* @since 5.4.0 Added the registered taxonomy object as a return value.
* @since 5.5.0 Introduced `default_term` argument.
* @since 5.9.0 Introduced `rest_namespace` argument.
*
* @global WP_Taxonomy[] $wp_taxonomies Registered taxonomies.
*
* @param string $taxonomy Taxonomy key. Must not exceed 32 characters and may only contain
* lowercase alphanumeric characters, dashes, and underscores. See sanitize_key().
* @param array|string $object_type Object type or array of object types with which the taxonomy should be associated.
* @param array|string $args {
* Optional. Array or query string of arguments for registering a taxonomy.
*
* @type string[] $labels An array of labels for this taxonomy. By default, Tag labels are
* used for non-hierarchical taxonomies, and Category labels are used
* for hierarchical taxonomies. See accepted values in
* get_taxonomy_labels(). Default empty array.
* @type string $description A short descriptive summary of what the taxonomy is for. Default empty.
* @type bool $public Whether a taxonomy is intended for use publicly either via
* the admin interface or by front-end users. The default settings
* of `$publicly_queryable`, `$show_ui`, and `$show_in_nav_menus`
* are inherited from `$public`.
* @type bool $publicly_queryable Whether the taxonomy is publicly queryable.
* If not set, the default is inherited from `$public`
* @type bool $hierarchical Whether the taxonomy is hierarchical. Default false.
* @type bool $show_ui Whether to generate and allow a UI for managing terms in this taxonomy in
* the admin. If not set, the default is inherited from `$public`
* (default true).
* @type bool $show_in_menu Whether to show the taxonomy in the admin menu. If true, the taxonomy is
* shown as a submenu of the object type menu. If false, no menu is shown.
* `$show_ui` must be true. If not set, default is inherited from `$show_ui`
* (default true).
* @type bool $show_in_nav_menus Makes this taxonomy available for selection in navigation menus. If not
* set, the default is inherited from `$public` (default true).
* @type bool $show_in_rest Whether to include the taxonomy in the REST API. Set this to true
* for the taxonomy to be available in the block editor.
* @type string $rest_base To change the base url of REST API route. Default is $taxonomy.
* @type string $rest_namespace To change the namespace URL of REST API route. Default is wp/v2.
* @type string $rest_controller_class REST API Controller class name. Default is 'WP_REST_Terms_Controller'.
* @type bool $show_tagcloud Whether to list the taxonomy in the Tag Cloud Widget controls. If not set,
* the default is inherited from `$show_ui` (default true).
* @type bool $show_in_quick_edit Whether to show the taxonomy in the quick/bulk edit panel. It not set,
* the default is inherited from `$show_ui` (default true).
* @type bool $show_admin_column Whether to display a column for the taxonomy on its post type listing
* screens. Default false.
* @type bool|callable $meta_box_cb Provide a callback function for the meta box display. If not set,
* post_categories_meta_box() is used for hierarchical taxonomies, and
* post_tags_meta_box() is used for non-hierarchical. If false, no meta
* box is shown.
* @type callable $meta_box_sanitize_cb Callback function for sanitizing taxonomy data saved from a meta
* box. If no callback is defined, an appropriate one is determined
* based on the value of `$meta_box_cb`.
* @type string[] $capabilities {
* Array of capabilities for this taxonomy.
*
* @type string $manage_terms Default 'manage_categories'.
* @type string $edit_terms Default 'manage_categories'.
* @type string $delete_terms Default 'manage_categories'.
* @type string $assign_terms Default 'edit_posts'.
* }
* @type bool|array $rewrite {
* Triggers the handling of rewrites for this taxonomy. Default true, using $taxonomy as slug. To prevent
* rewrite, set to false. To specify rewrite rules, an array can be passed with any of these keys:
*
* @type string $slug Customize the permastruct slug. Default `$taxonomy` key.
* @type bool $with_front Should the permastruct be prepended with WP_Rewrite::$front. Default true.
* @type bool $hierarchical Either hierarchical rewrite tag or not. Default false.
* @type int $ep_mask Assign an endpoint mask. Default `EP_NONE`.
* }
* @type string|bool $query_var Sets the query var key for this taxonomy. Default `$taxonomy` key. If
* false, a taxonomy cannot be loaded at `?{query_var}={term_slug}`. If a
* string, the query `?{query_var}={term_slug}` will be valid.
* @type callable $update_count_callback Works much like a hook, in that it will be called when the count is
* updated. Default _update_post_term_count() for taxonomies attached
* to post types, which confirms that the objects are published before
* counting them. Default _update_generic_term_count() for taxonomies
* attached to other object types, such as users.
* @type string|array $default_term {
* Default term to be used for the taxonomy.
*
* @type string $name Name of default term.
* @type string $slug Slug for default term. Default empty.
* @type string $description Description for default term. Default empty.
* }
* @type bool $sort Whether terms in this taxonomy should be sorted in the order they are
* provided to `wp_set_object_terms()`. Default null which equates to false.
* @type array $args Array of arguments to automatically use inside `wp_get_object_terms()`
* for this taxonomy.
* @type bool $_builtin This taxonomy is a "built-in" taxonomy. INTERNAL USE ONLY!
* Default false.
* }
* @return WP_Taxonomy|WP_Error The registered taxonomy object on success, WP_Error object on failure.
*/
function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
global $wp_taxonomies;
if ( ! is_array( $wp_taxonomies ) ) {
$wp_taxonomies = array();
}
$args = wp_parse_args( $args );
if ( empty( $taxonomy ) || strlen( $taxonomy ) > 32 ) {
_doing_it_wrong( __FUNCTION__, __( 'Taxonomy names must be between 1 and 32 characters in length.' ), '4.2.0' );
return new WP_Error( 'taxonomy_length_invalid', __( 'Taxonomy names must be between 1 and 32 characters in length.' ) );
}
$taxonomy_object = new WP_Taxonomy( $taxonomy, $object_type, $args );
$taxonomy_object->add_rewrite_rules();
$wp_taxonomies[ $taxonomy ] = $taxonomy_object;
$taxonomy_object->add_hooks();
// Add default term.
if ( ! empty( $taxonomy_object->default_term ) ) {
$term = term_exists( $taxonomy_object->default_term['name'], $taxonomy );
if ( $term ) {
update_option( 'default_term_' . $taxonomy_object->name, $term['term_id'] );
} else {
$term = wp_insert_term(
$taxonomy_object->default_term['name'],
$taxonomy,
array(
'slug' => sanitize_title( $taxonomy_object->default_term['slug'] ),
'description' => $taxonomy_object->default_term['description'],
)
);
// Update `term_id` in options.
if ( ! is_wp_error( $term ) ) {
update_option( 'default_term_' . $taxonomy_object->name, $term['term_id'] );
}
}
}
/**
* Fires after a taxonomy is registered.
*
* @since 3.3.0
*
* @param string $taxonomy Taxonomy slug.
* @param array|string $object_type Object type or array of object types.
* @param array $args Array of taxonomy registration arguments.
*/
do_action( 'registered_taxonomy', $taxonomy, $object_type, (array) $taxonomy_object );
/**
* Fires after a specific taxonomy is registered.
*
* The dynamic portion of the filter name, `$taxonomy`, refers to the taxonomy key.
*
* Possible hook names include:
*
* - `registered_taxonomy_category`
* - `registered_taxonomy_post_tag`
*
* @since 6.0.0
*
* @param string $taxonomy Taxonomy slug.
* @param array|string $object_type Object type or array of object types.
* @param array $args Array of taxonomy registration arguments.
*/
do_action( "registered_taxonomy_{$taxonomy}", $taxonomy, $object_type, (array) $taxonomy_object );
return $taxonomy_object;
}
/**
* Unregisters a taxonomy.
*
* Can not be used to unregister built-in taxonomies.
*
* @since 4.5.0
*
* @global WP_Taxonomy[] $wp_taxonomies List of taxonomies.
*
* @param string $taxonomy Taxonomy name.
* @return true|WP_Error True on success, WP_Error on failure or if the taxonomy doesn't exist.
*/
function unregister_taxonomy( $taxonomy ) {
global $wp_taxonomies;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
$taxonomy_object = get_taxonomy( $taxonomy );
// Do not allow unregistering internal taxonomies.
if ( $taxonomy_object->_builtin ) {
return new WP_Error( 'invalid_taxonomy', __( 'Unregistering a built-in taxonomy is not allowed.' ) );
}
$taxonomy_object->remove_rewrite_rules();
$taxonomy_object->remove_hooks();
// Remove the taxonomy.
unset( $wp_taxonomies[ $taxonomy ] );
/**
* Fires after a taxonomy is unregistered.
*
* @since 4.5.0
*
* @param string $taxonomy Taxonomy name.
*/
do_action( 'unregistered_taxonomy', $taxonomy );
return true;
}
/**
* Builds an object with all taxonomy labels out of a taxonomy object.
*
* @since 3.0.0
* @since 4.3.0 Added the `no_terms` label.
* @since 4.4.0 Added the `items_list_navigation` and `items_list` labels.
* @since 4.9.0 Added the `most_used` and `back_to_items` labels.
* @since 5.7.0 Added the `filter_by_item` label.
* @since 5.8.0 Added the `item_link` and `item_link_description` labels.
* @since 5.9.0 Added the `name_field_description`, `slug_field_description`,
* `parent_field_description`, and `desc_field_description` labels.
* @since 6.6.0 Added the `template_name` label.
*
* @param WP_Taxonomy $tax Taxonomy object.
* @return object {
* Taxonomy labels object. The first default value is for non-hierarchical taxonomies
* (like tags) and the second one is for hierarchical taxonomies (like categories).
*
* @type string $name General name for the taxonomy, usually plural. The same
* as and overridden by `$tax->label`. Default 'Tags'/'Categories'.
* @type string $singular_name Name for one object of this taxonomy. Default 'Tag'/'Category'.
* @type string $search_items Default 'Search Tags'/'Search Categories'.
* @type string $popular_items This label is only used for non-hierarchical taxonomies.
* Default 'Popular Tags'.
* @type string $all_items Default 'All Tags'/'All Categories'.
* @type string $parent_item This label is only used for hierarchical taxonomies. Default
* 'Parent Category'.
* @type string $parent_item_colon The same as `parent_item`, but with colon `:` in the end.
* @type string $name_field_description Description for the Name field on Edit Tags screen.
* Default 'The name is how it appears on your site'.
* @type string $slug_field_description Description for the Slug field on Edit Tags screen.
* Default 'The “slug” is the URL-friendly version
* of the name. It is usually all lowercase and contains
* only letters, numbers, and hyphens'.
* @type string $parent_field_description Description for the Parent field on Edit Tags screen.
* Default 'Assign a parent term to create a hierarchy.
* The term Jazz, for example, would be the parent
* of Bebop and Big Band'.
* @type string $desc_field_description Description for the Description field on Edit Tags screen.
* Default 'The description is not prominent by default;
* however, some themes may show it'.
* @type string $edit_item Default 'Edit Tag'/'Edit Category'.
* @type string $view_item Default 'View Tag'/'View Category'.
* @type string $update_item Default 'Update Tag'/'Update Category'.
* @type string $add_new_item Default 'Add Tag'/'Add Category'.
* @type string $new_item_name Default 'New Tag Name'/'New Category Name'.
* @type string $template_name Default 'Tag Archives'/'Category Archives'.
* @type string $separate_items_with_commas This label is only used for non-hierarchical taxonomies. Default
* 'Separate tags with commas', used in the meta box.
* @type string $add_or_remove_items This label is only used for non-hierarchical taxonomies. Default
* 'Add or remove tags', used in the meta box when JavaScript
* is disabled.
* @type string $choose_from_most_used This label is only used on non-hierarchical taxonomies. Default
* 'Choose from the most used tags', used in the meta box.
* @type string $not_found Default 'No tags found'/'No categories found', used in
* the meta box and taxonomy list table.
* @type string $no_terms Default 'No tags'/'No categories', used in the posts and media
* list tables.
* @type string $filter_by_item This label is only used for hierarchical taxonomies. Default
* 'Filter by category', used in the posts list table.
* @type string $items_list_navigation Label for the table pagination hidden heading.
* @type string $items_list Label for the table hidden heading.
* @type string $most_used Title for the Most Used tab. Default 'Most Used'.
* @type string $back_to_items Label displayed after a term has been updated.
* @type string $item_link Used in the block editor. Title for a navigation link block variation.
* Default 'Tag Link'/'Category Link'.
* @type string $item_link_description Used in the block editor. Description for a navigation link block
* variation. Default 'A link to a tag'/'A link to a category'.
* }
*/
function get_taxonomy_labels( $tax ) {
$tax->labels = (array) $tax->labels;
if ( isset( $tax->helps ) && empty( $tax->labels['separate_items_with_commas'] ) ) {
$tax->labels['separate_items_with_commas'] = $tax->helps;
}
if ( isset( $tax->no_tagcloud ) && empty( $tax->labels['not_found'] ) ) {
$tax->labels['not_found'] = $tax->no_tagcloud;
}
$nohier_vs_hier_defaults = WP_Taxonomy::get_default_labels();
$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
$labels = _get_custom_object_labels( $tax, $nohier_vs_hier_defaults );
if ( ! isset( $tax->labels->template_name ) && isset( $labels->singular_name ) ) {
/* translators: %s: Taxonomy name. */
$labels->template_name = sprintf( _x( '%s Archives', 'taxonomy template name' ), $labels->singular_name );
}
$taxonomy = $tax->name;
$default_labels = clone $labels;
/**
* Filters the labels of a specific taxonomy.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `taxonomy_labels_category`
* - `taxonomy_labels_post_tag`
*
* @since 4.4.0
*
* @see get_taxonomy_labels() for the full list of taxonomy labels.
*
* @param object $labels Object with labels for the taxonomy as member variables.
*/
$labels = apply_filters( "taxonomy_labels_{$taxonomy}", $labels );
// Ensure that the filtered labels contain all required default values.
$labels = (object) array_merge( (array) $default_labels, (array) $labels );
return $labels;
}
/**
* Adds an already registered taxonomy to an object type.
*
* @since 3.0.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param string $taxonomy Name of taxonomy object.
* @param string $object_type Name of the object type.
* @return bool True if successful, false if not.
*/
function register_taxonomy_for_object_type( $taxonomy, $object_type ) {
global $wp_taxonomies;
if ( ! isset( $wp_taxonomies[ $taxonomy ] ) ) {
return false;
}
if ( ! get_post_type_object( $object_type ) ) {
return false;
}
if ( ! in_array( $object_type, $wp_taxonomies[ $taxonomy ]->object_type, true ) ) {
$wp_taxonomies[ $taxonomy ]->object_type[] = $object_type;
}
// Filter out empties.
$wp_taxonomies[ $taxonomy ]->object_type = array_filter( $wp_taxonomies[ $taxonomy ]->object_type );
/**
* Fires after a taxonomy is registered for an object type.
*
* @since 5.1.0
*
* @param string $taxonomy Taxonomy name.
* @param string $object_type Name of the object type.
*/
do_action( 'registered_taxonomy_for_object_type', $taxonomy, $object_type );
return true;
}
/**
* Removes an already registered taxonomy from an object type.
*
* @since 3.7.0
*
* @global WP_Taxonomy[] $wp_taxonomies The registered taxonomies.
*
* @param string $taxonomy Name of taxonomy object.
* @param string $object_type Name of the object type.
* @return bool True if successful, false if not.
*/
function unregister_taxonomy_for_object_type( $taxonomy, $object_type ) {
global $wp_taxonomies;
if ( ! isset( $wp_taxonomies[ $taxonomy ] ) ) {
return false;
}
if ( ! get_post_type_object( $object_type ) ) {
return false;
}
$key = array_search( $object_type, $wp_taxonomies[ $taxonomy ]->object_type, true );
if ( false === $key ) {
return false;
}
unset( $wp_taxonomies[ $taxonomy ]->object_type[ $key ] );
/**
* Fires after a taxonomy is unregistered for an object type.
*
* @since 5.1.0
*
* @param string $taxonomy Taxonomy name.
* @param string $object_type Name of the object type.
*/
do_action( 'unregistered_taxonomy_for_object_type', $taxonomy, $object_type );
return true;
}
//
// Term API.
//
/**
* Retrieves object IDs of valid taxonomy and term.
*
* The strings of `$taxonomies` must exist before this function will continue.
* On failure of finding a valid taxonomy, it will return a WP_Error.
*
* The `$terms` aren't checked the same as `$taxonomies`, but still need to exist
* for object IDs to be returned.
*
* It is possible to change the order that object IDs are returned by using `$args`
* with either ASC or DESC array. The value should be in the key named 'order'.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|int[] $term_ids Term ID or array of term IDs of terms that will be used.
* @param string|string[] $taxonomies String of taxonomy name or Array of string values of taxonomy names.
* @param array|string $args {
* Change the order of the object IDs.
*
* @type string $order Order to retrieve terms. Accepts 'ASC' or 'DESC'. Default 'ASC'.
* }
* @return string[]|WP_Error An array of object IDs as numeric strings on success,
* WP_Error if the taxonomy does not exist.
*/
function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
global $wpdb;
if ( ! is_array( $term_ids ) ) {
$term_ids = array( $term_ids );
}
if ( ! is_array( $taxonomies ) ) {
$taxonomies = array( $taxonomies );
}
foreach ( (array) $taxonomies as $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
}
$defaults = array( 'order' => 'ASC' );
$args = wp_parse_args( $args, $defaults );
$order = ( 'desc' === strtolower( $args['order'] ) ) ? 'DESC' : 'ASC';
$term_ids = array_map( 'intval', $term_ids );
$taxonomies = "'" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "'";
$term_ids = "'" . implode( "', '", $term_ids ) . "'";
$sql = "SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tt.term_id IN ($term_ids) ORDER BY tr.object_id $order";
$last_changed = wp_cache_get_last_changed( 'terms' );
$cache_key = 'get_objects_in_term:' . md5( $sql );
$cache = wp_cache_get_salted( $cache_key, 'term-queries', $last_changed );
if ( false === $cache ) {
$object_ids = $wpdb->get_col( $sql );
wp_cache_set_salted( $cache_key, $object_ids, 'term-queries', $last_changed );
} else {
$object_ids = (array) $cache;
}
if ( ! $object_ids ) {
return array();
}
return $object_ids;
}
/**
* Given a taxonomy query, generates SQL to be appended to a main query.
*
* @since 3.1.0
*
* @see WP_Tax_Query
*
* @param array $tax_query A compact tax query
* @param string $primary_table
* @param string $primary_id_column
* @return string[]
*/
function get_tax_sql( $tax_query, $primary_table, $primary_id_column ) {
$tax_query_obj = new WP_Tax_Query( $tax_query );
return $tax_query_obj->get_sql( $primary_table, $primary_id_column );
}
/**
* Gets all term data from database by term ID.
*
* The usage of the get_term function is to apply filters to a term object. It
* is possible to get a term object from the database before applying the
* filters.
*
* $term ID must be part of $taxonomy, to get from the database. Failure, might
* be able to be captured by the hooks. Failure would be the same value as $wpdb
* returns for the get_row method.
*
* There are two hooks, one is specifically for each term, named 'get_term', and
* the second is for the taxonomy name, 'term_$taxonomy'. Both hooks gets the
* term object, and the taxonomy name as parameters. Both hooks are expected to
* return a term object.
*
* {@see 'get_term'} hook - Takes two parameters the term Object and the taxonomy name.
* Must return term object. Used in get_term() as a catch-all filter for every
* $term.
*
* {@see 'get_$taxonomy'} hook - Takes two parameters the term Object and the taxonomy
* name. Must return term object. $taxonomy will be the taxonomy name, so for
* example, if 'category', it would be 'get_category' as the filter name. Useful
* for custom taxonomies or plugging into default taxonomies.
*
* @todo Better formatting for DocBlock
*
* @since 2.3.0
* @since 4.4.0 Converted to return a WP_Term object if `$output` is `OBJECT`.
* The `$taxonomy` parameter was made optional.
*
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
*
* @param int|WP_Term|object $term If integer, term data will be fetched from the database,
* or from the cache if available.
* If stdClass object (as in the results of a database query),
* will apply filters and return a `WP_Term` object with the `$term` data.
* If `WP_Term`, will return `$term`.
* @param string $taxonomy Optional. Taxonomy name that `$term` is part of.
* @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
* correspond to a WP_Term object, an associative array, or a numeric array,
* respectively. Default OBJECT.
* @param string $filter Optional. How to sanitize term fields. Default 'raw'.
* @return WP_Term|array|WP_Error|null WP_Term instance (or array) on success, depending on the `$output` value.
* WP_Error if `$taxonomy` does not exist. Null for miscellaneous failure.
*/
function get_term( $term, $taxonomy = '', $output = OBJECT, $filter = 'raw' ) {
if ( empty( $term ) ) {
return new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
}
if ( $taxonomy && ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
if ( $term instanceof WP_Term ) {
$_term = $term;
} elseif ( is_object( $term ) ) {
if ( empty( $term->filter ) || 'raw' === $term->filter ) {
$_term = sanitize_term( $term, $taxonomy, 'raw' );
$_term = new WP_Term( $_term );
} else {
$_term = WP_Term::get_instance( $term->term_id );
}
} else {
$_term = WP_Term::get_instance( $term, $taxonomy );
}
if ( is_wp_error( $_term ) ) {
return $_term;
} elseif ( ! $_term ) {
return null;
}
// Ensure for filters that this is not empty.
$taxonomy = $_term->taxonomy;
$old_term = $_term;
/**
* Filters a taxonomy term object.
*
* The {@see 'get_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 4.4.0 `$_term` is now a `WP_Term` object.
*
* @param WP_Term $_term Term object.
* @param string $taxonomy The taxonomy slug.
*/
$_term = apply_filters( 'get_term', $_term, $taxonomy );
/**
* Filters a taxonomy term object.
*
* The dynamic portion of the hook name, `$taxonomy`, refers
* to the slug of the term's taxonomy.
*
* Possible hook names include:
*
* - `get_category`
* - `get_post_tag`
*
* @since 2.3.0
* @since 4.4.0 `$_term` is now a `WP_Term` object.
*
* @param WP_Term $_term Term object.
* @param string $taxonomy The taxonomy slug.
*/
$_term = apply_filters( "get_{$taxonomy}", $_term, $taxonomy );
// Bail if a filter callback has changed the type of the `$_term` object.
if ( ! ( $_term instanceof WP_Term ) ) {
return $_term;
}
// Sanitize term, according to the specified filter.
if ( $_term !== $old_term || $_term->filter !== $filter ) {
$_term->filter( $filter );
}
if ( ARRAY_A === $output ) {
return $_term->to_array();
} elseif ( ARRAY_N === $output ) {
return array_values( $_term->to_array() );
}
return $_term;
}
/**
* Gets all term data from database by term field and data.
*
* Warning: $value is not escaped for 'name' $field. You must do it yourself, if
* required.
*
* The default $field is 'id', therefore it is possible to also use null for
* field, but not recommended that you do so.
*
* If $value does not exist, the return value will be false. If $taxonomy exists
* and $field and $value combinations exist, the term will be returned.
*
* This function will always return the first term that matches the `$field`-
* `$value`-`$taxonomy` combination specified in the parameters. If your query
* is likely to match more than one term (as is likely to be the case when
* `$field` is 'name', for example), consider using get_terms() instead; that
* way, you will get all matching terms, and can provide your own logic for
* deciding which one was intended.
*
* @todo Better formatting for DocBlock.
*
* @since 2.3.0
* @since 4.4.0 `$taxonomy` is optional if `$field` is 'term_taxonomy_id'. Converted to return
* a WP_Term object if `$output` is `OBJECT`.
* @since 5.5.0 Added 'ID' as an alias of 'id' for the `$field` parameter.
*
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
*
* @param string $field Either 'slug', 'name', 'term_id' (or 'id', 'ID'), or 'term_taxonomy_id'.
* @param string|int $value Search for this term value.
* @param string $taxonomy Taxonomy name. Optional, if `$field` is 'term_taxonomy_id'.
* @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
* correspond to a WP_Term object, an associative array, or a numeric array,
* respectively. Default OBJECT.
* @param string $filter Optional. How to sanitize term fields. Default 'raw'.
* @return WP_Term|array|false WP_Term instance (or array) on success, depending on the `$output` value.
* False if `$taxonomy` does not exist or `$term` was not found.
*/
function get_term_by( $field, $value, $taxonomy = '', $output = OBJECT, $filter = 'raw' ) {
// 'term_taxonomy_id' lookups don't require taxonomy checks.
if ( 'term_taxonomy_id' !== $field && ! taxonomy_exists( $taxonomy ) ) {
return false;
}
// No need to perform a query for empty 'slug' or 'name'.
if ( 'slug' === $field || 'name' === $field ) {
$value = (string) $value;
if ( 0 === strlen( $value ) ) {
return false;
}
}
if ( 'id' === $field || 'ID' === $field || 'term_id' === $field ) {
$term = get_term( (int) $value, $taxonomy, $output, $filter );
if ( is_wp_error( $term ) || null === $term ) {
$term = false;
}
return $term;
}
$args = array(
'get' => 'all',
'number' => 1,
'taxonomy' => $taxonomy,
'update_term_meta_cache' => false,
'orderby' => 'none',
'suppress_filter' => true,
);
switch ( $field ) {
case 'slug':
$args['slug'] = $value;
break;
case 'name':
$args['name'] = $value;
break;
case 'term_taxonomy_id':
$args['term_taxonomy_id'] = $value;
unset( $args['taxonomy'] );
break;
default:
return false;
}
$terms = get_terms( $args );
if ( is_wp_error( $terms ) || empty( $terms ) ) {
return false;
}
$term = array_shift( $terms );
// In the case of 'term_taxonomy_id', override the provided `$taxonomy` with whatever we find in the DB.
if ( 'term_taxonomy_id' === $field ) {
$taxonomy = $term->taxonomy;
}
return get_term( $term, $taxonomy, $output, $filter );
}
/**
* Merges all term children into a single array of their IDs.
*
* This recursive function will merge all of the children of $term into the same
* array of term IDs. Only useful for taxonomies which are hierarchical.
*
* Will return an empty array if $term does not exist in $taxonomy.
*
* @since 2.3.0
*
* @param int $term_id ID of term to get children.
* @param string $taxonomy Taxonomy name.
* @return array|WP_Error List of term IDs. WP_Error returned if `$taxonomy` does not exist.
*/
function get_term_children( $term_id, $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
$term_id = (int) $term_id;
$terms = _get_term_hierarchy( $taxonomy );
if ( ! isset( $terms[ $term_id ] ) ) {
return array();
}
$children = $terms[ $term_id ];
foreach ( (array) $terms[ $term_id ] as $child ) {
if ( $term_id === $child ) {
continue;
}
if ( isset( $terms[ $child ] ) ) {
$children = array_merge( $children, get_term_children( $child, $taxonomy ) );
}
}
return $children;
}
/**
* Gets sanitized term field.
*
* The function is for contextual reasons and for simplicity of usage.
*
* @since 2.3.0
* @since 4.4.0 The `$taxonomy` parameter was made optional. `$term` can also now accept a WP_Term object.
*
* @see sanitize_term_field()
*
* @param string $field Term field to fetch.
* @param int|WP_Term $term Term ID or object.
* @param string $taxonomy Optional. Taxonomy name. Default empty.
* @param string $context Optional. How to sanitize term fields. Look at sanitize_term_field() for available options.
* Default 'display'.
* @return string|int|null|WP_Error Will return an empty string if $term is not an object or if $field is not set in $term.
*/
function get_term_field( $field, $term, $taxonomy = '', $context = 'display' ) {
$term = get_term( $term, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! is_object( $term ) ) {
return '';
}
if ( ! isset( $term->$field ) ) {
return '';
}
return sanitize_term_field( $field, $term->$field, $term->term_id, $term->taxonomy, $context );
}
/**
* Sanitizes term for editing.
*
* Return value is sanitize_term() and usage is for sanitizing the term for
* editing. Function is for contextual and simplicity.
*
* @since 2.3.0
*
* @param int|object $id Term ID or object.
* @param string $taxonomy Taxonomy name.
* @return string|int|null|WP_Error Will return empty string if $term is not an object.
*/
function get_term_to_edit( $id, $taxonomy ) {
$term = get_term( $id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! is_object( $term ) ) {
return '';
}
return sanitize_term( $term, $taxonomy, 'edit' );
}
/**
* Retrieves the terms in a given taxonomy or list of taxonomies.
*
* You can fully inject any customizations to the query before it is sent, as
* well as control the output with a filter.
*
* The return type varies depending on the value passed to `$args['fields']`. See
* WP_Term_Query::get_terms() for details. In all cases, a `WP_Error` object will
* be returned if an invalid taxonomy is requested.
*
* The {@see 'get_terms'} filter will be called when the cache has the term and will
* pass the found term along with the array of $taxonomies and array of $args.
* This filter is also called before the array of terms is passed and will pass
* the array of terms, along with the $taxonomies and $args.
*
* The {@see 'list_terms_exclusions'} filter passes the compiled exclusions along with
* the $args.
*
* The {@see 'get_terms_orderby'} filter passes the `ORDER BY` clause for the query
* along with the $args array.
*
* Taxonomy or an array of taxonomies should be passed via the 'taxonomy' argument
* in the `$args` array:
*
* $terms = get_terms( array(
* 'taxonomy' => 'post_tag',
* 'hide_empty' => false,
* ) );
*
* Prior to 4.5.0, taxonomy was passed as the first parameter of `get_terms()`.
*
* {@internal The `$deprecated` parameter is parsed for backward compatibility only.}
*
* @since 2.3.0
* @since 4.2.0 Introduced 'name' and 'childless' parameters.
* @since 4.4.0 Introduced the ability to pass 'term_id' as an alias of 'id' for the `orderby` parameter.
* Introduced the 'meta_query' and 'update_term_meta_cache' parameters. Converted to return
* a list of WP_Term objects.
* @since 4.5.0 Changed the function signature so that the `$args` array can be provided as the first parameter.
* Introduced 'meta_key' and 'meta_value' parameters. Introduced the ability to order results by metadata.
* @since 4.8.0 Introduced 'suppress_filter' parameter.
*
* @param array|string $args Optional. Array or string of arguments. See WP_Term_Query::__construct()
* for information on accepted arguments. Default empty array.
* @param array|string $deprecated Optional. Argument array, when using the legacy function parameter format.
* If present, this parameter will be interpreted as `$args`, and the first
* function parameter will be parsed as a taxonomy or array of taxonomies.
* Default empty.
* @return WP_Term[]|int[]|string[]|string|WP_Error Array of terms, a count thereof as a numeric string,
* or WP_Error if any of the taxonomies do not exist.
* See the function description for more information.
*/
function get_terms( $args = array(), $deprecated = '' ) {
$term_query = new WP_Term_Query();
$defaults = array(
'suppress_filter' => false,
);
/*
* Legacy argument format ($taxonomy, $args) takes precedence.
*
* We detect legacy argument format by checking if
* (a) a second non-empty parameter is passed, or
* (b) the first parameter shares no keys with the default array (ie, it's a list of taxonomies)
*/
$_args = wp_parse_args( $args );
$key_intersect = array_intersect_key( $term_query->query_var_defaults, (array) $_args );
$do_legacy_args = $deprecated || empty( $key_intersect );
if ( $do_legacy_args ) {
$taxonomies = (array) $args;
$args = wp_parse_args( $deprecated, $defaults );
$args['taxonomy'] = $taxonomies;
} else {
$args = wp_parse_args( $args, $defaults );
if ( isset( $args['taxonomy'] ) ) {
$args['taxonomy'] = (array) $args['taxonomy'];
}
}
if ( ! empty( $args['taxonomy'] ) ) {
foreach ( $args['taxonomy'] as $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
}
}
// Don't pass suppress_filter to WP_Term_Query.
$suppress_filter = $args['suppress_filter'];
unset( $args['suppress_filter'] );
$terms = $term_query->query( $args );
// Count queries are not filtered, for legacy reasons.
if ( ! is_array( $terms ) ) {
return $terms;
}
if ( $suppress_filter ) {
return $terms;
}
/**
* Filters the found terms.
*
* @since 2.3.0
* @since 4.6.0 Added the `$term_query` parameter.
*
* @param array $terms Array of found terms.
* @param array|null $taxonomies An array of taxonomies if known.
* @param array $args An array of get_terms() arguments.
* @param WP_Term_Query $term_query The WP_Term_Query object.
*/
return apply_filters( 'get_terms', $terms, $term_query->query_vars['taxonomy'], $term_query->query_vars, $term_query );
}
/**
* Adds metadata to a term.
*
* For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
*
* @since 4.4.0
*
* @param int $term_id Term ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Metadata value. Arrays and objects are stored as serialized data and
* will be returned as the same type when retrieved. Other data types will
* be stored as strings in the database:
* - false is stored and retrieved as an empty string ('')
* - true is stored and retrieved as '1'
* - numbers (both integer and float) are stored and retrieved as strings
* Must be serializable if non-scalar.
* @param bool $unique Optional. Whether the same key should not be added.
* Default false.
* @return int|false|WP_Error Meta ID on success, false on failure.
* WP_Error when term_id is ambiguous between taxonomies.
*/
function add_term_meta( $term_id, $meta_key, $meta_value, $unique = false ) {
if ( wp_term_is_shared( $term_id ) ) {
return new WP_Error( 'ambiguous_term_id', __( 'Term meta cannot be added to terms that are shared between taxonomies.' ), $term_id );
}
return add_metadata( 'term', $term_id, $meta_key, $meta_value, $unique );
}
/**
* Removes metadata matching criteria from a term.
*
* For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
*
* @since 4.4.0
*
* @param int $term_id Term ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Optional. Metadata value. If provided,
* rows will only be removed that match the value.
* Must be serializable if non-scalar. Default empty.
* @return bool True on success, false on failure.
*/
function delete_term_meta( $term_id, $meta_key, $meta_value = '' ) {
return delete_metadata( 'term', $term_id, $meta_key, $meta_value );
}
/**
* Retrieves metadata for a term.
*
* @since 4.4.0
*
* @param int $term_id Term ID.
* @param string $key Optional. The meta key to retrieve. By default,
* returns data for all keys. Default empty.
* @param bool $single Optional. Whether to return a single value.
* This parameter has no effect if `$key` is not specified.
* Default false.
* @return mixed An array of values if `$single` is false.
* The value of the meta field if `$single` is true.
* False for an invalid `$term_id` (non-numeric, zero, or negative value).
* An empty array if a valid but non-existing term ID is passed and `$single` is false.
* An empty string if a valid but non-existing term ID is passed and `$single` is true.
* Note: Non-serialized values are returned as strings:
* - false values are returned as empty strings ('')
* - true values are returned as '1'
* - numbers are returned as strings
* Arrays and objects retain their original type.
*/
function get_term_meta( $term_id, $key = '', $single = false ) {
return get_metadata( 'term', $term_id, $key, $single );
}
/**
* Updates term metadata.
*
* Use the `$prev_value` parameter to differentiate between meta fields with the same key and term ID.
*
* If the meta field for the term does not exist, it will be added.
*
* For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input.
*
* @since 4.4.0
*
* @param int $term_id Term ID.
* @param string $meta_key Metadata key.
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
* @param mixed $prev_value Optional. Previous value to check before updating.
* If specified, only update existing metadata entries with
* this value. Otherwise, update all entries. Default empty.
* @return int|bool|WP_Error Meta ID if the key didn't exist. true on successful update,
* false on failure or if the value passed to the function
* is the same as the one that is already in the database.
* WP_Error when term_id is ambiguous between taxonomies.
*/
function update_term_meta( $term_id, $meta_key, $meta_value, $prev_value = '' ) {
if ( wp_term_is_shared( $term_id ) ) {
return new WP_Error( 'ambiguous_term_id', __( 'Term meta cannot be added to terms that are shared between taxonomies.' ), $term_id );
}
return update_metadata( 'term', $term_id, $meta_key, $meta_value, $prev_value );
}
/**
* Updates metadata cache for list of term IDs.
*
* Performs SQL query to retrieve all metadata for the terms matching `$term_ids` and stores them in the cache.
* Subsequent calls to `get_term_meta()` will not need to query the database.
*
* @since 4.4.0
*
* @param array $term_ids List of term IDs.
* @return array|false An array of metadata on success, false if there is nothing to update.
*/
function update_termmeta_cache( $term_ids ) {
return update_meta_cache( 'term', $term_ids );
}
/**
* Queue term meta for lazy-loading.
*
* @since 6.3.0
*
* @param array $term_ids List of term IDs.
*/
function wp_lazyload_term_meta( array $term_ids ) {
if ( empty( $term_ids ) ) {
return;
}
$lazyloader = wp_metadata_lazyloader();
$lazyloader->queue_objects( 'term', $term_ids );
}
/**
* Gets all meta data, including meta IDs, for the given term ID.
*
* @since 4.9.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id Term ID.
* @return array|false Array with meta data, or false when the meta table is not installed.
*/
function has_term_meta( $term_id ) {
$check = wp_check_term_meta_support_prefilter( null );
if ( null !== $check ) {
return $check;
}
global $wpdb;
return $wpdb->get_results( $wpdb->prepare( "SELECT meta_key, meta_value, meta_id, term_id FROM $wpdb->termmeta WHERE term_id = %d ORDER BY meta_key,meta_id", $term_id ), ARRAY_A );
}
/**
* Registers a meta key for terms.
*
* @since 4.9.8
*
* @param string $taxonomy Taxonomy to register a meta key for. Pass an empty string
* to register the meta key across all existing taxonomies.
* @param string $meta_key The meta key to register.
* @param array $args Data used to describe the meta key when registered. See
* {@see register_meta()} for a list of supported arguments.
* @return bool True if the meta key was successfully registered, false if not.
*/
function register_term_meta( $taxonomy, $meta_key, array $args ) {
$args['object_subtype'] = $taxonomy;
return register_meta( 'term', $meta_key, $args );
}
/**
* Unregisters a meta key for terms.
*
* @since 4.9.8
*
* @param string $taxonomy Taxonomy the meta key is currently registered for. Pass
* an empty string if the meta key is registered across all
* existing taxonomies.
* @param string $meta_key The meta key to unregister.
* @return bool True on success, false if the meta key was not previously registered.
*/
function unregister_term_meta( $taxonomy, $meta_key ) {
return unregister_meta_key( 'term', $meta_key, $taxonomy );
}
/**
* Determines whether a taxonomy term exists.
*
* Formerly is_term(), introduced in 2.3.0.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 3.0.0
* @since 6.0.0 Converted to use `get_terms()`.
*
* @global bool $_wp_suspend_cache_invalidation
*
* @param int|string $term The term to check. Accepts term ID, slug, or name.
* @param string $taxonomy Optional. The taxonomy name to use.
* @param int $parent_term Optional. ID of parent term under which to confine the exists search.
* @return mixed Returns null if the term does not exist.
* Returns the term ID if no taxonomy is specified and the term ID exists.
* Returns an array of the term ID and the term taxonomy ID if the taxonomy is specified and the pairing exists.
* Returns 0 if term ID 0 is passed to the function.
*/
function term_exists( $term, $taxonomy = '', $parent_term = null ) {
global $_wp_suspend_cache_invalidation;
if ( null === $term ) {
return null;
}
$defaults = array(
'get' => 'all',
'fields' => 'ids',
'number' => 1,
'update_term_meta_cache' => false,
'order' => 'ASC',
'orderby' => 'term_id',
'suppress_filter' => true,
);
// Ensure that while importing, queries are not cached.
if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
$defaults['cache_results'] = false;
}
if ( ! empty( $taxonomy ) ) {
$defaults['taxonomy'] = $taxonomy;
$defaults['fields'] = 'all';
}
/**
* Filters default query arguments for checking if a term exists.
*
* @since 6.0.0
*
* @param array $defaults An array of arguments passed to get_terms().
* @param int|string $term The term to check. Accepts term ID, slug, or name.
* @param string $taxonomy The taxonomy name to use. An empty string indicates
* the search is against all taxonomies.
* @param int|null $parent_term ID of parent term under which to confine the exists search.
* Null indicates the search is unconfined.
*/
$defaults = apply_filters( 'term_exists_default_query_args', $defaults, $term, $taxonomy, $parent_term );
if ( ! empty( $taxonomy ) && is_numeric( $parent_term ) ) {
$defaults['parent'] = (int) $parent_term;
}
if ( is_int( $term ) ) {
if ( 0 === $term ) {
return 0;
}
$args = wp_parse_args( array( 'include' => array( $term ) ), $defaults );
$terms = get_terms( $args );
} else {
$term = trim( wp_unslash( $term ) );
if ( '' === $term ) {
return null;
}
$args = wp_parse_args( array( 'slug' => sanitize_title( $term ) ), $defaults );
$terms = get_terms( $args );
if ( empty( $terms ) || is_wp_error( $terms ) ) {
$args = wp_parse_args( array( 'name' => $term ), $defaults );
$terms = get_terms( $args );
}
}
if ( empty( $terms ) || is_wp_error( $terms ) ) {
return null;
}
$_term = array_shift( $terms );
if ( ! empty( $taxonomy ) ) {
return array(
'term_id' => (string) $_term->term_id,
'term_taxonomy_id' => (string) $_term->term_taxonomy_id,
);
}
return (string) $_term;
}
/**
* Checks if a term is an ancestor of another term.
*
* You can use either an ID or the term object for both parameters.
*
* @since 3.4.0
*
* @param int|object $term1 ID or object to check if this is the parent term.
* @param int|object $term2 The child term.
* @param string $taxonomy Taxonomy name that $term1 and `$term2` belong to.
* @return bool Whether `$term2` is a child of `$term1`.
*/
function term_is_ancestor_of( $term1, $term2, $taxonomy ) {
if ( ! isset( $term1->term_id ) ) {
$term1 = get_term( $term1, $taxonomy );
}
if ( ! isset( $term2->parent ) ) {
$term2 = get_term( $term2, $taxonomy );
}
if ( empty( $term1->term_id ) || empty( $term2->parent ) ) {
return false;
}
if ( $term2->parent === $term1->term_id ) {
return true;
}
return term_is_ancestor_of( $term1, get_term( $term2->parent, $taxonomy ), $taxonomy );
}
/**
* Sanitizes all term fields.
*
* Relies on sanitize_term_field() to sanitize the term. The difference is that
* this function will sanitize **all** fields. The context is based
* on sanitize_term_field().
*
* The `$term` is expected to be either an array or an object.
*
* @since 2.3.0
*
* @param array|object $term The term to check.
* @param string $taxonomy The taxonomy name to use.
* @param string $context Optional. Context in which to sanitize the term.
* Accepts 'raw', 'edit', 'db', 'display', 'rss',
* 'attribute', or 'js'. Default 'display'.
* @return array|object Term with all fields sanitized.
*/
function sanitize_term( $term, $taxonomy, $context = 'display' ) {
$fields = array( 'term_id', 'name', 'description', 'slug', 'count', 'parent', 'term_group', 'term_taxonomy_id', 'object_id' );
$do_object = is_object( $term );
$term_id = $do_object ? $term->term_id : ( isset( $term['term_id'] ) ? $term['term_id'] : 0 );
foreach ( (array) $fields as $field ) {
if ( $do_object ) {
if ( isset( $term->$field ) ) {
$term->$field = sanitize_term_field( $field, $term->$field, $term_id, $taxonomy, $context );
}
} else {
if ( isset( $term[ $field ] ) ) {
$term[ $field ] = sanitize_term_field( $field, $term[ $field ], $term_id, $taxonomy, $context );
}
}
}
if ( $do_object ) {
$term->filter = $context;
} else {
$term['filter'] = $context;
}
return $term;
}
/**
* Sanitizes the field value in the term based on the context.
*
* Passing a term field value through the function should be assumed to have
* cleansed the value for whatever context the term field is going to be used.
*
* If no context or an unsupported context is given, then default filters will
* be applied.
*
* There are enough filters for each context to support a custom filtering
* without creating your own filter function. Simply create a function that
* hooks into the filter you need.
*
* @since 2.3.0
*
* @param string $field Term field to sanitize.
* @param string $value Search for this term value.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @param string $context Context in which to sanitize the term field.
* Accepts 'raw', 'edit', 'db', 'display', 'rss',
* 'attribute', or 'js'. Default 'display'.
* @return mixed Sanitized field.
*/
function sanitize_term_field( $field, $value, $term_id, $taxonomy, $context ) {
$int_fields = array( 'parent', 'term_id', 'count', 'term_group', 'term_taxonomy_id', 'object_id' );
if ( in_array( $field, $int_fields, true ) ) {
$value = (int) $value;
if ( $value < 0 ) {
$value = 0;
}
}
$context = strtolower( $context );
if ( 'raw' === $context ) {
return $value;
}
if ( 'edit' === $context ) {
/**
* Filters a term field to edit before it is sanitized.
*
* The dynamic portion of the hook name, `$field`, refers to the term field.
*
* @since 2.3.0
*
* @param mixed $value Value of the term field.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
*/
$value = apply_filters( "edit_term_{$field}", $value, $term_id, $taxonomy );
/**
* Filters the taxonomy field to edit before it is sanitized.
*
* The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
* to the taxonomy slug and taxonomy field, respectively.
*
* @since 2.3.0
*
* @param mixed $value Value of the taxonomy field to edit.
* @param int $term_id Term ID.
*/
$value = apply_filters( "edit_{$taxonomy}_{$field}", $value, $term_id );
if ( 'description' === $field ) {
$value = esc_html( $value ); // textarea_escaped
} else {
$value = esc_attr( $value );
}
} elseif ( 'db' === $context ) {
/**
* Filters a term field value before it is sanitized.
*
* The dynamic portion of the hook name, `$field`, refers to the term field.
*
* @since 2.3.0
*
* @param mixed $value Value of the term field.
* @param string $taxonomy Taxonomy slug.
*/
$value = apply_filters( "pre_term_{$field}", $value, $taxonomy );
/**
* Filters a taxonomy field before it is sanitized.
*
* The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
* to the taxonomy slug and field name, respectively.
*
* @since 2.3.0
*
* @param mixed $value Value of the taxonomy field.
*/
$value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
// Back compat filters.
if ( 'slug' === $field ) {
/**
* Filters the category nicename before it is sanitized.
*
* Use the {@see 'pre_$taxonomy_$field'} hook instead.
*
* @since 2.0.3
*
* @param string $value The category nicename.
*/
$value = apply_filters( 'pre_category_nicename', $value );
}
} elseif ( 'rss' === $context ) {
/**
* Filters the term field for use in RSS.
*
* The dynamic portion of the hook name, `$field`, refers to the term field.
*
* @since 2.3.0
*
* @param mixed $value Value of the term field.
* @param string $taxonomy Taxonomy slug.
*/
$value = apply_filters( "term_{$field}_rss", $value, $taxonomy );
/**
* Filters the taxonomy field for use in RSS.
*
* The dynamic portions of the hook name, `$taxonomy`, and `$field`, refer
* to the taxonomy slug and field name, respectively.
*
* @since 2.3.0
*
* @param mixed $value Value of the taxonomy field.
*/
$value = apply_filters( "{$taxonomy}_{$field}_rss", $value );
} else {
// Use display filters by default.
/**
* Filters the term field sanitized for display.
*
* The dynamic portion of the hook name, `$field`, refers to the term field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the term field.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param string $context Context to retrieve the term field value.
*/
$value = apply_filters( "term_{$field}", $value, $term_id, $taxonomy, $context );
/**
* Filters the taxonomy field sanitized for display.
*
* The dynamic portions of the filter name, `$taxonomy`, and `$field`, refer
* to the taxonomy slug and taxonomy field, respectively.
*
* @since 2.3.0
*
* @param mixed $value Value of the taxonomy field.
* @param int $term_id Term ID.
* @param string $context Context to retrieve the taxonomy field value.
*/
$value = apply_filters( "{$taxonomy}_{$field}", $value, $term_id, $context );
}
if ( 'attribute' === $context ) {
$value = esc_attr( $value );
} elseif ( 'js' === $context ) {
$value = esc_js( $value );
}
// Restore the type for integer fields after esc_attr().
if ( in_array( $field, $int_fields, true ) ) {
$value = (int) $value;
}
return $value;
}
/**
* Counts how many terms are in taxonomy.
*
* Default $args is 'hide_empty' which can be 'hide_empty=true' or array('hide_empty' => true).
*
* {@internal The `$deprecated` parameter is parsed for backward compatibility only.}
*
* @since 2.3.0
* @since 5.6.0 Changed the function signature so that the `$args` array can be provided as the first parameter.
*
* @param array|string $args Optional. Array or string of arguments. See WP_Term_Query::__construct()
* for information on accepted arguments. Default empty array.
* @param array|string $deprecated Optional. Argument array, when using the legacy function parameter format.
* If present, this parameter will be interpreted as `$args`, and the first
* function parameter will be parsed as a taxonomy or array of taxonomies.
* Default empty.
* @return string|WP_Error Numeric string containing the number of terms in that
* taxonomy or WP_Error if the taxonomy does not exist.
*/
function wp_count_terms( $args = array(), $deprecated = '' ) {
$use_legacy_args = false;
// Check whether function is used with legacy signature: `$taxonomy` and `$args`.
if ( $args
&& ( is_string( $args ) && taxonomy_exists( $args )
|| is_array( $args ) && wp_is_numeric_array( $args ) )
) {
$use_legacy_args = true;
}
$defaults = array( 'hide_empty' => false );
if ( $use_legacy_args ) {
$defaults['taxonomy'] = $args;
$args = $deprecated;
}
$args = wp_parse_args( $args, $defaults );
// Backward compatibility.
if ( isset( $args['ignore_empty'] ) ) {
$args['hide_empty'] = $args['ignore_empty'];
unset( $args['ignore_empty'] );
}
$args['fields'] = 'count';
return get_terms( $args );
}
/**
* Unlinks the object from the taxonomy or taxonomies.
*
* Will remove all relationships between the object and any terms in
* a particular taxonomy or taxonomies. Does not remove the term or
* taxonomy itself.
*
* @since 2.3.0
*
* @param int $object_id The term object ID that refers to the term.
* @param string|array $taxonomies List of taxonomy names or single taxonomy name.
*/
function wp_delete_object_term_relationships( $object_id, $taxonomies ) {
$object_id = (int) $object_id;
if ( ! is_array( $taxonomies ) ) {
$taxonomies = array( $taxonomies );
}
foreach ( (array) $taxonomies as $taxonomy ) {
$term_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids' ) );
$term_ids = array_map( 'intval', $term_ids );
wp_remove_object_terms( $object_id, $term_ids, $taxonomy );
}
}
/**
* Removes a term from the database.
*
* If the term is a parent of other terms, then the children will be updated to
* that term's parent.
*
* Metadata associated with the term will be deleted.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term Term ID.
* @param string $taxonomy Taxonomy name.
* @param array|string $args {
* Optional. Array of arguments to override the default term ID. Default empty array.
*
* @type int $default The term ID to make the default term. This will only override
* the terms found if there is only one term found. Any other and
* the found terms are used.
* @type bool $force_default Optional. Whether to force the supplied term as default to be
* assigned even if the object was not going to be term-less.
* Default false.
* }
* @return bool|int|WP_Error True on success, false if term does not exist. Zero on attempted
* deletion of default Category. WP_Error if the taxonomy does not exist.
*/
function wp_delete_term( $term, $taxonomy, $args = array() ) {
global $wpdb;
$term = (int) $term;
$ids = term_exists( $term, $taxonomy );
if ( ! $ids ) {
return false;
}
if ( is_wp_error( $ids ) ) {
return $ids;
}
$tt_id = $ids['term_taxonomy_id'];
$defaults = array();
if ( 'category' === $taxonomy ) {
$defaults['default'] = (int) get_option( 'default_category' );
if ( $defaults['default'] === $term ) {
return 0; // Don't delete the default category.
}
}
// Don't delete the default custom taxonomy term.
$taxonomy_object = get_taxonomy( $taxonomy );
if ( ! empty( $taxonomy_object->default_term ) ) {
$defaults['default'] = (int) get_option( 'default_term_' . $taxonomy );
if ( $defaults['default'] === $term ) {
return 0;
}
}
$args = wp_parse_args( $args, $defaults );
if ( isset( $args['default'] ) ) {
$default = (int) $args['default'];
if ( ! term_exists( $default, $taxonomy ) ) {
unset( $default );
}
}
if ( isset( $args['force_default'] ) ) {
$force_default = $args['force_default'];
}
/**
* Fires when deleting a term, before any modifications are made to posts or terms.
*
* @since 4.1.0
*
* @param int $term Term ID.
* @param string $taxonomy Taxonomy name.
*/
do_action( 'pre_delete_term', $term, $taxonomy );
// Update children to point to new parent.
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$term_obj = get_term( $term, $taxonomy );
if ( is_wp_error( $term_obj ) ) {
return $term_obj;
}
$parent = $term_obj->parent;
$edit_ids = $wpdb->get_results( "SELECT term_id, term_taxonomy_id FROM $wpdb->term_taxonomy WHERE `parent` = " . (int) $term_obj->term_id );
$edit_tt_ids = wp_list_pluck( $edit_ids, 'term_taxonomy_id' );
/**
* Fires immediately before a term to delete's children are reassigned a parent.
*
* @since 2.9.0
*
* @param array $edit_tt_ids An array of term taxonomy IDs for the given term.
*/
do_action( 'edit_term_taxonomies', $edit_tt_ids );
$wpdb->update( $wpdb->term_taxonomy, compact( 'parent' ), array( 'parent' => $term_obj->term_id ) + compact( 'taxonomy' ) );
// Clean the cache for all child terms.
$edit_term_ids = wp_list_pluck( $edit_ids, 'term_id' );
clean_term_cache( $edit_term_ids, $taxonomy );
/**
* Fires immediately after a term to delete's children are reassigned a parent.
*
* @since 2.9.0
*
* @param array $edit_tt_ids An array of term taxonomy IDs for the given term.
*/
do_action( 'edited_term_taxonomies', $edit_tt_ids );
}
// Get the term before deleting it or its term relationships so we can pass to actions below.
$deleted_term = get_term( $term, $taxonomy );
$object_ids = (array) $wpdb->get_col( $wpdb->prepare( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $tt_id ) );
foreach ( $object_ids as $object_id ) {
if ( ! isset( $default ) ) {
wp_remove_object_terms( $object_id, $term, $taxonomy );
continue;
}
$terms = wp_get_object_terms(
$object_id,
$taxonomy,
array(
'fields' => 'ids',
'orderby' => 'none',
)
);
if ( 1 === count( $terms ) ) {
$terms = array( $default );
} else {
$terms = array_diff( $terms, array( $term ) );
if ( isset( $force_default ) && $force_default ) {
$terms = array_merge( $terms, array( $default ) );
}
}
$terms = array_map( 'intval', $terms );
wp_set_object_terms( $object_id, $terms, $taxonomy );
}
// Clean the relationship caches for all object types using this term.
$tax_object = get_taxonomy( $taxonomy );
foreach ( $tax_object->object_type as $object_type ) {
clean_object_term_cache( $object_ids, $object_type );
}
$term_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->termmeta WHERE term_id = %d ", $term ) );
foreach ( $term_meta_ids as $mid ) {
delete_metadata_by_mid( 'term', $mid );
}
/**
* Fires immediately before a term taxonomy ID is deleted.
*
* @since 2.9.0
*
* @param int $tt_id Term taxonomy ID.
*/
do_action( 'delete_term_taxonomy', $tt_id );
$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
/**
* Fires immediately after a term taxonomy ID is deleted.
*
* @since 2.9.0
*
* @param int $tt_id Term taxonomy ID.
*/
do_action( 'deleted_term_taxonomy', $tt_id );
// Delete the term if no taxonomies use it.
if ( ! $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term ) ) ) {
$wpdb->delete( $wpdb->terms, array( 'term_id' => $term ) );
}
clean_term_cache( $term, $taxonomy );
/**
* Fires after a term is deleted from the database and the cache is cleaned.
*
* The {@see 'delete_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.5.0
* @since 4.5.0 Introduced the `$object_ids` argument.
*
* @param int $term Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param WP_Term $deleted_term Copy of the already-deleted term.
* @param array $object_ids List of term object IDs.
*/
do_action( 'delete_term', $term, $tt_id, $taxonomy, $deleted_term, $object_ids );
/**
* Fires after a term in a specific taxonomy is deleted.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the specific
* taxonomy the term belonged to.
*
* Possible hook names include:
*
* - `delete_category`
* - `delete_post_tag`
*
* @since 2.3.0
* @since 4.5.0 Introduced the `$object_ids` argument.
*
* @param int $term Term ID.
* @param int $tt_id Term taxonomy ID.
* @param WP_Term $deleted_term Copy of the already-deleted term.
* @param array $object_ids List of term object IDs.
*/
do_action( "delete_{$taxonomy}", $term, $tt_id, $deleted_term, $object_ids );
return true;
}
/**
* Deletes one existing category.
*
* @since 2.0.0
*
* @param int $cat_id Category term ID.
* @return bool|int|WP_Error Returns true if completes delete action; false if term doesn't exist;
* Zero on attempted deletion of default Category; WP_Error object is
* also a possibility.
*/
function wp_delete_category( $cat_id ) {
return wp_delete_term( $cat_id, 'category' );
}
/**
* Retrieves the terms associated with the given object(s), in the supplied taxonomies.
*
* @since 2.3.0
* @since 4.2.0 Added support for 'taxonomy', 'parent', and 'term_taxonomy_id' values of `$orderby`.
* Introduced `$parent` argument.
* @since 4.4.0 Introduced `$meta_query` and `$update_term_meta_cache` arguments. When `$fields` is 'all' or
* 'all_with_object_id', an array of `WP_Term` objects will be returned.
* @since 4.7.0 Refactored to use WP_Term_Query, and to support any WP_Term_Query arguments.
* @since 6.3.0 Passing `update_term_meta_cache` argument value false by default resulting in get_terms() to not
* prime the term meta cache.
*
* @param int|int[] $object_ids The ID(s) of the object(s) to retrieve.
* @param string|string[] $taxonomies The taxonomy names to retrieve terms from.
* @param array|string $args See WP_Term_Query::__construct() for supported arguments.
* @return WP_Term[]|int[]|string[]|string|WP_Error Array of terms, a count thereof as a numeric string,
* or WP_Error if any of the taxonomies do not exist.
* See WP_Term_Query::get_terms() for more information.
*/
function wp_get_object_terms( $object_ids, $taxonomies, $args = array() ) {
if ( empty( $object_ids ) || empty( $taxonomies ) ) {
return array();
}
if ( ! is_array( $taxonomies ) ) {
$taxonomies = array( $taxonomies );
}
foreach ( $taxonomies as $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
}
if ( ! is_array( $object_ids ) ) {
$object_ids = array( $object_ids );
}
$object_ids = array_map( 'intval', $object_ids );
$defaults = array(
'update_term_meta_cache' => false,
);
$args = wp_parse_args( $args, $defaults );
/**
* Filters arguments for retrieving object terms.
*
* @since 4.9.0
*
* @param array $args An array of arguments for retrieving terms for the given object(s).
* See {@see wp_get_object_terms()} for details.
* @param int[] $object_ids Array of object IDs.
* @param string[] $taxonomies Array of taxonomy names to retrieve terms from.
*/
$args = apply_filters( 'wp_get_object_terms_args', $args, $object_ids, $taxonomies );
/*
* When one or more queried taxonomies is registered with an 'args' array,
* those params override the `$args` passed to this function.
*/
$terms = array();
if ( count( $taxonomies ) > 1 ) {
foreach ( $taxonomies as $index => $taxonomy ) {
$t = get_taxonomy( $taxonomy );
if ( isset( $t->args ) && is_array( $t->args ) && array_merge( $args, $t->args ) != $args ) {
unset( $taxonomies[ $index ] );
$terms = array_merge( $terms, wp_get_object_terms( $object_ids, $taxonomy, array_merge( $args, $t->args ) ) );
}
}
} else {
$t = get_taxonomy( $taxonomies[0] );
if ( isset( $t->args ) && is_array( $t->args ) ) {
$args = array_merge( $args, $t->args );
}
}
$args['taxonomy'] = $taxonomies;
$args['object_ids'] = $object_ids;
// Taxonomies registered without an 'args' param are handled here.
if ( ! empty( $taxonomies ) ) {
$terms_from_remaining_taxonomies = get_terms( $args );
// Array keys should be preserved for values of $fields that use term_id for keys.
if ( ! empty( $args['fields'] ) && str_starts_with( $args['fields'], 'id=>' ) ) {
$terms = $terms + $terms_from_remaining_taxonomies;
} else {
$terms = array_merge( $terms, $terms_from_remaining_taxonomies );
}
}
/**
* Filters the terms for a given object or objects.
*
* @since 4.2.0
*
* @param WP_Term[]|int[]|string[]|string $terms Array of terms or a count thereof as a numeric string.
* @param int[] $object_ids Array of object IDs for which terms were retrieved.
* @param string[] $taxonomies Array of taxonomy names from which terms were retrieved.
* @param array $args Array of arguments for retrieving terms for the given
* object(s). See wp_get_object_terms() for details.
*/
$terms = apply_filters( 'get_object_terms', $terms, $object_ids, $taxonomies, $args );
$object_ids = implode( ',', $object_ids );
$taxonomies = "'" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "'";
/**
* Filters the terms for a given object or objects.
*
* The `$taxonomies` parameter passed to this filter is formatted as a SQL fragment. The
* {@see 'get_object_terms'} filter is recommended as an alternative.
*
* @since 2.8.0
*
* @param WP_Term[]|int[]|string[]|string $terms Array of terms or a count thereof as a numeric string.
* @param string $object_ids Comma separated list of object IDs for which terms were retrieved.
* @param string $taxonomies SQL fragment of taxonomy names from which terms were retrieved.
* @param array $args Array of arguments for retrieving terms for the given
* object(s). See wp_get_object_terms() for details.
*/
return apply_filters( 'wp_get_object_terms', $terms, $object_ids, $taxonomies, $args );
}
/**
* Adds a new term to the database.
*
* A non-existent term is inserted in the following sequence:
* 1. The term is added to the term table, then related to the taxonomy.
* 2. If everything is correct, several actions are fired.
* 3. The 'term_id_filter' is evaluated.
* 4. The term cache is cleaned.
* 5. Several more actions are fired.
* 6. An array is returned containing the `term_id` and `term_taxonomy_id`.
*
* If the 'slug' argument is not empty, then it is checked to see if the term
* is invalid. If it is not a valid, existing term, it is added and the term_id
* is given.
*
* If the taxonomy is hierarchical, and the 'parent' argument is not empty,
* the term is inserted and the term_id will be given.
*
* Error handling:
* If `$taxonomy` does not exist or `$term` is empty,
* a WP_Error object will be returned.
*
* If the term already exists on the same hierarchical level,
* or the term slug and name are not unique, a WP_Error object will be returned.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 2.3.0
*
* @param string $term The term name to add.
* @param string $taxonomy The taxonomy to which to add the term.
* @param array|string $args {
* Optional. Array or query string of arguments for inserting a term.
*
* @type string $alias_of Slug of the term to make this term an alias of.
* Default empty string. Accepts a term slug.
* @type string $description The term description. Default empty string.
* @type int $parent The id of the parent term. Default 0.
* @type string $slug The term slug to use. Default empty string.
* }
* @return array|WP_Error {
* An array of the new term data, WP_Error otherwise.
*
* @type int $term_id The new term ID.
* @type int|string $term_taxonomy_id The new term taxonomy ID. Can be a numeric string.
* }
*/
function wp_insert_term( $term, $taxonomy, $args = array() ) {
global $wpdb;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
/**
* Filters a term before it is sanitized and inserted into the database.
*
* @since 3.0.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param string|WP_Error $term The term name to add, or a WP_Error object if there's an error.
* @param string $taxonomy Taxonomy slug.
* @param array|string $args Array or query string of arguments passed to wp_insert_term().
*/
$term = apply_filters( 'pre_insert_term', $term, $taxonomy, $args );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( is_int( $term ) && 0 === $term ) {
return new WP_Error( 'invalid_term_id', __( 'Invalid term ID.' ) );
}
if ( '' === trim( $term ) ) {
return new WP_Error( 'empty_term_name', __( 'A name is required for this term.' ) );
}
$defaults = array(
'alias_of' => '',
'description' => '',
'parent' => 0,
'slug' => '',
);
$args = wp_parse_args( $args, $defaults );
if ( (int) $args['parent'] > 0 && ! term_exists( (int) $args['parent'] ) ) {
return new WP_Error( 'missing_parent', __( 'Parent term does not exist.' ) );
}
$args['name'] = $term;
$args['taxonomy'] = $taxonomy;
// Coerce null description to strings, to avoid database errors.
$args['description'] = (string) $args['description'];
$args = sanitize_term( $args, $taxonomy, 'db' );
// expected_slashed ($name)
$name = wp_unslash( $args['name'] );
$description = wp_unslash( $args['description'] );
$parent = (int) $args['parent'];
// Sanitization could clean the name to an empty string that must be checked again.
if ( '' === $name ) {
return new WP_Error( 'invalid_term_name', __( 'Invalid term name.' ) );
}
$slug_provided = ! empty( $args['slug'] );
if ( ! $slug_provided ) {
$slug = sanitize_title( $name );
} else {
$slug = $args['slug'];
}
$term_group = 0;
if ( $args['alias_of'] ) {
$alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
} elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
*/
$term_group = $wpdb->get_var( "SELECT MAX(term_group) FROM $wpdb->terms" ) + 1;
wp_update_term(
$alias->term_id,
$taxonomy,
array(
'term_group' => $term_group,
)
);
}
}
/*
* Prevent the creation of terms with duplicate names at the same level of a taxonomy hierarchy,
* unless a unique slug has been explicitly provided.
*/
$name_matches = get_terms(
array(
'taxonomy' => $taxonomy,
'name' => $name,
'hide_empty' => false,
'parent' => $args['parent'],
'update_term_meta_cache' => false,
)
);
/*
* The `name` match in `get_terms()` doesn't differentiate accented characters,
* so we do a stricter comparison here.
*/
$name_match = null;
if ( $name_matches ) {
foreach ( $name_matches as $_match ) {
if ( strtolower( $name ) === strtolower( $_match->name ) ) {
$name_match = $_match;
break;
}
}
}
if ( $name_match ) {
$slug_match = get_term_by( 'slug', $slug, $taxonomy );
if ( ! $slug_provided || $name_match->slug === $slug || $slug_match ) {
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$siblings = get_terms(
array(
'taxonomy' => $taxonomy,
'get' => 'all',
'parent' => $parent,
'update_term_meta_cache' => false,
)
);
$existing_term = null;
$sibling_names = wp_list_pluck( $siblings, 'name' );
$sibling_slugs = wp_list_pluck( $siblings, 'slug' );
if ( ( ! $slug_provided || $name_match->slug === $slug ) && in_array( $name, $sibling_names, true ) ) {
$existing_term = $name_match;
} elseif ( $slug_match && in_array( $slug, $sibling_slugs, true ) ) {
$existing_term = $slug_match;
}
if ( $existing_term ) {
return new WP_Error( 'term_exists', __( 'A term with the name provided already exists with this parent.' ), $existing_term->term_id );
}
} else {
return new WP_Error( 'term_exists', __( 'A term with the name provided already exists in this taxonomy.' ), $name_match->term_id );
}
}
}
$slug = wp_unique_term_slug( $slug, (object) $args );
$data = compact( 'name', 'slug', 'term_group' );
/**
* Filters term data before it is inserted into the database.
*
* @since 4.7.0
*
* @param array $data Term data to be inserted.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
$data = apply_filters( 'wp_insert_term_data', $data, $taxonomy, $args );
if ( false === $wpdb->insert( $wpdb->terms, $data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term into the database.' ), $wpdb->last_error );
}
$term_id = (int) $wpdb->insert_id;
// Seems unreachable. However, is used in the case that a term name is provided, which sanitizes to an empty string.
if ( empty( $slug ) ) {
$slug = sanitize_title( $slug, $term_id );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_terms', $term_id, $taxonomy );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_terms', $term_id, $taxonomy );
}
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
if ( ! empty( $tt_id ) ) {
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
if ( false === $wpdb->insert( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ) + array( 'count' => 0 ) ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term taxonomy into the database.' ), $wpdb->last_error );
}
$tt_id = (int) $wpdb->insert_id;
/*
* Confidence check: if we just created a term with the same parent + taxonomy + slug but a higher term_id than
* an existing term, then we have unwittingly created a duplicate term. Delete the dupe, and use the term_id
* and term_taxonomy_id of the older term instead. Then return out of the function so that the "create" hooks
* are not fired.
*/
$duplicate_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.term_id, t.slug, tt.term_taxonomy_id, tt.taxonomy FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON ( tt.term_id = t.term_id ) WHERE t.slug = %s AND tt.parent = %d AND tt.taxonomy = %s AND t.term_id < %d AND tt.term_taxonomy_id != %d", $slug, $parent, $taxonomy, $term_id, $tt_id ) );
/**
* Filters the duplicate term check that takes place during term creation.
*
* Term parent + taxonomy + slug combinations are meant to be unique, and wp_insert_term()
* performs a last-minute confirmation of this uniqueness before allowing a new term
* to be created. Plugins with different uniqueness requirements may use this filter
* to bypass or modify the duplicate-term check.
*
* @since 5.1.0
*
* @param object $duplicate_term Duplicate term row from terms table, if found.
* @param string $term Term being inserted.
* @param string $taxonomy Taxonomy name.
* @param array $args Arguments passed to wp_insert_term().
* @param int $tt_id term_taxonomy_id for the newly created term.
*/
$duplicate_term = apply_filters( 'wp_insert_term_duplicate_term_check', $duplicate_term, $term, $taxonomy, $args, $tt_id );
if ( $duplicate_term ) {
$wpdb->delete( $wpdb->terms, array( 'term_id' => $term_id ) );
$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
$term_id = (int) $duplicate_term->term_id;
$tt_id = (int) $duplicate_term->term_taxonomy_id;
clean_term_cache( $term_id, $taxonomy );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Fires immediately after a new term is created, before the term cache is cleaned.
*
* The {@see 'create_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'create_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a new term is created for a specific taxonomy.
*
* The dynamic portion of the hook name, `$taxonomy`, refers
* to the slug of the taxonomy the term was created for.
*
* Possible hook names include:
*
* - `create_category`
* - `create_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "create_{$taxonomy}", $term_id, $tt_id, $args );
/**
* Filters the term ID after a new term is created.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
$term_id = apply_filters( 'term_id_filter', $term_id, $tt_id, $args );
clean_term_cache( $term_id, $taxonomy );
/**
* Fires after a new term is created, and after the term cache has been cleaned.
*
* The {@see 'created_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'created_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a new term in a specific taxonomy is created, and after the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `created_category`
* - `created_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "created_{$taxonomy}", $term_id, $tt_id, $args );
/**
* Fires after a term has been saved, and the term cache has been cleared.
*
* The {@see 'saved_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 5.5.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param bool $update Whether this is an existing term being updated.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( 'saved_term', $term_id, $tt_id, $taxonomy, false, $args );
/**
* Fires after a term in a specific taxonomy has been saved, and the term
* cache has been cleared.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `saved_category`
* - `saved_post_tag`
*
* @since 5.5.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param bool $update Whether this is an existing term being updated.
* @param array $args Arguments passed to wp_insert_term().
*/
do_action( "saved_{$taxonomy}", $term_id, $tt_id, false, $args );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Creates term and taxonomy relationships.
*
* Relates an object (post, link, etc.) to a term and taxonomy type. Creates the
* term and taxonomy relationship if it doesn't already exist. Creates a term if
* it doesn't exist (using the slug).
*
* A relationship means that the term is grouped in or belongs to the taxonomy.
* A term has no meaning until it is given context by defining which taxonomy it
* exists under.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id The object to relate to.
* @param string|int|array $terms A single term slug, single term ID, or array of either term slugs or IDs.
* Will replace all existing related terms in this taxonomy. Passing an
* empty array will remove all related terms.
* @param string $taxonomy The context in which to relate the term to the object.
* @param bool $append Optional. If false will delete difference of terms. Default false.
* @return array|WP_Error Term taxonomy IDs of the affected terms or WP_Error on failure.
*/
function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) {
global $wpdb;
$object_id = (int) $object_id;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
if ( empty( $terms ) ) {
$terms = array();
} elseif ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
if ( ! $append ) {
$old_tt_ids = wp_get_object_terms(
$object_id,
$taxonomy,
array(
'fields' => 'tt_ids',
'orderby' => 'none',
'update_term_meta_cache' => false,
)
);
} else {
$old_tt_ids = array();
}
$tt_ids = array();
$new_tt_ids = array();
foreach ( (array) $terms as $term ) {
if ( '' === trim( $term ) ) {
continue;
}
$term_info = term_exists( $term, $taxonomy );
if ( ! $term_info ) {
// Skip if a non-existent term ID is passed.
if ( is_int( $term ) ) {
continue;
}
$term_info = wp_insert_term( $term, $taxonomy );
}
if ( is_wp_error( $term_info ) ) {
return $term_info;
}
$tt_id = $term_info['term_taxonomy_id'];
$tt_ids[] = $tt_id;
if ( $wpdb->get_var( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id = %d", $object_id, $tt_id ) ) ) {
continue;
}
/**
* Fires immediately before an object-term relationship is added.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'add_term_relationship', $object_id, $tt_id, $taxonomy );
$wpdb->insert(
$wpdb->term_relationships,
array(
'object_id' => $object_id,
'term_taxonomy_id' => $tt_id,
)
);
/**
* Fires immediately after an object-term relationship is added.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'added_term_relationship', $object_id, $tt_id, $taxonomy );
$new_tt_ids[] = $tt_id;
}
if ( $new_tt_ids ) {
wp_update_term_count( $new_tt_ids, $taxonomy );
}
if ( ! $append ) {
$delete_tt_ids = array_diff( $old_tt_ids, $tt_ids );
if ( $delete_tt_ids ) {
$in_delete_tt_ids = "'" . implode( "', '", $delete_tt_ids ) . "'";
$delete_term_ids = $wpdb->get_col( $wpdb->prepare( "SELECT tt.term_id FROM $wpdb->term_taxonomy AS tt WHERE tt.taxonomy = %s AND tt.term_taxonomy_id IN ($in_delete_tt_ids)", $taxonomy ) );
$delete_term_ids = array_map( 'intval', $delete_term_ids );
$remove = wp_remove_object_terms( $object_id, $delete_term_ids, $taxonomy );
if ( is_wp_error( $remove ) ) {
return $remove;
}
}
}
$t = get_taxonomy( $taxonomy );
if ( ! $append && isset( $t->sort ) && $t->sort ) {
$values = array();
$term_order = 0;
$final_tt_ids = wp_get_object_terms(
$object_id,
$taxonomy,
array(
'fields' => 'tt_ids',
'update_term_meta_cache' => false,
)
);
foreach ( $tt_ids as $tt_id ) {
if ( in_array( (int) $tt_id, $final_tt_ids, true ) ) {
$values[] = $wpdb->prepare( '(%d, %d, %d)', $object_id, $tt_id, ++$term_order );
}
}
if ( $values ) {
if ( false === $wpdb->query( "INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id, term_order) VALUES " . implode( ',', $values ) . ' ON DUPLICATE KEY UPDATE term_order = VALUES(term_order)' ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert term relationship into the database.' ), $wpdb->last_error );
}
}
}
wp_cache_delete( $object_id, $taxonomy . '_relationships' );
wp_cache_set_terms_last_changed();
/**
* Fires after an object's terms have been set.
*
* @since 2.8.0
*
* @param int $object_id Object ID.
* @param array $terms An array of object term IDs or slugs.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
* @param bool $append Whether to append new terms to the old terms.
* @param array $old_tt_ids Old array of term taxonomy IDs.
*/
do_action( 'set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids );
return $tt_ids;
}
/**
* Adds term(s) associated with a given object.
*
* @since 3.6.0
*
* @param int $object_id The ID of the object to which the terms will be added.
* @param string|int|array $terms The slug(s) or ID(s) of the term(s) to add.
* @param array|string $taxonomy Taxonomy name.
* @return array|WP_Error Term taxonomy IDs of the affected terms.
*/
function wp_add_object_terms( $object_id, $terms, $taxonomy ) {
return wp_set_object_terms( $object_id, $terms, $taxonomy, true );
}
/**
* Removes term(s) associated with a given object.
*
* @since 3.6.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id The ID of the object from which the terms will be removed.
* @param string|int|array $terms The slug(s) or ID(s) of the term(s) to remove.
* @param string $taxonomy Taxonomy name.
* @return bool|WP_Error True on success, false or WP_Error on failure.
*/
function wp_remove_object_terms( $object_id, $terms, $taxonomy ) {
global $wpdb;
$object_id = (int) $object_id;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
if ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
$tt_ids = array();
foreach ( (array) $terms as $term ) {
if ( '' === trim( $term ) ) {
continue;
}
$term_info = term_exists( $term, $taxonomy );
if ( ! $term_info ) {
// Skip if a non-existent term ID is passed.
if ( is_int( $term ) ) {
continue;
}
}
if ( is_wp_error( $term_info ) ) {
return $term_info;
}
$tt_ids[] = $term_info['term_taxonomy_id'];
}
if ( $tt_ids ) {
$in_tt_ids = "'" . implode( "', '", $tt_ids ) . "'";
/**
* Fires immediately before an object-term relationship is deleted.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'delete_term_relationships', $object_id, $tt_ids, $taxonomy );
$deleted = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id ) );
wp_cache_delete( $object_id, $taxonomy . '_relationships' );
wp_cache_set_terms_last_changed();
/**
* Fires immediately after an object-term relationship is deleted.
*
* @since 2.9.0
* @since 4.7.0 Added the `$taxonomy` parameter.
*
* @param int $object_id Object ID.
* @param array $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'deleted_term_relationships', $object_id, $tt_ids, $taxonomy );
wp_update_term_count( $tt_ids, $taxonomy );
return (bool) $deleted;
}
return false;
}
/**
* Makes term slug unique, if it isn't already.
*
* The `$slug` has to be unique global to every taxonomy, meaning that one
* taxonomy term can't have a matching slug with another taxonomy term. Each
* slug has to be globally unique for every taxonomy.
*
* The way this works is that if the taxonomy that the term belongs to is
* hierarchical and has a parent, it will append that parent to the $slug.
*
* If that still doesn't return a unique slug, then it tries to append a number
* until it finds a number that is truly unique.
*
* The only purpose for `$term` is for appending a parent, if one exists.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $slug The string that will be tried for a unique slug.
* @param object $term The term object that the `$slug` will belong to.
* @return string Will return a true unique slug.
*/
function wp_unique_term_slug( $slug, $term ) {
global $wpdb;
$needs_suffix = true;
$original_slug = $slug;
// As of 4.1, duplicate slugs are allowed as long as they're in different taxonomies.
if ( ! term_exists( $slug ) || get_option( 'db_version' ) >= 30133 && ! get_term_by( 'slug', $slug, $term->taxonomy ) ) {
$needs_suffix = false;
}
/*
* If the taxonomy supports hierarchy and the term has a parent, make the slug unique
* by incorporating parent slugs.
*/
$parent_suffix = '';
if ( $needs_suffix && is_taxonomy_hierarchical( $term->taxonomy ) && ! empty( $term->parent ) ) {
$the_parent = $term->parent;
while ( ! empty( $the_parent ) ) {
$parent_term = get_term( $the_parent, $term->taxonomy );
if ( is_wp_error( $parent_term ) || empty( $parent_term ) ) {
break;
}
$parent_suffix .= '-' . $parent_term->slug;
if ( ! term_exists( $slug . $parent_suffix ) ) {
break;
}
if ( empty( $parent_term->parent ) ) {
break;
}
$the_parent = $parent_term->parent;
}
}
// If we didn't get a unique slug, try appending a number to make it unique.
/**
* Filters whether the proposed unique term slug is bad.
*
* @since 4.3.0
*
* @param bool $needs_suffix Whether the slug needs to be made unique with a suffix.
* @param string $slug The slug.
* @param object $term Term object.
*/
if ( apply_filters( 'wp_unique_term_slug_is_bad_slug', $needs_suffix, $slug, $term ) ) {
if ( $parent_suffix ) {
$slug .= $parent_suffix;
}
if ( ! empty( $term->term_id ) ) {
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $term->term_id );
} else {
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug );
}
if ( $wpdb->get_var( $query ) ) { // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$num = 2;
do {
$alt_slug = $slug . "-$num";
++$num;
$slug_check = $wpdb->get_var( $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug ) );
} while ( $slug_check );
$slug = $alt_slug;
}
}
/**
* Filters the unique term slug.
*
* @since 4.3.0
*
* @param string $slug Unique term slug.
* @param object $term Term object.
* @param string $original_slug Slug originally passed to the function for testing.
*/
return apply_filters( 'wp_unique_term_slug', $slug, $term, $original_slug );
}
/**
* Updates term based on arguments provided.
*
* The `$args` will indiscriminately override all values with the same field name.
* Care must be taken to not override important information need to update or
* update will fail (or perhaps create a new term, neither would be acceptable).
*
* Defaults will set 'alias_of', 'description', 'parent', and 'slug' if not
* defined in `$args` already.
*
* 'alias_of' will create a term group, if it doesn't already exist, and
* update it for the `$term`.
*
* If the 'slug' argument in `$args` is missing, then the 'name' will be used.
* If you set 'slug' and it isn't unique, then a WP_Error is returned.
* If you don't pass any slug, then a unique one will be created.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id The ID of the term.
* @param string $taxonomy The taxonomy of the term.
* @param array $args {
* Optional. Array of arguments for updating a term.
*
* @type string $alias_of Slug of the term to make this term an alias of.
* Default empty string. Accepts a term slug.
* @type string $description The term description. Default empty string.
* @type int $parent The id of the parent term. Default 0.
* @type string $slug The term slug to use. Default empty string.
* }
* @return array|WP_Error An array containing the `term_id` and `term_taxonomy_id`,
* WP_Error otherwise.
*/
function wp_update_term( $term_id, $taxonomy, $args = array() ) {
global $wpdb;
if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
}
$term_id = (int) $term_id;
// First, get all of the original args.
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! $term ) {
return new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
}
$term = (array) $term->data;
// Escape data pulled from DB.
$term = wp_slash( $term );
// Merge old and new args with new args overwriting old ones.
$args = array_merge( $term, $args );
$defaults = array(
'alias_of' => '',
'description' => '',
'parent' => 0,
'slug' => '',
);
$args = wp_parse_args( $args, $defaults );
$args = sanitize_term( $args, $taxonomy, 'db' );
$parsed_args = $args;
// expected_slashed ($name)
$name = wp_unslash( $args['name'] );
$description = wp_unslash( $args['description'] );
$parsed_args['name'] = $name;
$parsed_args['description'] = $description;
if ( '' === trim( $name ) ) {
return new WP_Error( 'empty_term_name', __( 'A name is required for this term.' ) );
}
if ( (int) $parsed_args['parent'] > 0 && ! term_exists( (int) $parsed_args['parent'] ) ) {
return new WP_Error( 'missing_parent', __( 'Parent term does not exist.' ) );
}
$empty_slug = false;
if ( empty( $args['slug'] ) ) {
$empty_slug = true;
$slug = sanitize_title( $name );
} else {
$slug = $args['slug'];
}
$parsed_args['slug'] = $slug;
$term_group = isset( $parsed_args['term_group'] ) ? $parsed_args['term_group'] : 0;
if ( $args['alias_of'] ) {
$alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
} elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
*/
$term_group = $wpdb->get_var( "SELECT MAX(term_group) FROM $wpdb->terms" ) + 1;
wp_update_term(
$alias->term_id,
$taxonomy,
array(
'term_group' => $term_group,
)
);
}
$parsed_args['term_group'] = $term_group;
}
/**
* Filters the term parent.
*
* Hook to this filter to see if it will cause a hierarchy loop.
*
* @since 3.1.0
*
* @param int $parent_term ID of the parent term.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $parsed_args An array of potentially altered update arguments for the given term.
* @param array $args Arguments passed to wp_update_term().
*/
$parent = (int) apply_filters( 'wp_update_term_parent', $args['parent'], $term_id, $taxonomy, $parsed_args, $args );
// Check for duplicate slug.
$duplicate = get_term_by( 'slug', $slug, $taxonomy );
if ( $duplicate && $duplicate->term_id !== $term_id ) {
/*
* If an empty slug was passed or the parent changed, reset the slug to something unique.
* Otherwise, bail.
*/
if ( $empty_slug || ( $parent !== (int) $term['parent'] ) ) {
$slug = wp_unique_term_slug( $slug, (object) $args );
} else {
/* translators: %s: Taxonomy term slug. */
return new WP_Error( 'duplicate_term_slug', sprintf( __( 'The slug “%s” is already in use by another term.' ), $slug ) );
}
}
$tt_id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
// Check whether this is a shared term that needs splitting.
$_term_id = _split_shared_term( $term_id, $tt_id );
if ( ! is_wp_error( $_term_id ) ) {
$term_id = $_term_id;
}
/**
* Fires immediately before the given terms are edited.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_terms', $term_id, $taxonomy, $args );
$data = compact( 'name', 'slug', 'term_group' );
/**
* Filters term data before it is updated in the database.
*
* @since 4.7.0
*
* @param array $data Term data to be updated.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
$data = apply_filters( 'wp_update_term_data', $data, $term_id, $taxonomy, $args );
$wpdb->update( $wpdb->terms, $data, compact( 'term_id' ) );
if ( empty( $slug ) ) {
$slug = sanitize_title( $name, $term_id );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
}
/**
* Fires immediately after a term is updated in the database, but before its
* term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_terms', $term_id, $taxonomy, $args );
/**
* Fires immediate before a term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy, $args );
$wpdb->update( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ), array( 'term_taxonomy_id' => $tt_id ) );
/**
* Fires immediately after a term-taxonomy relationship is updated.
*
* @since 2.9.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy, $args );
/**
* Fires after a term has been updated, but before the term cache has been cleaned.
*
* The {@see 'edit_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edit_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a term in a specific taxonomy has been updated, but before the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `edit_category`
* - `edit_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( "edit_{$taxonomy}", $term_id, $tt_id, $args );
/** This filter is documented in wp-includes/taxonomy.php */
$term_id = apply_filters( 'term_id_filter', $term_id, $tt_id );
clean_term_cache( $term_id, $taxonomy );
/**
* Fires after a term has been updated, and the term cache has been cleaned.
*
* The {@see 'edited_$taxonomy'} hook is also available for targeting a specific
* taxonomy.
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( 'edited_term', $term_id, $tt_id, $taxonomy, $args );
/**
* Fires after a term for a specific taxonomy has been updated, and the term
* cache has been cleaned.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `edited_category`
* - `edited_post_tag`
*
* @since 2.3.0
* @since 6.1.0 The `$args` parameter was added.
*
* @param int $term_id Term ID.
* @param int $tt_id Term taxonomy ID.
* @param array $args Arguments passed to wp_update_term().
*/
do_action( "edited_{$taxonomy}", $term_id, $tt_id, $args );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'saved_term', $term_id, $tt_id, $taxonomy, true, $args );
/** This action is documented in wp-includes/taxonomy.php */
do_action( "saved_{$taxonomy}", $term_id, $tt_id, true, $args );
return array(
'term_id' => $term_id,
'term_taxonomy_id' => $tt_id,
);
}
/**
* Enables or disables term counting.
*
* @since 2.5.0
*
* @param bool $defer Optional. Enable if true, disable if false.
* @return bool Whether term counting is enabled or disabled.
*/
function wp_defer_term_counting( $defer = null ) {
static $_defer = false;
if ( is_bool( $defer ) ) {
$_defer = $defer;
// Flush any deferred counts.
if ( ! $defer ) {
wp_update_term_count( null, null, true );
}
}
return $_defer;
}
/**
* Updates the amount of terms in taxonomy.
*
* If there is a taxonomy callback applied, then it will be called for updating
* the count.
*
* The default action is to count what the amount of terms have the relationship
* of term ID. Once that is done, then update the database.
*
* @since 2.3.0
*
* @param int|array $terms The term_taxonomy_id of the terms.
* @param string $taxonomy The context of the term.
* @param bool $do_deferred Whether to flush the deferred term counts too. Default false.
* @return bool If no terms will return false, and if successful will return true.
*/
function wp_update_term_count( $terms, $taxonomy, $do_deferred = false ) {
static $_deferred = array();
if ( $do_deferred ) {
foreach ( (array) array_keys( $_deferred ) as $tax ) {
wp_update_term_count_now( $_deferred[ $tax ], $tax );
unset( $_deferred[ $tax ] );
}
}
if ( empty( $terms ) ) {
return false;
}
if ( ! is_array( $terms ) ) {
$terms = array( $terms );
}
if ( wp_defer_term_counting() ) {
if ( ! isset( $_deferred[ $taxonomy ] ) ) {
$_deferred[ $taxonomy ] = array();
}
$_deferred[ $taxonomy ] = array_unique( array_merge( $_deferred[ $taxonomy ], $terms ) );
return true;
}
return wp_update_term_count_now( $terms, $taxonomy );
}
/**
* Performs term count update immediately.
*
* @since 2.5.0
*
* @param array $terms The term_taxonomy_id of terms to update.
* @param string $taxonomy The context of the term.
* @return true Always true when complete.
*/
function wp_update_term_count_now( $terms, $taxonomy ) {
$terms = array_map( 'intval', $terms );
$taxonomy = get_taxonomy( $taxonomy );
if ( ! empty( $taxonomy->update_count_callback ) ) {
call_user_func( $taxonomy->update_count_callback, $terms, $taxonomy );
} else {
$object_types = (array) $taxonomy->object_type;
foreach ( $object_types as &$object_type ) {
if ( str_starts_with( $object_type, 'attachment:' ) ) {
list( $object_type ) = explode( ':', $object_type );
}
}
if ( array_filter( $object_types, 'post_type_exists' ) == $object_types ) {
// Only post types are attached to this taxonomy.
_update_post_term_count( $terms, $taxonomy );
} else {
// Default count updater.
_update_generic_term_count( $terms, $taxonomy );
}
}
clean_term_cache( $terms, '', false );
return true;
}
//
// Cache.
//
/**
* Removes the taxonomy relationship to terms from the cache.
*
* Will remove the entire taxonomy relationship containing term `$object_id`. The
* term IDs have to exist within the taxonomy `$object_type` for the deletion to
* take place.
*
* @since 2.3.0
*
* @global bool $_wp_suspend_cache_invalidation
*
* @see get_object_taxonomies() for more on $object_type.
*
* @param int|array $object_ids Single or list of term object ID(s).
* @param array|string $object_type The taxonomy object type.
*/
function clean_object_term_cache( $object_ids, $object_type ) {
global $_wp_suspend_cache_invalidation;
if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
return;
}
if ( ! is_array( $object_ids ) ) {
$object_ids = array( $object_ids );
}
$taxonomies = get_object_taxonomies( $object_type );
foreach ( $taxonomies as $taxonomy ) {
wp_cache_delete_multiple( $object_ids, "{$taxonomy}_relationships" );
}
wp_cache_set_terms_last_changed();
/**
* Fires after the object term cache has been cleaned.
*
* @since 2.5.0
*
* @param array $object_ids An array of object IDs.
* @param string $object_type Object type.
*/
do_action( 'clean_object_term_cache', $object_ids, $object_type );
}
/**
* Removes all of the term IDs from the cache.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global bool $_wp_suspend_cache_invalidation
*
* @param int|int[] $ids Single or array of term IDs.
* @param string $taxonomy Optional. Taxonomy slug. Can be empty, in which case the taxonomies of the passed
* term IDs will be used. Default empty.
* @param bool $clean_taxonomy Optional. Whether to clean taxonomy wide caches (true), or just individual
* term object caches (false). Default true.
*/
function clean_term_cache( $ids, $taxonomy = '', $clean_taxonomy = true ) {
global $wpdb, $_wp_suspend_cache_invalidation;
if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
return;
}
if ( ! is_array( $ids ) ) {
$ids = array( $ids );
}
$taxonomies = array();
// If no taxonomy, assume tt_ids.
if ( empty( $taxonomy ) ) {
$tt_ids = array_map( 'intval', $ids );
$tt_ids = implode( ', ', $tt_ids );
$terms = $wpdb->get_results( "SELECT term_id, taxonomy FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)" );
$ids = array();
foreach ( (array) $terms as $term ) {
$taxonomies[] = $term->taxonomy;
$ids[] = $term->term_id;
}
wp_cache_delete_multiple( $ids, 'terms' );
$taxonomies = array_unique( $taxonomies );
} else {
wp_cache_delete_multiple( $ids, 'terms' );
$taxonomies = array( $taxonomy );
}
foreach ( $taxonomies as $taxonomy ) {
if ( $clean_taxonomy ) {
clean_taxonomy_cache( $taxonomy );
}
/**
* Fires once after each taxonomy's term cache has been cleaned.
*
* @since 2.5.0
* @since 4.5.0 Added the `$clean_taxonomy` parameter.
*
* @param array $ids An array of term IDs.
* @param string $taxonomy Taxonomy slug.
* @param bool $clean_taxonomy Whether or not to clean taxonomy-wide caches
*/
do_action( 'clean_term_cache', $ids, $taxonomy, $clean_taxonomy );
}
wp_cache_set_terms_last_changed();
}
/**
* Cleans the caches for a taxonomy.
*
* @since 4.9.0
*
* @param string $taxonomy Taxonomy slug.
*/
function clean_taxonomy_cache( $taxonomy ) {
wp_cache_delete( 'all_ids', $taxonomy );
wp_cache_delete( 'get', $taxonomy );
wp_cache_set_terms_last_changed();
// Regenerate cached hierarchy.
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
delete_option( "{$taxonomy}_children" );
_get_term_hierarchy( $taxonomy );
}
/**
* Fires after a taxonomy's caches have been cleaned.
*
* @since 4.9.0
*
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'clean_taxonomy_cache', $taxonomy );
}
/**
* Retrieves the cached term objects for the given object ID.
*
* Upstream functions (like get_the_terms() and is_object_in_term()) are
* responsible for populating the object-term relationship cache. The current
* function only fetches relationship data that is already in the cache.
*
* @since 2.3.0
* @since 4.7.0 Returns a `WP_Error` object if there's an error with
* any of the matched terms.
*
* @param int $id Term object ID, for example a post, comment, or user ID.
* @param string $taxonomy Taxonomy name.
* @return bool|WP_Term[]|WP_Error Array of `WP_Term` objects, if cached.
* False if cache is empty for `$taxonomy` and `$id`.
* WP_Error if get_term() returns an error object for any term.
*/
function get_object_term_cache( $id, $taxonomy ) {
$_term_ids = wp_cache_get( $id, "{$taxonomy}_relationships" );
// We leave the priming of relationship caches to upstream functions.
if ( false === $_term_ids ) {
return false;
}
// Backward compatibility for if a plugin is putting objects into the cache, rather than IDs.
$term_ids = array();
foreach ( $_term_ids as $term_id ) {
if ( is_numeric( $term_id ) ) {
$term_ids[] = (int) $term_id;
} elseif ( isset( $term_id->term_id ) ) {
$term_ids[] = (int) $term_id->term_id;
}
}
// Fill the term objects.
_prime_term_caches( $term_ids );
$terms = array();
foreach ( $term_ids as $term_id ) {
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
$terms[] = $term;
}
return $terms;
}
/**
* Updates the cache for the given term object ID(s).
*
* Note: Due to performance concerns, great care should be taken to only update
* term caches when necessary. Processing time can increase exponentially depending
* on both the number of passed term IDs and the number of taxonomies those terms
* belong to.
*
* Caches will only be updated for terms not already cached.
*
* @since 2.3.0
*
* @param string|int[] $object_ids Comma-separated list or array of term object IDs.
* @param string|string[] $object_type The taxonomy object type or array of the same.
* @return void|false Void on success or if the `$object_ids` parameter is empty,
* false if all of the terms in `$object_ids` are already cached.
*/
function update_object_term_cache( $object_ids, $object_type ) {
if ( empty( $object_ids ) ) {
return;
}
if ( ! is_array( $object_ids ) ) {
$object_ids = explode( ',', $object_ids );
}
$object_ids = array_map( 'intval', $object_ids );
$non_cached_ids = array();
$taxonomies = get_object_taxonomies( $object_type );
foreach ( $taxonomies as $taxonomy ) {
$cache_values = wp_cache_get_multiple( (array) $object_ids, "{$taxonomy}_relationships" );
foreach ( $cache_values as $id => $value ) {
if ( false === $value ) {
$non_cached_ids[] = $id;
}
}
}
if ( empty( $non_cached_ids ) ) {
return false;
}
$non_cached_ids = array_unique( $non_cached_ids );
$terms = wp_get_object_terms(
$non_cached_ids,
$taxonomies,
array(
'fields' => 'all_with_object_id',
'orderby' => 'name',
'update_term_meta_cache' => false,
)
);
$object_terms = array();
foreach ( (array) $terms as $term ) {
$object_terms[ $term->object_id ][ $term->taxonomy ][] = $term->term_id;
}
foreach ( $non_cached_ids as $id ) {
foreach ( $taxonomies as $taxonomy ) {
if ( ! isset( $object_terms[ $id ][ $taxonomy ] ) ) {
if ( ! isset( $object_terms[ $id ] ) ) {
$object_terms[ $id ] = array();
}
$object_terms[ $id ][ $taxonomy ] = array();
}
}
}
$cache_values = array();
foreach ( $object_terms as $id => $value ) {
foreach ( $value as $taxonomy => $terms ) {
$cache_values[ $taxonomy ][ $id ] = $terms;
}
}
foreach ( $cache_values as $taxonomy => $data ) {
wp_cache_add_multiple( $data, "{$taxonomy}_relationships" );
}
}
/**
* Updates terms in cache.
*
* @since 2.3.0
*
* @param WP_Term[] $terms Array of term objects to change.
* @param string $taxonomy Not used.
*/
function update_term_cache( $terms, $taxonomy = '' ) {
$data = array();
foreach ( (array) $terms as $term ) {
// Create a copy in case the array was passed by reference.
$_term = clone $term;
// Object ID should not be cached.
unset( $_term->object_id );
$data[ $term->term_id ] = $_term;
}
wp_cache_add_multiple( $data, 'terms' );
}
//
// Private.
//
/**
* Retrieves children of taxonomy as term IDs.
*
* @access private
* @since 2.3.0
*
* @param string $taxonomy Taxonomy name.
* @return array Empty if $taxonomy isn't hierarchical or returns children as term IDs.
*/
function _get_term_hierarchy( $taxonomy ) {
if ( ! is_taxonomy_hierarchical( $taxonomy ) ) {
return array();
}
$children = get_option( "{$taxonomy}_children" );
if ( is_array( $children ) ) {
return $children;
}
$children = array();
$terms = get_terms(
array(
'taxonomy' => $taxonomy,
'get' => 'all',
'orderby' => 'id',
'fields' => 'id=>parent',
'update_term_meta_cache' => false,
)
);
foreach ( $terms as $term_id => $parent ) {
if ( $parent > 0 ) {
$children[ $parent ][] = $term_id;
}
}
update_option( "{$taxonomy}_children", $children );
return $children;
}
/**
* Gets the subset of $terms that are descendants of $term_id.
*
* If `$terms` is an array of objects, then _get_term_children() returns an array of objects.
* If `$terms` is an array of IDs, then _get_term_children() returns an array of IDs.
*
* @access private
* @since 2.3.0
*
* @param int $term_id The ancestor term: all returned terms should be descendants of `$term_id`.
* @param array $terms The set of terms - either an array of term objects or term IDs - from which those that
* are descendants of $term_id will be chosen.
* @param string $taxonomy The taxonomy which determines the hierarchy of the terms.
* @param array $ancestors Optional. Term ancestors that have already been identified. Passed by reference, to keep
* track of found terms when recursing the hierarchy. The array of located ancestors is used
* to prevent infinite recursion loops. For performance, `term_ids` are used as array keys,
* with 1 as value. Default empty array.
* @return array|WP_Error The subset of $terms that are descendants of $term_id.
*/
function _get_term_children( $term_id, $terms, $taxonomy, &$ancestors = array() ) {
$empty_array = array();
if ( empty( $terms ) ) {
return $empty_array;
}
$term_id = (int) $term_id;
$term_list = array();
$has_children = _get_term_hierarchy( $taxonomy );
if ( $term_id && ! isset( $has_children[ $term_id ] ) ) {
return $empty_array;
}
// Include the term itself in the ancestors array, so we can properly detect when a loop has occurred.
if ( empty( $ancestors ) ) {
$ancestors[ $term_id ] = 1;
}
foreach ( (array) $terms as $term ) {
$use_id = false;
if ( ! is_object( $term ) ) {
$term = get_term( $term, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
$use_id = true;
}
// Don't recurse if we've already identified the term as a child - this indicates a loop.
if ( isset( $ancestors[ $term->term_id ] ) ) {
continue;
}
if ( (int) $term->parent === $term_id ) {
if ( $use_id ) {
$term_list[] = $term->term_id;
} else {
$term_list[] = $term;
}
if ( ! isset( $has_children[ $term->term_id ] ) ) {
continue;
}
$ancestors[ $term->term_id ] = 1;
$children = _get_term_children( $term->term_id, $terms, $taxonomy, $ancestors );
if ( $children ) {
$term_list = array_merge( $term_list, $children );
}
}
}
return $term_list;
}
/**
* Adds count of children to parent count.
*
* Recalculates term counts by including items from child terms. Assumes all
* relevant children are already in the $terms argument.
*
* @access private
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param object[]|WP_Term[] $terms List of term objects (passed by reference).
* @param string $taxonomy Term context.
*/
function _pad_term_counts( &$terms, $taxonomy ) {
global $wpdb;
// This function only works for hierarchical taxonomies like post categories.
if ( ! is_taxonomy_hierarchical( $taxonomy ) ) {
return;
}
$term_hier = _get_term_hierarchy( $taxonomy );
if ( empty( $term_hier ) ) {
return;
}
$term_items = array();
$terms_by_id = array();
$term_ids = array();
foreach ( (array) $terms as $key => $term ) {
$terms_by_id[ $term->term_id ] = & $terms[ $key ];
$term_ids[ $term->term_taxonomy_id ] = $term->term_id;
}
// Get the object and term IDs and stick them in a lookup table.
$tax_obj = get_taxonomy( $taxonomy );
$object_types = esc_sql( $tax_obj->object_type );
$results = $wpdb->get_results( "SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships INNER JOIN $wpdb->posts ON object_id = ID WHERE term_taxonomy_id IN (" . implode( ',', array_keys( $term_ids ) ) . ") AND post_type IN ('" . implode( "', '", $object_types ) . "') AND post_status = 'publish'" );
foreach ( $results as $row ) {
$id = $term_ids[ $row->term_taxonomy_id ];
$term_items[ $id ][ $row->object_id ] = isset( $term_items[ $id ][ $row->object_id ] ) ? ++$term_items[ $id ][ $row->object_id ] : 1;
}
// Touch every ancestor's lookup row for each post in each term.
foreach ( $term_ids as $term_id ) {
$child = $term_id;
$ancestors = array();
while ( ! empty( $terms_by_id[ $child ] ) && $parent = $terms_by_id[ $child ]->parent ) {
$ancestors[] = $child;
if ( ! empty( $term_items[ $term_id ] ) ) {
foreach ( $term_items[ $term_id ] as $item_id => $touches ) {
$term_items[ $parent ][ $item_id ] = isset( $term_items[ $parent ][ $item_id ] ) ? ++$term_items[ $parent ][ $item_id ] : 1;
}
}
$child = $parent;
if ( in_array( $parent, $ancestors, true ) ) {
break;
}
}
}
// Transfer the touched cells.
foreach ( (array) $term_items as $id => $items ) {
if ( isset( $terms_by_id[ $id ] ) ) {
$terms_by_id[ $id ]->count = count( $items );
}
}
}
/**
* Adds any terms from the given IDs to the cache that do not already exist in cache.
*
* @since 4.6.0
* @since 6.1.0 This function is no longer marked as "private".
* @since 6.3.0 Use wp_lazyload_term_meta() for lazy-loading of term meta.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $term_ids Array of term IDs.
* @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true.
*/
function _prime_term_caches( $term_ids, $update_meta_cache = true ) {
global $wpdb;
$non_cached_ids = _get_non_cached_ids( $term_ids, 'terms' );
if ( ! empty( $non_cached_ids ) ) {
$fresh_terms = $wpdb->get_results( sprintf( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE t.term_id IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) );
update_term_cache( $fresh_terms );
}
if ( $update_meta_cache ) {
wp_lazyload_term_meta( $term_ids );
}
}
//
// Default callbacks.
//
/**
* Updates term count based on object types of the current taxonomy.
*
* Private function for the default callback for post_tag and category
* taxonomies.
*
* @access private
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int[] $terms List of term taxonomy IDs.
* @param WP_Taxonomy $taxonomy Current taxonomy object of terms.
*/
function _update_post_term_count( $terms, $taxonomy ) {
global $wpdb;
$object_types = (array) $taxonomy->object_type;
foreach ( $object_types as &$object_type ) {
list( $object_type ) = explode( ':', $object_type );
}
$object_types = array_unique( $object_types );
$check_attachments = array_search( 'attachment', $object_types, true );
if ( false !== $check_attachments ) {
unset( $object_types[ $check_attachments ] );
$check_attachments = true;
}
if ( $object_types ) {
$object_types = esc_sql( array_filter( $object_types, 'post_type_exists' ) );
}
$post_statuses = array( 'publish' );
/**
* Filters the post statuses for updating the term count.
*
* @since 5.7.0
*
* @param string[] $post_statuses List of post statuses to include in the count. Default is 'publish'.
* @param WP_Taxonomy $taxonomy Current taxonomy object.
*/
$post_statuses = esc_sql( apply_filters( 'update_post_term_count_statuses', $post_statuses, $taxonomy ) );
foreach ( (array) $terms as $tt_id ) {
$count = 0;
// Attachments can be 'inherit' status, we need to base count off the parent's status if so.
if ( $check_attachments ) {
// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedDynamicPlaceholderGeneration
$count += (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts p1 WHERE p1.ID = $wpdb->term_relationships.object_id AND ( post_status IN ('" . implode( "', '", $post_statuses ) . "') OR ( post_status = 'inherit' AND post_parent > 0 AND ( SELECT post_status FROM $wpdb->posts WHERE ID = p1.post_parent ) IN ('" . implode( "', '", $post_statuses ) . "') ) ) AND post_type = 'attachment' AND term_taxonomy_id = %d", $tt_id ) );
}
if ( $object_types ) {
// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedDynamicPlaceholderGeneration
$count += (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status IN ('" . implode( "', '", $post_statuses ) . "') AND post_type IN ('" . implode( "', '", $object_types ) . "') AND term_taxonomy_id = %d", $tt_id ) );
}
/**
* Fires when a term count is calculated, before it is updated in the database.
*
* @since 6.9.0
*
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy_name Taxonomy slug.
* @param int $count Term count.
*/
do_action( 'update_term_count', $tt_id, $taxonomy->name, $count );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $tt_id ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy->name );
}
}
/**
* Updates term count based on number of objects.
*
* Default callback for the 'link_category' taxonomy.
*
* @since 3.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int[] $terms List of term taxonomy IDs.
* @param WP_Taxonomy $taxonomy Current taxonomy object of terms.
*/
function _update_generic_term_count( $terms, $taxonomy ) {
global $wpdb;
foreach ( (array) $terms as $term ) {
$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'update_term_count', $term, $taxonomy->name, $count );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
/** This action is documented in wp-includes/taxonomy.php */
do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
/**
* Creates a new term for a term_taxonomy item that currently shares its term
* with another term_taxonomy.
*
* @ignore
* @since 4.2.0
* @since 4.3.0 Introduced `$record` parameter. Also, `$term_id` and
* `$term_taxonomy_id` can now accept objects.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|object $term_id ID of the shared term, or the shared term object.
* @param int|object $term_taxonomy_id ID of the term_taxonomy item to receive a new term, or the term_taxonomy object
* (corresponding to a row from the term_taxonomy table).
* @param bool $record Whether to record data about the split term in the options table. The recording
* process has the potential to be resource-intensive, so during batch operations
* it can be beneficial to skip inline recording and do it just once, after the
* batch is processed. Only set this to `false` if you know what you are doing.
* Default: true.
* @return int|WP_Error When the current term does not need to be split (or cannot be split on the current
* database schema), `$term_id` is returned. When the term is successfully split, the
* new term_id is returned. A WP_Error is returned for miscellaneous errors.
*/
function _split_shared_term( $term_id, $term_taxonomy_id, $record = true ) {
global $wpdb;
if ( is_object( $term_id ) ) {
$shared_term = $term_id;
$term_id = (int) $shared_term->term_id;
}
if ( is_object( $term_taxonomy_id ) ) {
$term_taxonomy = $term_taxonomy_id;
$term_taxonomy_id = (int) $term_taxonomy->term_taxonomy_id;
}
// If there are no shared term_taxonomy rows, there's nothing to do here.
$shared_tt_count = (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy tt WHERE tt.term_id = %d AND tt.term_taxonomy_id != %d", $term_id, $term_taxonomy_id ) );
if ( ! $shared_tt_count ) {
return $term_id;
}
/*
* Verify that the term_taxonomy_id passed to the function is actually associated with the term_id.
* If there's a mismatch, it may mean that the term is already split. Return the actual term_id from the db.
*/
$check_term_id = (int) $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $term_taxonomy_id ) );
if ( $check_term_id !== $term_id ) {
return $check_term_id;
}
// Pull up data about the currently shared slug, which we'll use to populate the new one.
if ( empty( $shared_term ) ) {
$shared_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.* FROM $wpdb->terms t WHERE t.term_id = %d", $term_id ) );
}
$new_term_data = array(
'name' => $shared_term->name,
'slug' => $shared_term->slug,
'term_group' => $shared_term->term_group,
);
if ( false === $wpdb->insert( $wpdb->terms, $new_term_data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not split shared term.' ), $wpdb->last_error );
}
$new_term_id = (int) $wpdb->insert_id;
// Update the existing term_taxonomy to point to the newly created term.
$wpdb->update(
$wpdb->term_taxonomy,
array( 'term_id' => $new_term_id ),
array( 'term_taxonomy_id' => $term_taxonomy_id )
);
// Reassign child terms to the new parent.
if ( empty( $term_taxonomy ) ) {
$term_taxonomy = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $term_taxonomy_id ) );
}
$children_tt_ids = $wpdb->get_col( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_taxonomy WHERE parent = %d AND taxonomy = %s", $term_id, $term_taxonomy->taxonomy ) );
if ( ! empty( $children_tt_ids ) ) {
foreach ( $children_tt_ids as $child_tt_id ) {
$wpdb->update(
$wpdb->term_taxonomy,
array( 'parent' => $new_term_id ),
array( 'term_taxonomy_id' => $child_tt_id )
);
clean_term_cache( (int) $child_tt_id, '', false );
}
} else {
// If the term has no children, we must force its taxonomy cache to be rebuilt separately.
clean_term_cache( $new_term_id, $term_taxonomy->taxonomy, false );
}
clean_term_cache( $term_id, $term_taxonomy->taxonomy, false );
/*
* Taxonomy cache clearing is delayed to avoid race conditions that may occur when
* regenerating the taxonomy's hierarchy tree.
*/
$taxonomies_to_clean = array( $term_taxonomy->taxonomy );
// Clean the cache for term taxonomies formerly shared with the current term.
$shared_term_taxonomies = $wpdb->get_col( $wpdb->prepare( "SELECT taxonomy FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
$taxonomies_to_clean = array_merge( $taxonomies_to_clean, $shared_term_taxonomies );
foreach ( $taxonomies_to_clean as $taxonomy_to_clean ) {
clean_taxonomy_cache( $taxonomy_to_clean );
}
// Keep a record of term_ids that have been split, keyed by old term_id. See wp_get_split_term().
if ( $record ) {
$split_term_data = get_option( '_split_terms', array() );
if ( ! isset( $split_term_data[ $term_id ] ) ) {
$split_term_data[ $term_id ] = array();
}
$split_term_data[ $term_id ][ $term_taxonomy->taxonomy ] = $new_term_id;
update_option( '_split_terms', $split_term_data );
}
// If we've just split the final shared term, set the "finished" flag.
$shared_terms_exist = $wpdb->get_results(
"SELECT tt.term_id, t.*, count(*) as term_tt_count FROM {$wpdb->term_taxonomy} tt
LEFT JOIN {$wpdb->terms} t ON t.term_id = tt.term_id
GROUP BY t.term_id
HAVING term_tt_count > 1
LIMIT 1"
);
if ( ! $shared_terms_exist ) {
update_option( 'finished_splitting_shared_terms', true );
}
/**
* Fires after a previously shared taxonomy term is split into two separate terms.
*
* @since 4.2.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
do_action( 'split_shared_term', $term_id, $new_term_id, $term_taxonomy_id, $term_taxonomy->taxonomy );
return $new_term_id;
}
/**
* Splits a batch of shared taxonomy terms.
*
* @since 4.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function _wp_batch_split_terms() {
global $wpdb;
$lock_name = 'term_split.lock';
// Try to lock.
$lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'off') /* LOCK */", $lock_name, time() ) );
if ( ! $lock_result ) {
$lock_result = get_option( $lock_name );
// Bail if we were unable to create a lock, or if the existing lock is still valid.
if ( ! $lock_result || ( $lock_result > ( time() - HOUR_IN_SECONDS ) ) ) {
wp_schedule_single_event( time() + ( 5 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
return;
}
}
// Update the lock, as by this point we've definitely got a lock, just need to fire the actions.
update_option( $lock_name, time() );
// Get a list of shared terms (those with more than one associated row in term_taxonomy).
$shared_terms = $wpdb->get_results(
"SELECT tt.term_id, t.*, count(*) as term_tt_count FROM {$wpdb->term_taxonomy} tt
LEFT JOIN {$wpdb->terms} t ON t.term_id = tt.term_id
GROUP BY t.term_id
HAVING term_tt_count > 1
LIMIT 10"
);
// No more terms, we're done here.
if ( ! $shared_terms ) {
update_option( 'finished_splitting_shared_terms', true );
delete_option( $lock_name );
return;
}
// Shared terms found? We'll need to run this script again.
wp_schedule_single_event( time() + ( 2 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
// Rekey shared term array for faster lookups.
$_shared_terms = array();
foreach ( $shared_terms as $shared_term ) {
$term_id = (int) $shared_term->term_id;
$_shared_terms[ $term_id ] = $shared_term;
}
$shared_terms = $_shared_terms;
// Get term taxonomy data for all shared terms.
$shared_term_ids = implode( ',', array_keys( $shared_terms ) );
$shared_tts = $wpdb->get_results( "SELECT * FROM {$wpdb->term_taxonomy} WHERE `term_id` IN ({$shared_term_ids})" );
// Split term data recording is slow, so we do it just once, outside the loop.
$split_term_data = get_option( '_split_terms', array() );
$skipped_first_term = array();
$taxonomies = array();
foreach ( $shared_tts as $shared_tt ) {
$term_id = (int) $shared_tt->term_id;
// Don't split the first tt belonging to a given term_id.
if ( ! isset( $skipped_first_term[ $term_id ] ) ) {
$skipped_first_term[ $term_id ] = 1;
continue;
}
if ( ! isset( $split_term_data[ $term_id ] ) ) {
$split_term_data[ $term_id ] = array();
}
// Keep track of taxonomies whose hierarchies need flushing.
if ( ! isset( $taxonomies[ $shared_tt->taxonomy ] ) ) {
$taxonomies[ $shared_tt->taxonomy ] = 1;
}
// Split the term.
$split_term_data[ $term_id ][ $shared_tt->taxonomy ] = _split_shared_term( $shared_terms[ $term_id ], $shared_tt, false );
}
// Rebuild the cached hierarchy for each affected taxonomy.
foreach ( array_keys( $taxonomies ) as $tax ) {
delete_option( "{$tax}_children" );
_get_term_hierarchy( $tax );
}
update_option( '_split_terms', $split_term_data );
delete_option( $lock_name );
}
/**
* In order to avoid the _wp_batch_split_terms() job being accidentally removed,
* checks that it's still scheduled while we haven't finished splitting terms.
*
* @ignore
* @since 4.3.0
*/
function _wp_check_for_scheduled_split_terms() {
if ( ! get_option( 'finished_splitting_shared_terms' ) && ! wp_next_scheduled( 'wp_split_shared_term_batch' ) ) {
wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'wp_split_shared_term_batch' );
}
}
/**
* Checks default categories when a term gets split to see if any of them need to be updated.
*
* @ignore
* @since 4.2.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_default_terms( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
if ( 'category' !== $taxonomy ) {
return;
}
foreach ( array( 'default_category', 'default_link_category', 'default_email_category' ) as $option ) {
if ( (int) get_option( $option, -1 ) === $term_id ) {
update_option( $option, $new_term_id );
}
}
}
/**
* Checks menu items when a term gets split to see if any of them need to be updated.
*
* @ignore
* @since 4.2.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_terms_in_menus( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
global $wpdb;
$post_ids = $wpdb->get_col(
$wpdb->prepare(
"SELECT m1.post_id
FROM {$wpdb->postmeta} AS m1
INNER JOIN {$wpdb->postmeta} AS m2 ON ( m2.post_id = m1.post_id )
INNER JOIN {$wpdb->postmeta} AS m3 ON ( m3.post_id = m1.post_id )
WHERE ( m1.meta_key = '_menu_item_type' AND m1.meta_value = 'taxonomy' )
AND ( m2.meta_key = '_menu_item_object' AND m2.meta_value = %s )
AND ( m3.meta_key = '_menu_item_object_id' AND m3.meta_value = %d )",
$taxonomy,
$term_id
)
);
if ( $post_ids ) {
foreach ( $post_ids as $post_id ) {
update_post_meta( $post_id, '_menu_item_object_id', $new_term_id, $term_id );
}
}
}
/**
* If the term being split is a nav_menu, changes associations.
*
* @ignore
* @since 4.3.0
*
* @param int $term_id ID of the formerly shared term.
* @param int $new_term_id ID of the new term created for the $term_taxonomy_id.
* @param int $term_taxonomy_id ID for the term_taxonomy row affected by the split.
* @param string $taxonomy Taxonomy for the split term.
*/
function _wp_check_split_nav_menu_terms( $term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
if ( 'nav_menu' !== $taxonomy ) {
return;
}
// Update menu locations.
$locations = get_nav_menu_locations();
foreach ( $locations as $location => $menu_id ) {
if ( $term_id === $menu_id ) {
$locations[ $location ] = $new_term_id;
}
}
set_theme_mod( 'nav_menu_locations', $locations );
}
/**
* Gets data about terms that previously shared a single term_id, but have since been split.
*
* @since 4.2.0
*
* @param int $old_term_id Term ID. This is the old, pre-split term ID.
* @return array Array of new term IDs, keyed by taxonomy.
*/
function wp_get_split_terms( $old_term_id ) {
$split_terms = get_option( '_split_terms', array() );
$terms = array();
if ( isset( $split_terms[ $old_term_id ] ) ) {
$terms = $split_terms[ $old_term_id ];
}
return $terms;
}
/**
* Gets the new term ID corresponding to a previously split term.
*
* @since 4.2.0
*
* @param int $old_term_id Term ID. This is the old, pre-split term ID.
* @param string $taxonomy Taxonomy that the term belongs to.
* @return int|false If a previously split term is found corresponding to the old term_id and taxonomy,
* the new term_id will be returned. If no previously split term is found matching
* the parameters, returns false.
*/
function wp_get_split_term( $old_term_id, $taxonomy ) {
$split_terms = wp_get_split_terms( $old_term_id );
$term_id = false;
if ( isset( $split_terms[ $taxonomy ] ) ) {
$term_id = (int) $split_terms[ $taxonomy ];
}
return $term_id;
}
/**
* Determines whether a term is shared between multiple taxonomies.
*
* Shared taxonomy terms began to be split in 4.3, but failed cron tasks or
* other delays in upgrade routines may cause shared terms to remain.
*
* @since 4.4.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term_id Term ID.
* @return bool Returns false if a term is not shared between multiple taxonomies or
* if splitting shared taxonomy terms is finished.
*/
function wp_term_is_shared( $term_id ) {
global $wpdb;
if ( get_option( 'finished_splitting_shared_terms' ) ) {
return false;
}
$tt_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
return $tt_count > 1;
}
/**
* Generates a permalink for a taxonomy term archive.
*
* @since 2.5.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param WP_Term|int|string $term The term object, ID, or slug whose link will be retrieved.
* @param string $taxonomy Optional. Taxonomy. Default empty.
* @return string|WP_Error URL of the taxonomy term archive on success, WP_Error if term does not exist.
*/
function get_term_link( $term, $taxonomy = '' ) {
global $wp_rewrite;
if ( ! is_object( $term ) ) {
if ( is_int( $term ) ) {
$term = get_term( $term, $taxonomy );
} else {
$term = get_term_by( 'slug', $term, $taxonomy );
}
}
if ( ! is_object( $term ) ) {
$term = new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
}
if ( is_wp_error( $term ) ) {
return $term;
}
$taxonomy = $term->taxonomy;
$termlink = $wp_rewrite->get_extra_permastruct( $taxonomy );
/**
* Filters the permalink structure for a term before token replacement occurs.
*
* @since 4.9.0
*
* @param string $termlink The permalink structure for the term's taxonomy.
* @param WP_Term $term The term object.
*/
$termlink = apply_filters( 'pre_term_link', $termlink, $term );
$slug = $term->slug;
$t = get_taxonomy( $taxonomy );
if ( empty( $termlink ) ) {
if ( 'category' === $taxonomy ) {
$termlink = '?cat=' . $term->term_id;
} elseif ( $t->query_var ) {
$termlink = "?$t->query_var=$slug";
} else {
$termlink = "?taxonomy=$taxonomy&term=$slug";
}
$termlink = home_url( $termlink );
} else {
if ( ! empty( $t->rewrite['hierarchical'] ) ) {
$hierarchical_slugs = array();
$ancestors = get_ancestors( $term->term_id, $taxonomy, 'taxonomy' );
foreach ( (array) $ancestors as $ancestor ) {
$ancestor_term = get_term( $ancestor, $taxonomy );
$hierarchical_slugs[] = $ancestor_term->slug;
}
$hierarchical_slugs = array_reverse( $hierarchical_slugs );
$hierarchical_slugs[] = $slug;
$termlink = str_replace( "%$taxonomy%", implode( '/', $hierarchical_slugs ), $termlink );
} else {
$termlink = str_replace( "%$taxonomy%", $slug, $termlink );
}
$termlink = home_url( user_trailingslashit( $termlink, 'category' ) );
}
// Back compat filters.
if ( 'post_tag' === $taxonomy ) {
/**
* Filters the tag link.
*
* @since 2.3.0
* @since 2.5.0 Deprecated in favor of {@see 'term_link'} filter.
* @since 5.4.1 Restored (un-deprecated).
*
* @param string $termlink Tag link URL.
* @param int $term_id Term ID.
*/
$termlink = apply_filters( 'tag_link', $termlink, $term->term_id );
} elseif ( 'category' === $taxonomy ) {
/**
* Filters the category link.
*
* @since 1.5.0
* @since 2.5.0 Deprecated in favor of {@see 'term_link'} filter.
* @since 5.4.1 Restored (un-deprecated).
*
* @param string $termlink Category link URL.
* @param int $term_id Term ID.
*/
$termlink = apply_filters( 'category_link', $termlink, $term->term_id );
}
/**
* Filters the term link.
*
* @since 2.5.0
*
* @param string $termlink Term link URL.
* @param WP_Term $term Term object.
* @param string $taxonomy Taxonomy slug.
*/
return apply_filters( 'term_link', $termlink, $term, $taxonomy );
}
/**
* Displays the taxonomies of a post with available options.
*
* This function can be used within the loop to display the taxonomies for a
* post without specifying the Post ID. You can also use it outside the Loop to
* display the taxonomies for a specific post.
*
* @since 2.5.0
*
* @param array $args {
* Arguments about which post to use and how to format the output. Shares all of the arguments
* supported by get_the_taxonomies(), in addition to the following.
*
* @type int|WP_Post $post Post ID or object to get taxonomies of. Default current post.
* @type string $before Displays before the taxonomies. Default empty string.
* @type string $sep Separates each taxonomy. Default is a space.
* @type string $after Displays after the taxonomies. Default empty string.
* }
*/
function the_taxonomies( $args = array() ) {
$defaults = array(
'post' => 0,
'before' => '',
'sep' => ' ',
'after' => '',
);
$parsed_args = wp_parse_args( $args, $defaults );
echo $parsed_args['before'] . implode( $parsed_args['sep'], get_the_taxonomies( $parsed_args['post'], $parsed_args ) ) . $parsed_args['after'];
}
/**
* Retrieves all taxonomies associated with a post.
*
* This function can be used within the loop. It will also return an array of
* the taxonomies with links to the taxonomy and name.
*
* @since 2.5.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @param array $args {
* Optional. Arguments about how to format the list of taxonomies. Default empty array.
*
* @type string $template Template for displaying a taxonomy label and list of terms.
* Default is "Label: Terms."
* @type string $term_template Template for displaying a single term in the list. Default is the term name
* linked to its archive.
* }
* @return string[] List of taxonomies.
*/
function get_the_taxonomies( $post = 0, $args = array() ) {
$post = get_post( $post );
$args = wp_parse_args(
$args,
array(
/* translators: %s: Taxonomy label, %l: List of terms formatted as per $term_template. */
'template' => __( '%s: %l.' ),
'term_template' => '%2$s',
)
);
$taxonomies = array();
if ( ! $post ) {
return $taxonomies;
}
foreach ( get_object_taxonomies( $post ) as $taxonomy ) {
$t = (array) get_taxonomy( $taxonomy );
if ( empty( $t['label'] ) ) {
$t['label'] = $taxonomy;
}
if ( empty( $t['args'] ) ) {
$t['args'] = array();
}
if ( empty( $t['template'] ) ) {
$t['template'] = $args['template'];
}
if ( empty( $t['term_template'] ) ) {
$t['term_template'] = $args['term_template'];
}
$terms = get_object_term_cache( $post->ID, $taxonomy );
if ( false === $terms ) {
$terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
}
$links = array();
foreach ( $terms as $term ) {
$links[] = wp_sprintf( $t['term_template'], esc_attr( get_term_link( $term ) ), $term->name );
}
if ( $links ) {
$taxonomies[ $taxonomy ] = wp_sprintf( $t['template'], $t['label'], $links, $terms );
}
}
return $taxonomies;
}
/**
* Retrieves all taxonomy names for the given post.
*
* @since 2.5.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return string[] An array of all taxonomy names for the given post.
*/
function get_post_taxonomies( $post = 0 ) {
$post = get_post( $post );
return get_object_taxonomies( $post );
}
/**
* Determines if the given object is associated with any of the given terms.
*
* The given terms are checked against the object's terms' term_ids, names and slugs.
* Terms given as integers will only be checked against the object's terms' term_ids.
* If no terms are given, determines if object is associated with any terms in the given taxonomy.
*
* @since 2.7.0
*
* @param int $object_id ID of the object (post ID, link ID, ...).
* @param string $taxonomy Single taxonomy name.
* @param int|string|int[]|string[] $terms Optional. Term ID, name, slug, or array of such
* to check against. Default null.
* @return bool|WP_Error WP_Error on input error.
*/
function is_object_in_term( $object_id, $taxonomy, $terms = null ) {
$object_id = (int) $object_id;
if ( ! $object_id ) {
return new WP_Error( 'invalid_object', __( 'Invalid object ID.' ) );
}
$object_terms = get_object_term_cache( $object_id, $taxonomy );
if ( false === $object_terms ) {
$object_terms = wp_get_object_terms( $object_id, $taxonomy, array( 'update_term_meta_cache' => false ) );
if ( is_wp_error( $object_terms ) ) {
return $object_terms;
}
wp_cache_set( $object_id, wp_list_pluck( $object_terms, 'term_id' ), "{$taxonomy}_relationships" );
}
if ( is_wp_error( $object_terms ) ) {
return $object_terms;
}
if ( empty( $object_terms ) ) {
return false;
}
if ( empty( $terms ) ) {
return true;
}
$terms = (array) $terms;
$ints = array_filter( $terms, 'is_int' );
if ( $ints ) {
$strs = array_diff( $terms, $ints );
} else {
$strs =& $terms;
}
foreach ( $object_terms as $object_term ) {
// If term is an int, check against term_ids only.
if ( $ints && in_array( $object_term->term_id, $ints, true ) ) {
return true;
}
if ( $strs ) {
// Only check numeric strings against term_id, to avoid false matches due to type juggling.
$numeric_strs = array_map( 'intval', array_filter( $strs, 'is_numeric' ) );
if ( in_array( $object_term->term_id, $numeric_strs, true ) ) {
return true;
}
if ( in_array( $object_term->name, $strs, true ) ) {
return true;
}
if ( in_array( $object_term->slug, $strs, true ) ) {
return true;
}
}
}
return false;
}
/**
* Determines if the given object type is associated with the given taxonomy.
*
* @since 3.0.0
*
* @param string $object_type Object type string.
* @param string $taxonomy Single taxonomy name.
* @return bool True if object is associated with the taxonomy, otherwise false.
*/
function is_object_in_taxonomy( $object_type, $taxonomy ) {
$taxonomies = get_object_taxonomies( $object_type );
if ( empty( $taxonomies ) ) {
return false;
}
return in_array( $taxonomy, $taxonomies, true );
}
/**
* Gets an array of ancestor IDs for a given object.
*
* @since 3.1.0
* @since 4.1.0 Introduced the `$resource_type` argument.
*
* @param int $object_id Optional. The ID of the object. Default 0.
* @param string $object_type Optional. The type of object for which we'll be retrieving
* ancestors. Accepts a post type or a taxonomy name. Default empty.
* @param string $resource_type Optional. Type of resource $object_type is. Accepts 'post_type'
* or 'taxonomy'. Default empty.
* @return int[] An array of IDs of ancestors from lowest to highest in the hierarchy.
*/
function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) {
$object_id = (int) $object_id;
$ancestors = array();
if ( empty( $object_id ) ) {
/** This filter is documented in wp-includes/taxonomy.php */
return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
}
if ( ! $resource_type ) {
if ( is_taxonomy_hierarchical( $object_type ) ) {
$resource_type = 'taxonomy';
} elseif ( post_type_exists( $object_type ) ) {
$resource_type = 'post_type';
}
}
if ( 'taxonomy' === $resource_type ) {
$term = get_term( $object_id, $object_type );
while ( ! is_wp_error( $term ) && ! empty( $term->parent ) && ! in_array( $term->parent, $ancestors, true ) ) {
$ancestors[] = (int) $term->parent;
$term = get_term( $term->parent, $object_type );
}
} elseif ( 'post_type' === $resource_type ) {
$ancestors = get_post_ancestors( $object_id );
}
/**
* Filters a given object's ancestors.
*
* @since 3.1.0
* @since 4.1.1 Introduced the `$resource_type` parameter.
*
* @param int[] $ancestors An array of IDs of object ancestors.
* @param int $object_id Object ID.
* @param string $object_type Type of object.
* @param string $resource_type Type of resource $object_type is.
*/
return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
}
/**
* Returns the term's parent's term ID.
*
* @since 3.1.0
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @return int|false Parent term ID on success, false on failure.
*/
function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) {
$term = get_term( $term_id, $taxonomy );
if ( ! $term || is_wp_error( $term ) ) {
return false;
}
return (int) $term->parent;
}
/**
* Checks the given subset of the term hierarchy for hierarchy loops.
* Prevents loops from forming and breaks those that it finds.
*
* Attached to the {@see 'wp_update_term_parent'} filter.
*
* @since 3.1.0
*
* @param int $parent_term `term_id` of the parent for the term we're checking.
* @param int $term_id The term we're checking.
* @param string $taxonomy The taxonomy of the term we're checking.
* @return int The new parent for the term.
*/
function wp_check_term_hierarchy_for_loops( $parent_term, $term_id, $taxonomy ) {
// Nothing fancy here - bail.
if ( ! $parent_term ) {
return 0;
}
// Can't be its own parent.
if ( $parent_term === $term_id ) {
return 0;
}
// Now look for larger loops.
$loop = wp_find_hierarchy_loop( 'wp_get_term_taxonomy_parent_id', $term_id, $parent_term, array( $taxonomy ) );
if ( ! $loop ) {
return $parent_term; // No loop.
}
// Setting $parent_term to the given value causes a loop.
if ( isset( $loop[ $term_id ] ) ) {
return 0;
}
// There's a loop, but it doesn't contain $term_id. Break the loop.
foreach ( array_keys( $loop ) as $loop_member ) {
wp_update_term( $loop_member, $taxonomy, array( 'parent' => 0 ) );
}
return $parent_term;
}
/**
* Determines whether a taxonomy is considered "viewable".
*
* @since 5.1.0
*
* @param string|WP_Taxonomy $taxonomy Taxonomy name or object.
* @return bool Whether the taxonomy should be considered viewable.
*/
function is_taxonomy_viewable( $taxonomy ) {
if ( is_scalar( $taxonomy ) ) {
$taxonomy = get_taxonomy( $taxonomy );
if ( ! $taxonomy ) {
return false;
}
}
return $taxonomy->publicly_queryable;
}
/**
* Determines whether a term is publicly viewable.
*
* A term is considered publicly viewable if its taxonomy is viewable.
*
* @since 6.1.0
*
* @param int|WP_Term $term Term ID or term object.
* @return bool Whether the term is publicly viewable.
*/
function is_term_publicly_viewable( $term ) {
$term = get_term( $term );
if ( ! $term ) {
return false;
}
return is_taxonomy_viewable( $term->taxonomy );
}
/**
* Sets the last changed time for the 'terms' cache group.
*
* @since 5.0.0
*/
function wp_cache_set_terms_last_changed() {
wp_cache_set_last_changed( 'terms' );
}
/**
* Aborts calls to term meta if it is not supported.
*
* @since 5.0.0
*
* @param mixed $check Skip-value for whether to proceed term meta function execution.
* @return mixed Original value of $check, or false if term meta is not supported.
*/
function wp_check_term_meta_support_prefilter( $check ) {
if ( get_option( 'db_version' ) < 34370 ) {
return false;
}
return $check;
}
/**
* Taxonomy API: WP_Term_Query class.
*
* @package WordPress
* @subpackage Taxonomy
* @since 4.6.0
*/
/**
* Class used for querying terms.
*
* @since 4.6.0
*
* @see WP_Term_Query::__construct() for accepted arguments.
*/
#[AllowDynamicProperties]
class WP_Term_Query {
/**
* SQL string used to perform database query.
*
* @since 4.6.0
* @var string
*/
public $request;
/**
* Metadata query container.
*
* @since 4.6.0
* @var WP_Meta_Query A meta query instance.
*/
public $meta_query = false;
/**
* Metadata query clauses.
*
* @since 4.6.0
* @var array
*/
protected $meta_query_clauses;
/**
* SQL query clauses.
*
* @since 4.6.0
* @var array
*/
protected $sql_clauses = array(
'select' => '',
'from' => '',
'where' => array(),
'orderby' => '',
'limits' => '',
);
/**
* Query vars set by the user.
*
* @since 4.6.0
* @var array
*/
public $query_vars;
/**
* Default values for query vars.
*
* @since 4.6.0
* @var array
*/
public $query_var_defaults;
/**
* List of terms located by the query.
*
* @since 4.6.0
* @var array
*/
public $terms;
/**
* Constructor.
*
* Sets up the term query, based on the query vars passed.
*
* @since 4.6.0
* @since 4.6.0 Introduced 'term_taxonomy_id' parameter.
* @since 4.7.0 Introduced 'object_ids' parameter.
* @since 4.9.0 Added 'slug__in' support for 'orderby'.
* @since 5.1.0 Introduced the 'meta_compare_key' parameter.
* @since 5.3.0 Introduced the 'meta_type_key' parameter.
* @since 6.4.0 Introduced the 'cache_results' parameter.
*
* @param string|array $query {
* Optional. Array or query string of term query parameters. Default empty.
*
* @type string|string[] $taxonomy Taxonomy name, or array of taxonomy names, to which results
* should be limited.
* @type int|int[] $object_ids Object ID, or array of object IDs. Results will be
* limited to terms associated with these objects.
* @type string $orderby Field(s) to order terms by. Accepts:
* - Term fields ('name', 'slug', 'term_group', 'term_id', 'id',
* 'description', 'parent', 'term_order'). Unless `$object_ids`
* is not empty, 'term_order' is treated the same as 'term_id'.
* - 'count' to use the number of objects associated with the term.
* - 'include' to match the 'order' of the `$include` param.
* - 'slug__in' to match the 'order' of the `$slug` param.
* - 'meta_value'
* - 'meta_value_num'.
* - The value of `$meta_key`.
* - The array keys of `$meta_query`.
* - 'none' to omit the ORDER BY clause.
* Default 'name'.
* @type string $order Whether to order terms in ascending or descending order.
* Accepts 'ASC' (ascending) or 'DESC' (descending).
* Default 'ASC'.
* @type bool|int $hide_empty Whether to hide terms not assigned to any posts. Accepts
* 1|true or 0|false. Default 1|true.
* @type int[]|string $include Array or comma/space-separated string of term IDs to include.
* Default empty array.
* @type int[]|string $exclude Array or comma/space-separated string of term IDs to exclude.
* If `$include` is non-empty, `$exclude` is ignored.
* Default empty array.
* @type int[]|string $exclude_tree Array or comma/space-separated string of term IDs to exclude
* along with all of their descendant terms. If `$include` is
* non-empty, `$exclude_tree` is ignored. Default empty array.
* @type int|string $number Maximum number of terms to return. Accepts ''|0 (all) or any
* positive number. Default ''|0 (all). Note that `$number` may
* not return accurate results when coupled with `$object_ids`.
* See #41796 for details.
* @type int $offset The number by which to offset the terms query. Default empty.
* @type string $fields Term fields to query for. Accepts:
* - 'all' Returns an array of complete term objects (`WP_Term[]`).
* - 'all_with_object_id' Returns an array of term objects
* with the 'object_id' param (`WP_Term[]`). Works only
* when the `$object_ids` parameter is populated.
* - 'ids' Returns an array of term IDs (`int[]`).
* - 'tt_ids' Returns an array of term taxonomy IDs (`int[]`).
* - 'names' Returns an array of term names (`string[]`).
* - 'slugs' Returns an array of term slugs (`string[]`).
* - 'count' Returns the number of matching terms (`int`).
* - 'id=>parent' Returns an associative array of parent term IDs,
* keyed by term ID (`int[]`).
* - 'id=>name' Returns an associative array of term names,
* keyed by term ID (`string[]`).
* - 'id=>slug' Returns an associative array of term slugs,
* keyed by term ID (`string[]`).
* Default 'all'.
* @type string|string[] $name Name or array of names to return term(s) for.
* Default empty.
* @type string|string[] $slug Slug or array of slugs to return term(s) for.
* Default empty.
* @type int|int[] $term_taxonomy_id Term taxonomy ID, or array of term taxonomy IDs,
* to match when querying terms.
* @type bool $hierarchical Whether to include terms that have non-empty descendants
* (even if `$hide_empty` is set to true). Default true.
* @type string $search Search criteria to match terms. Will be SQL-formatted with
* wildcards before and after. Default empty.
* @type string $name__like Retrieve terms with criteria by which a term is LIKE
* `$name__like`. Default empty.
* @type string $description__like Retrieve terms where the description is LIKE
* `$description__like`. Default empty.
* @type bool $pad_counts Whether to pad the quantity of a term's children in the
* quantity of each term's "count" object variable.
* Default false.
* @type string $get Whether to return terms regardless of ancestry or whether the
* terms are empty. Accepts 'all' or '' (disabled).
* Default ''.
* @type int $child_of Term ID to retrieve child terms of. If multiple taxonomies
* are passed, `$child_of` is ignored. Default 0.
* @type int $parent Parent term ID to retrieve direct-child terms of.
* Default empty.
* @type bool $childless True to limit results to terms that have no children.
* This parameter has no effect on non-hierarchical taxonomies.
* Default false.
* @type string $cache_domain Unique cache key to be produced when this query is stored in
* an object cache. Default 'core'.
* @type bool $cache_results Whether to cache term information. Default true.
* @type bool $update_term_meta_cache Whether to prime meta caches for matched terms. Default true.
* @type string|string[] $meta_key Meta key or keys to filter by.
* @type string|string[] $meta_value Meta value or values to filter by.
* @type string $meta_compare MySQL operator used for comparing the meta value.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_compare_key MySQL operator used for comparing the meta key.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_type MySQL data type that the meta_value column will be CAST to for comparisons.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_type_key MySQL data type that the meta_key column will be CAST to for comparisons.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type array $meta_query An associative array of WP_Meta_Query arguments.
* See WP_Meta_Query::__construct() for accepted values.
* }
*/
public function __construct( $query = '' ) {
$this->query_var_defaults = array(
'taxonomy' => null,
'object_ids' => null,
'orderby' => 'name',
'order' => 'ASC',
'hide_empty' => true,
'include' => array(),
'exclude' => array(),
'exclude_tree' => array(),
'number' => '',
'offset' => '',
'fields' => 'all',
'name' => '',
'slug' => '',
'term_taxonomy_id' => '',
'hierarchical' => true,
'search' => '',
'name__like' => '',
'description__like' => '',
'pad_counts' => false,
'get' => '',
'child_of' => 0,
'parent' => '',
'childless' => false,
'cache_domain' => 'core',
'cache_results' => true,
'update_term_meta_cache' => true,
'meta_query' => '',
'meta_key' => '',
'meta_value' => '',
'meta_type' => '',
'meta_compare' => '',
);
if ( ! empty( $query ) ) {
$this->query( $query );
}
}
/**
* Parse arguments passed to the term query with default query parameters.
*
* @since 4.6.0
*
* @param string|array $query WP_Term_Query arguments. See WP_Term_Query::__construct() for accepted arguments.
*/
public function parse_query( $query = '' ) {
if ( empty( $query ) ) {
$query = $this->query_vars;
}
$taxonomies = isset( $query['taxonomy'] ) ? (array) $query['taxonomy'] : null;
/**
* Filters the terms query default arguments.
*
* Use {@see 'get_terms_args'} to filter the passed arguments.
*
* @since 4.4.0
*
* @param array $defaults An array of default get_terms() arguments.
* @param string[] $taxonomies An array of taxonomy names.
*/
$this->query_var_defaults = apply_filters( 'get_terms_defaults', $this->query_var_defaults, $taxonomies );
$query = wp_parse_args( $query, $this->query_var_defaults );
$query['number'] = absint( $query['number'] );
$query['offset'] = absint( $query['offset'] );
// 'parent' overrides 'child_of'.
if ( 0 < (int) $query['parent'] ) {
$query['child_of'] = false;
}
if ( 'all' === $query['get'] ) {
$query['childless'] = false;
$query['child_of'] = 0;
$query['hide_empty'] = 0;
$query['hierarchical'] = false;
$query['pad_counts'] = false;
}
$query['taxonomy'] = $taxonomies;
$this->query_vars = $query;
/**
* Fires after term query vars have been parsed.
*
* @since 4.6.0
*
* @param WP_Term_Query $query Current instance of WP_Term_Query.
*/
do_action( 'parse_term_query', $this );
}
/**
* Sets up the query and retrieves the results.
*
* The return type varies depending on the value passed to `$args['fields']`. See
* WP_Term_Query::get_terms() for details.
*
* @since 4.6.0
*
* @param string|array $query Array or URL query string of parameters.
* @return WP_Term[]|int[]|string[]|string Array of terms, or number of terms as numeric string
* when 'count' is passed to `$args['fields']`.
*/
public function query( $query ) {
$this->query_vars = wp_parse_args( $query );
return $this->get_terms();
}
/**
* Retrieves the query results.
*
* The return type varies depending on the value passed to `$args['fields']`.
*
* The following will result in an array of `WP_Term` objects being returned:
*
* - 'all'
* - 'all_with_object_id'
*
* The following will result in a numeric string being returned:
*
* - 'count'
*
* The following will result in an array of text strings being returned:
*
* - 'id=>name'
* - 'id=>slug'
* - 'names'
* - 'slugs'
*
* The following will result in an array of numeric strings being returned:
*
* - 'id=>parent'
*
* The following will result in an array of integers being returned:
*
* - 'ids'
* - 'tt_ids'
*
* @since 4.6.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return WP_Term[]|int[]|string[]|string Array of terms, or number of terms as numeric string
* when 'count' is passed to `$args['fields']`.
*/
public function get_terms() {
global $wpdb;
$this->parse_query( $this->query_vars );
$args = &$this->query_vars;
// Set up meta_query so it's available to 'pre_get_terms'.
$this->meta_query = new WP_Meta_Query();
$this->meta_query->parse_query_vars( $args );
/**
* Fires before terms are retrieved.
*
* @since 4.6.0
*
* @param WP_Term_Query $query Current instance of WP_Term_Query (passed by reference).
*/
do_action_ref_array( 'pre_get_terms', array( &$this ) );
$taxonomies = (array) $args['taxonomy'];
// Save queries by not crawling the tree in the case of multiple taxes or a flat tax.
$has_hierarchical_tax = false;
if ( $taxonomies ) {
foreach ( $taxonomies as $_tax ) {
if ( is_taxonomy_hierarchical( $_tax ) ) {
$has_hierarchical_tax = true;
}
}
} else {
// When no taxonomies are provided, assume we have to descend the tree.
$has_hierarchical_tax = true;
}
if ( ! $has_hierarchical_tax ) {
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
// 'parent' overrides 'child_of'.
if ( 0 < (int) $args['parent'] ) {
$args['child_of'] = false;
}
if ( 'all' === $args['get'] ) {
$args['childless'] = false;
$args['child_of'] = 0;
$args['hide_empty'] = 0;
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
/**
* Filters the terms query arguments.
*
* @since 3.1.0
*
* @param array $args An array of get_terms() arguments.
* @param string[] $taxonomies An array of taxonomy names.
*/
$args = apply_filters( 'get_terms_args', $args, $taxonomies );
// Avoid the query if the queried parent/child_of term has no descendants.
$child_of = $args['child_of'];
$parent = $args['parent'];
if ( $child_of ) {
$_parent = $child_of;
} elseif ( $parent ) {
$_parent = $parent;
} else {
$_parent = false;
}
if ( $_parent ) {
$in_hierarchy = false;
foreach ( $taxonomies as $_tax ) {
$hierarchy = _get_term_hierarchy( $_tax );
if ( isset( $hierarchy[ $_parent ] ) ) {
$in_hierarchy = true;
}
}
if ( ! $in_hierarchy ) {
if ( 'count' === $args['fields'] ) {
return 0;
} else {
$this->terms = array();
return $this->terms;
}
}
}
// 'term_order' is a legal sort order only when joining the relationship table.
$_orderby = $this->query_vars['orderby'];
if ( 'term_order' === $_orderby && empty( $this->query_vars['object_ids'] ) ) {
$_orderby = 'term_id';
}
$orderby = $this->parse_orderby( $_orderby );
if ( $orderby ) {
$orderby = "ORDER BY $orderby";
}
$order = $this->parse_order( $this->query_vars['order'] );
if ( $taxonomies ) {
$this->sql_clauses['where']['taxonomy'] =
"tt.taxonomy IN ('" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "')";
}
if ( empty( $args['exclude'] ) ) {
$args['exclude'] = array();
}
if ( empty( $args['include'] ) ) {
$args['include'] = array();
}
$exclude = $args['exclude'];
$exclude_tree = $args['exclude_tree'];
$include = $args['include'];
if ( ! empty( $include ) ) {
$exclude = '';
$exclude_tree = '';
$inclusions = implode( ',', wp_parse_id_list( $include ) );
$this->sql_clauses['where']['inclusions'] = 't.term_id IN ( ' . $inclusions . ' )';
}
$exclusions = array();
if ( ! empty( $exclude_tree ) ) {
$exclude_tree = wp_parse_id_list( $exclude_tree );
$excluded_children = $exclude_tree;
foreach ( $exclude_tree as $extrunk ) {
$excluded_children = array_merge(
$excluded_children,
(array) get_terms(
array(
'taxonomy' => reset( $taxonomies ),
'child_of' => (int) $extrunk,
'fields' => 'ids',
'hide_empty' => 0,
)
)
);
}
$exclusions = array_merge( $excluded_children, $exclusions );
}
if ( ! empty( $exclude ) ) {
$exclusions = array_merge( wp_parse_id_list( $exclude ), $exclusions );
}
// 'childless' terms are those without an entry in the flattened term hierarchy.
$childless = (bool) $args['childless'];
if ( $childless ) {
foreach ( $taxonomies as $_tax ) {
$term_hierarchy = _get_term_hierarchy( $_tax );
$exclusions = array_merge( array_keys( $term_hierarchy ), $exclusions );
}
}
if ( ! empty( $exclusions ) ) {
$exclusions = 't.term_id NOT IN (' . implode( ',', array_map( 'intval', $exclusions ) ) . ')';
} else {
$exclusions = '';
}
/**
* Filters the terms to exclude from the terms query.
*
* @since 2.3.0
*
* @param string $exclusions `NOT IN` clause of the terms query.
* @param array $args An array of terms query arguments.
* @param string[] $taxonomies An array of taxonomy names.
*/
$exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies );
if ( ! empty( $exclusions ) ) {
// Strip leading 'AND'. Must do string manipulation here for backward compatibility with filter.
$this->sql_clauses['where']['exclusions'] = preg_replace( '/^\s*AND\s*/', '', $exclusions );
}
if ( '' === $args['name'] ) {
$args['name'] = array();
} else {
$args['name'] = (array) $args['name'];
}
if ( ! empty( $args['name'] ) ) {
$names = $args['name'];
foreach ( $names as &$_name ) {
// `sanitize_term_field()` returns slashed data.
$_name = stripslashes( sanitize_term_field( 'name', $_name, 0, reset( $taxonomies ), 'db' ) );
}
$this->sql_clauses['where']['name'] = "t.name IN ('" . implode( "', '", array_map( 'esc_sql', $names ) ) . "')";
}
if ( '' === $args['slug'] ) {
$args['slug'] = array();
} else {
$args['slug'] = array_map( 'sanitize_title', (array) $args['slug'] );
}
if ( ! empty( $args['slug'] ) ) {
$slug = implode( "', '", $args['slug'] );
$this->sql_clauses['where']['slug'] = "t.slug IN ('" . $slug . "')";
}
if ( '' === $args['term_taxonomy_id'] ) {
$args['term_taxonomy_id'] = array();
} else {
$args['term_taxonomy_id'] = array_map( 'intval', (array) $args['term_taxonomy_id'] );
}
if ( ! empty( $args['term_taxonomy_id'] ) ) {
$tt_ids = implode( ',', $args['term_taxonomy_id'] );
$this->sql_clauses['where']['term_taxonomy_id'] = "tt.term_taxonomy_id IN ({$tt_ids})";
}
if ( ! empty( $args['name__like'] ) ) {
$this->sql_clauses['where']['name__like'] = $wpdb->prepare(
't.name LIKE %s',
'%' . $wpdb->esc_like( $args['name__like'] ) . '%'
);
}
if ( ! empty( $args['description__like'] ) ) {
$this->sql_clauses['where']['description__like'] = $wpdb->prepare(
'tt.description LIKE %s',
'%' . $wpdb->esc_like( $args['description__like'] ) . '%'
);
}
if ( '' === $args['object_ids'] ) {
$args['object_ids'] = array();
} else {
$args['object_ids'] = array_map( 'intval', (array) $args['object_ids'] );
}
if ( ! empty( $args['object_ids'] ) ) {
$object_ids = implode( ', ', $args['object_ids'] );
$this->sql_clauses['where']['object_ids'] = "tr.object_id IN ($object_ids)";
}
/*
* When querying for object relationships, the 'count > 0' check
* added by 'hide_empty' is superfluous.
*/
if ( ! empty( $args['object_ids'] ) ) {
$args['hide_empty'] = false;
}
if ( '' !== $parent ) {
$parent = (int) $parent;
$this->sql_clauses['where']['parent'] = "tt.parent = '$parent'";
}
$hierarchical = $args['hierarchical'];
if ( 'count' === $args['fields'] ) {
$hierarchical = false;
}
if ( $args['hide_empty'] && ! $hierarchical ) {
$this->sql_clauses['where']['count'] = 'tt.count > 0';
}
$number = $args['number'];
$offset = $args['offset'];
// Don't limit the query results when we have to descend the family tree.
if ( $number && ! $hierarchical && ! $child_of && '' === $parent ) {
if ( $offset ) {
$limits = 'LIMIT ' . $offset . ',' . $number;
} else {
$limits = 'LIMIT ' . $number;
}
} else {
$limits = '';
}
if ( ! empty( $args['search'] ) ) {
$this->sql_clauses['where']['search'] = $this->get_search_sql( $args['search'] );
}
// Meta query support.
$join = '';
$distinct = '';
// Reparse meta_query query_vars, in case they were modified in a 'pre_get_terms' callback.
$this->meta_query->parse_query_vars( $this->query_vars );
$mq_sql = $this->meta_query->get_sql( 'term', 't', 'term_id' );
$meta_clauses = $this->meta_query->get_clauses();
if ( ! empty( $meta_clauses ) ) {
$join .= $mq_sql['join'];
// Strip leading 'AND'.
$this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $mq_sql['where'] );
$distinct .= 'DISTINCT';
}
$selects = array();
switch ( $args['fields'] ) {
case 'count':
$orderby = '';
$order = '';
$selects = array( 'COUNT(*)' );
break;
default:
$selects = array( 't.term_id' );
if ( 'all_with_object_id' === $args['fields'] && ! empty( $args['object_ids'] ) ) {
$selects[] = 'tr.object_id';
}
break;
}
$_fields = $args['fields'];
/**
* Filters the fields to select in the terms query.
*
* Field lists modified using this filter will only modify the term fields returned
* by the function when the `$fields` parameter set to 'count' or 'all'. In all other
* cases, the term fields in the results array will be determined by the `$fields`
* parameter alone.
*
* Use of this filter can result in unpredictable behavior, and is not recommended.
*
* @since 2.8.0
*
* @param string[] $selects An array of fields to select for the terms query.
* @param array $args An array of term query arguments.
* @param string[] $taxonomies An array of taxonomy names.
*/
$fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) );
$join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
if ( ! empty( $this->query_vars['object_ids'] ) ) {
$join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id";
$distinct = 'DISTINCT';
}
$where = implode( ' AND ', $this->sql_clauses['where'] );
$pieces = array( 'fields', 'join', 'where', 'distinct', 'orderby', 'order', 'limits' );
/**
* Filters the terms query SQL clauses.
*
* @since 3.1.0
*
* @param string[] $clauses {
* Associative array of the clauses for the query.
*
* @type string $fields The SELECT clause of the query.
* @type string $join The JOIN clause of the query.
* @type string $where The WHERE clause of the query.
* @type string $distinct The DISTINCT clause of the query.
* @type string $orderby The ORDER BY clause of the query.
* @type string $order The ORDER clause of the query.
* @type string $limits The LIMIT clause of the query.
* }
* @param string[] $taxonomies An array of taxonomy names.
* @param array $args An array of term query arguments.
*/
$clauses = apply_filters( 'terms_clauses', compact( $pieces ), $taxonomies, $args );
$fields = isset( $clauses['fields'] ) ? $clauses['fields'] : '';
$join = isset( $clauses['join'] ) ? $clauses['join'] : '';
$where = isset( $clauses['where'] ) ? $clauses['where'] : '';
$distinct = isset( $clauses['distinct'] ) ? $clauses['distinct'] : '';
$orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : '';
$order = isset( $clauses['order'] ) ? $clauses['order'] : '';
$limits = isset( $clauses['limits'] ) ? $clauses['limits'] : '';
$fields_is_filtered = implode( ', ', $selects ) !== $fields;
if ( $where ) {
$where = "WHERE $where";
}
$this->sql_clauses['select'] = "SELECT $distinct $fields";
$this->sql_clauses['from'] = "FROM $wpdb->terms AS t $join";
$this->sql_clauses['orderby'] = $orderby ? "$orderby $order" : '';
$this->sql_clauses['limits'] = $limits;
// Beginning of the string is on a new line to prevent leading whitespace. See https://core.trac.wordpress.org/ticket/56841.
$this->request =
"{$this->sql_clauses['select']}
{$this->sql_clauses['from']}
{$where}
{$this->sql_clauses['orderby']}
{$this->sql_clauses['limits']}";
$this->terms = null;
/**
* Filters the terms array before the query takes place.
*
* Return a non-null value to bypass WordPress' default term queries.
*
* @since 5.3.0
*
* @param array|null $terms Return an array of term data to short-circuit WP's term query,
* or null to allow WP queries to run normally.
* @param WP_Term_Query $query The WP_Term_Query instance, passed by reference.
*/
$this->terms = apply_filters_ref_array( 'terms_pre_query', array( $this->terms, &$this ) );
if ( null !== $this->terms ) {
return $this->terms;
}
if ( $args['cache_results'] ) {
$cache_key = $this->generate_cache_key( $args, $this->request );
$last_changed = wp_cache_get_last_changed( 'terms' );
$cache = wp_cache_get_salted( $cache_key, 'term-queries', $last_changed );
if ( false !== $cache ) {
if ( 'ids' === $_fields ) {
$cache = array_map( 'intval', $cache );
} elseif ( 'count' !== $_fields ) {
if ( ( 'all_with_object_id' === $_fields && ! empty( $args['object_ids'] ) )
|| ( 'all' === $_fields && $args['pad_counts'] || $fields_is_filtered )
) {
$term_ids = wp_list_pluck( $cache, 'term_id' );
} else {
$term_ids = array_map( 'intval', $cache );
}
_prime_term_caches( $term_ids, $args['update_term_meta_cache'] );
$term_objects = $this->populate_terms( $cache );
$cache = $this->format_terms( $term_objects, $_fields );
}
$this->terms = $cache;
return $this->terms;
}
}
if ( 'count' === $_fields ) {
$count = $wpdb->get_var( $this->request ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
if ( $args['cache_results'] ) {
wp_cache_set_salted( $cache_key, $count, 'term-queries', $last_changed );
}
return $count;
}
$terms = $wpdb->get_results( $this->request ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
if ( empty( $terms ) ) {
$this->terms = array();
if ( $args['cache_results'] ) {
wp_cache_set_salted( $cache_key, $this->terms, 'term-queries', $last_changed );
}
return $this->terms;
}
$term_ids = wp_list_pluck( $terms, 'term_id' );
_prime_term_caches( $term_ids, false );
$term_objects = $this->populate_terms( $terms );
if ( $child_of ) {
foreach ( $taxonomies as $_tax ) {
$children = _get_term_hierarchy( $_tax );
if ( ! empty( $children ) ) {
$term_objects = _get_term_children( $child_of, $term_objects, $_tax );
}
}
}
// Update term counts to include children.
if ( $args['pad_counts'] && 'all' === $_fields ) {
foreach ( $taxonomies as $_tax ) {
_pad_term_counts( $term_objects, $_tax );
}
}
// Make sure we show empty categories that have children.
if ( $hierarchical && $args['hide_empty'] && is_array( $term_objects ) ) {
foreach ( $term_objects as $k => $term ) {
if ( ! $term->count ) {
$children = get_term_children( $term->term_id, $term->taxonomy );
if ( is_array( $children ) ) {
foreach ( $children as $child_id ) {
$child = get_term( $child_id, $term->taxonomy );
if ( $child instanceof WP_Term && $child->count ) {
continue 2;
}
}
}
// It really is empty.
unset( $term_objects[ $k ] );
}
}
}
// Hierarchical queries are not limited, so 'offset' and 'number' must be handled now.
if ( $hierarchical && $number && is_array( $term_objects ) ) {
if ( $offset >= count( $term_objects ) ) {
$term_objects = array();
} else {
$term_objects = array_slice( $term_objects, $offset, $number, true );
}
}
// Prime termmeta cache.
if ( $args['update_term_meta_cache'] ) {
$term_ids = wp_list_pluck( $term_objects, 'term_id' );
wp_lazyload_term_meta( $term_ids );
}
if ( 'all_with_object_id' === $_fields && ! empty( $args['object_ids'] ) ) {
$term_cache = array();
foreach ( $term_objects as $term ) {
$object = new stdClass();
$object->term_id = $term->term_id;
$object->object_id = $term->object_id;
$term_cache[] = $object;
}
} elseif ( 'all' === $_fields && $args['pad_counts'] ) {
$term_cache = array();
foreach ( $term_objects as $term ) {
$object = new stdClass();
$object->term_id = $term->term_id;
$object->count = $term->count;
$term_cache[] = $object;
}
} elseif ( $fields_is_filtered ) {
$term_cache = $term_objects;
} else {
$term_cache = wp_list_pluck( $term_objects, 'term_id' );
}
if ( $args['cache_results'] ) {
wp_cache_set_salted( $cache_key, $term_cache, 'term-queries', $last_changed );
}
$this->terms = $this->format_terms( $term_objects, $_fields );
return $this->terms;
}
/**
* Parse and sanitize 'orderby' keys passed to the term query.
*
* @since 4.6.0
*
* @param string $orderby_raw Alias for the field to order by.
* @return string|false Value to used in the ORDER clause. False otherwise.
*/
protected function parse_orderby( $orderby_raw ) {
$_orderby = strtolower( $orderby_raw );
$maybe_orderby_meta = false;
if ( in_array( $_orderby, array( 'term_id', 'name', 'slug', 'term_group' ), true ) ) {
$orderby = "t.$_orderby";
} elseif ( in_array( $_orderby, array( 'count', 'parent', 'taxonomy', 'term_taxonomy_id', 'description' ), true ) ) {
$orderby = "tt.$_orderby";
} elseif ( 'term_order' === $_orderby ) {
$orderby = 'tr.term_order';
} elseif ( 'include' === $_orderby && ! empty( $this->query_vars['include'] ) ) {
$include = implode( ',', wp_parse_id_list( $this->query_vars['include'] ) );
$orderby = "FIELD( t.term_id, $include )";
} elseif ( 'slug__in' === $_orderby && ! empty( $this->query_vars['slug'] ) && is_array( $this->query_vars['slug'] ) ) {
$slugs = implode( "', '", array_map( 'sanitize_title_for_query', $this->query_vars['slug'] ) );
$orderby = "FIELD( t.slug, '" . $slugs . "')";
} elseif ( 'none' === $_orderby ) {
$orderby = '';
} elseif ( empty( $_orderby ) || 'id' === $_orderby || 'term_id' === $_orderby ) {
$orderby = 't.term_id';
} else {
$orderby = 't.name';
// This may be a value of orderby related to meta.
$maybe_orderby_meta = true;
}
/**
* Filters the ORDERBY clause of the terms query.
*
* @since 2.8.0
*
* @param string $orderby `ORDERBY` clause of the terms query.
* @param array $args An array of term query arguments.
* @param string[] $taxonomies An array of taxonomy names.
*/
$orderby = apply_filters( 'get_terms_orderby', $orderby, $this->query_vars, $this->query_vars['taxonomy'] );
// Run after the 'get_terms_orderby' filter for backward compatibility.
if ( $maybe_orderby_meta ) {
$maybe_orderby_meta = $this->parse_orderby_meta( $_orderby );
if ( $maybe_orderby_meta ) {
$orderby = $maybe_orderby_meta;
}
}
return $orderby;
}
/**
* Format response depending on field requested.
*
* @since 6.0.0
*
* @param WP_Term[] $term_objects Array of term objects.
* @param string $_fields Field to format.
*
* @return WP_Term[]|int[]|string[] Array of terms / strings / ints depending on field requested.
*/
protected function format_terms( $term_objects, $_fields ) {
$_terms = array();
if ( 'id=>parent' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[ $term->term_id ] = $term->parent;
}
} elseif ( 'ids' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[] = (int) $term->term_id;
}
} elseif ( 'tt_ids' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[] = (int) $term->term_taxonomy_id;
}
} elseif ( 'names' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[] = $term->name;
}
} elseif ( 'slugs' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[] = $term->slug;
}
} elseif ( 'id=>name' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[ $term->term_id ] = $term->name;
}
} elseif ( 'id=>slug' === $_fields ) {
foreach ( $term_objects as $term ) {
$_terms[ $term->term_id ] = $term->slug;
}
} elseif ( 'all' === $_fields || 'all_with_object_id' === $_fields ) {
$_terms = $term_objects;
}
return $_terms;
}
/**
* Generate the ORDER BY clause for an 'orderby' param that is potentially related to a meta query.
*
* @since 4.6.0
*
* @param string $orderby_raw Raw 'orderby' value passed to WP_Term_Query.
* @return string ORDER BY clause.
*/
protected function parse_orderby_meta( $orderby_raw ) {
$orderby = '';
// Tell the meta query to generate its SQL, so we have access to table aliases.
$this->meta_query->get_sql( 'term', 't', 'term_id' );
$meta_clauses = $this->meta_query->get_clauses();
if ( ! $meta_clauses || ! $orderby_raw ) {
return $orderby;
}
$allowed_keys = array();
$primary_meta_key = null;
$primary_meta_query = reset( $meta_clauses );
if ( ! empty( $primary_meta_query['key'] ) ) {
$primary_meta_key = $primary_meta_query['key'];
$allowed_keys[] = $primary_meta_key;
}
$allowed_keys[] = 'meta_value';
$allowed_keys[] = 'meta_value_num';
$allowed_keys = array_merge( $allowed_keys, array_keys( $meta_clauses ) );
if ( ! in_array( $orderby_raw, $allowed_keys, true ) ) {
return $orderby;
}
switch ( $orderby_raw ) {
case $primary_meta_key:
case 'meta_value':
if ( ! empty( $primary_meta_query['type'] ) ) {
$orderby = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})";
} else {
$orderby = "{$primary_meta_query['alias']}.meta_value";
}
break;
case 'meta_value_num':
$orderby = "{$primary_meta_query['alias']}.meta_value+0";
break;
default:
if ( array_key_exists( $orderby_raw, $meta_clauses ) ) {
// $orderby corresponds to a meta_query clause.
$meta_clause = $meta_clauses[ $orderby_raw ];
$orderby = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})";
}
break;
}
return $orderby;
}
/**
* Parse an 'order' query variable and cast it to ASC or DESC as necessary.
*
* @since 4.6.0
*
* @param string $order The 'order' query variable.
* @return string The sanitized 'order' query variable.
*/
protected function parse_order( $order ) {
if ( ! is_string( $order ) || empty( $order ) ) {
return 'DESC';
}
if ( 'ASC' === strtoupper( $order ) ) {
return 'ASC';
} else {
return 'DESC';
}
}
/**
* Used internally to generate a SQL string related to the 'search' parameter.
*
* @since 4.6.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $search Search string.
* @return string Search SQL.
*/
protected function get_search_sql( $search ) {
global $wpdb;
$like = '%' . $wpdb->esc_like( $search ) . '%';
return $wpdb->prepare( '((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like );
}
/**
* Creates an array of term objects from an array of term IDs.
*
* Also discards invalid term objects.
*
* @since 4.9.8
*
* @param Object[]|int[] $terms List of objects or term ids.
* @return WP_Term[] Array of `WP_Term` objects.
*/
protected function populate_terms( $terms ) {
$term_objects = array();
if ( ! is_array( $terms ) ) {
return $term_objects;
}
foreach ( $terms as $key => $term_data ) {
if ( is_object( $term_data ) && property_exists( $term_data, 'term_id' ) ) {
$term = get_term( $term_data->term_id );
if ( property_exists( $term_data, 'object_id' ) ) {
$term->object_id = (int) $term_data->object_id;
}
if ( property_exists( $term_data, 'count' ) ) {
$term->count = (int) $term_data->count;
}
} else {
$term = get_term( $term_data );
}
if ( $term instanceof WP_Term ) {
$term_objects[ $key ] = $term;
}
}
return $term_objects;
}
/**
* Generate cache key.
*
* @since 6.2.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $args WP_Term_Query arguments.
* @param string $sql SQL statement.
*
* @return string Cache key.
*/
protected function generate_cache_key( array $args, $sql ) {
global $wpdb;
// $args can be anything. Only use the args defined in defaults to compute the key.
$cache_args = wp_array_slice_assoc( $args, array_keys( $this->query_var_defaults ) );
unset( $cache_args['cache_results'], $cache_args['update_term_meta_cache'] );
if ( 'count' !== $args['fields'] && 'all_with_object_id' !== $args['fields'] ) {
$cache_args['fields'] = 'all';
}
// Replace wpdb placeholder in the SQL statement used by the cache key.
$sql = $wpdb->remove_placeholder_escape( $sql );
$key = md5( serialize( $cache_args ) . $sql );
return "get_terms:$key";
}
}
/**
* Canonical API to handle WordPress Redirecting
*
* Based on "Permalink Redirect" from Scott Yang and "Enforce www. Preference"
* by Mark Jaquith
*
* @package WordPress
* @since 2.3.0
*/
/**
* Redirects incoming links to the proper URL based on the site url.
*
* Search engines consider www.somedomain.com and somedomain.com to be two
* different URLs when they both go to the same location. This SEO enhancement
* prevents penalty for duplicate content by redirecting all incoming links to
* one or the other.
*
* Prevents redirection for feeds, trackbacks, searches, and
* admin URLs. Does not redirect on non-pretty-permalink-supporting IIS 7+,
* page/post previews, WP admin, Trackbacks, robots.txt, favicon.ico, searches,
* or on POST requests.
*
* Will also attempt to find the correct link when a user enters a URL that does
* not exist based on exact WordPress query. Will instead try to parse the URL
* or query in an attempt to figure the correct page to go to.
*
* @since 2.3.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global bool $is_IIS
* @global WP_Query $wp_query WordPress Query object.
* @global wpdb $wpdb WordPress database abstraction object.
* @global WP $wp Current WordPress environment instance.
*
* @param string $requested_url Optional. The URL that was requested, used to
* figure if redirect is needed.
* @param bool $do_redirect Optional. Redirect to the new URL.
* @return string|void The string of the URL, if redirect needed.
*/
function redirect_canonical( $requested_url = null, $do_redirect = true ) {
global $wp_rewrite, $is_IIS, $wp_query, $wpdb, $wp;
if ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ), true ) ) {
return;
}
/*
* If we're not in wp-admin and the post has been published and preview nonce
* is non-existent or invalid then no need for preview in query.
*/
if ( is_preview() && get_query_var( 'p' ) && 'publish' === get_post_status( get_query_var( 'p' ) ) ) {
if ( ! isset( $_GET['preview_id'] )
|| ! isset( $_GET['preview_nonce'] )
|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] )
) {
$wp_query->is_preview = false;
}
}
if ( is_admin() || is_search() || is_preview() || is_trackback() || is_favicon()
|| ( $is_IIS && ! iis7_supports_permalinks() )
) {
return;
}
if ( ! $requested_url && isset( $_SERVER['HTTP_HOST'] ) ) {
// Build the URL in the address bar.
$requested_url = is_ssl() ? 'https://' : 'http://';
$requested_url .= $_SERVER['HTTP_HOST'];
$requested_url .= $_SERVER['REQUEST_URI'];
}
$original = parse_url( $requested_url );
if ( false === $original ) {
return;
}
// Notice fixing.
$original += array(
'host' => '',
'path' => '',
'query' => '',
'scheme' => '',
);
$redirect = $original;
$redirect_url = false;
$redirect_obj = false;
/*
* If the original URL ended with non-breaking spaces, they were almost
* certainly inserted by accident. Let's remove them, so the reader doesn't
* see a 404 error with no obvious cause.
*/
$redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] );
// It's not a preview, so remove it from URL.
if ( get_query_var( 'preview' ) ) {
$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] );
}
$post_id = get_query_var( 'p' );
if ( is_feed() && $post_id ) {
$redirect_url = get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
$redirect_obj = get_post( $post_id );
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed' ),
$redirect_url
);
$redirect['path'] = parse_url( $redirect_url, PHP_URL_PATH );
}
}
if ( is_singular() && $wp_query->post_count < 1 && $post_id ) {
$vars = $wpdb->get_results( $wpdb->prepare( "SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $post_id ) );
if ( ! empty( $vars[0] ) ) {
$vars = $vars[0];
if ( 'revision' === $vars->post_type && $vars->post_parent > 0 ) {
$post_id = $vars->post_parent;
}
$redirect_url = get_permalink( $post_id );
$redirect_obj = get_post( $post_id );
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
}
// These tests give us a WP-generated permalink.
if ( is_404() ) {
// Redirect ?page_id, ?p=, ?attachment_id= to their respective URLs.
$post_id = max( get_query_var( 'p' ), get_query_var( 'page_id' ), get_query_var( 'attachment_id' ) );
$redirect_post = $post_id ? get_post( $post_id ) : false;
if ( $redirect_post ) {
$post_type_obj = get_post_type_object( $redirect_post->post_type );
if ( $post_type_obj && $post_type_obj->public && 'auto-draft' !== $redirect_post->post_status ) {
$redirect_url = get_permalink( $redirect_post );
$redirect_obj = get_post( $redirect_post );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
$year = get_query_var( 'year' );
$month = get_query_var( 'monthnum' );
$day = get_query_var( 'day' );
if ( $year && $month && $day ) {
$date = sprintf( '%04d-%02d-%02d', $year, $month, $day );
if ( ! wp_checkdate( $month, $day, $year, $date ) ) {
$redirect_url = get_month_link( $year, $month );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'year', 'monthnum', 'day' ),
$redirect_url
);
}
} elseif ( $year && $month && $month > 12 ) {
$redirect_url = get_year_link( $year );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'year', 'monthnum' ),
$redirect_url
);
}
// Strip off non-existing links from single posts or pages.
if ( get_query_var( 'page' ) ) {
$post_id = 0;
if ( $wp_query->queried_object instanceof WP_Post ) {
$post_id = $wp_query->queried_object->ID;
} elseif ( $wp_query->post ) {
$post_id = $wp_query->post->ID;
}
if ( $post_id ) {
$redirect_url = get_permalink( $post_id );
$redirect_obj = get_post( $post_id );
$redirect['path'] = rtrim( $redirect['path'], (int) get_query_var( 'page' ) . '/' );
$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
}
}
if ( ! $redirect_url ) {
$redirect_url = redirect_guess_404_permalink();
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'page', 'feed', 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
} elseif ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) {
// Rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101.
if ( is_attachment()
&& ! array_diff( array_keys( $wp->query_vars ), array( 'attachment', 'attachment_id' ) )
&& ! $redirect_url
) {
if ( ! empty( $_GET['attachment_id'] ) ) {
$redirect_url = get_attachment_link( get_query_var( 'attachment_id' ) );
$redirect_obj = get_post( get_query_var( 'attachment_id' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'attachment_id', $redirect['query'] );
}
} else {
$redirect_url = get_attachment_link();
$redirect_obj = get_post();
}
} elseif ( is_single() && ! empty( $_GET['p'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( get_query_var( 'p' ) );
$redirect_obj = get_post( get_query_var( 'p' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'p', 'post_type' ), $redirect['query'] );
}
} elseif ( is_single() && ! empty( $_GET['name'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( $wp_query->get_queried_object_id() );
$redirect_obj = get_post( $wp_query->get_queried_object_id() );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'name', $redirect['query'] );
}
} elseif ( is_page() && ! empty( $_GET['page_id'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( get_query_var( 'page_id' ) );
$redirect_obj = get_post( get_query_var( 'page_id' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
}
} elseif ( is_page() && ! is_feed() && ! $redirect_url
&& 'page' === get_option( 'show_on_front' ) && get_queried_object_id() === (int) get_option( 'page_on_front' )
) {
$redirect_url = home_url( '/' );
} elseif ( is_home() && ! empty( $_GET['page_id'] ) && ! $redirect_url
&& 'page' === get_option( 'show_on_front' ) && get_query_var( 'page_id' ) === (int) get_option( 'page_for_posts' )
) {
$redirect_url = get_permalink( get_option( 'page_for_posts' ) );
$redirect_obj = get_post( get_option( 'page_for_posts' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
}
} elseif ( ! empty( $_GET['m'] ) && ( is_year() || is_month() || is_day() ) ) {
$m = get_query_var( 'm' );
switch ( strlen( $m ) ) {
case 4: // Yearly.
$redirect_url = get_year_link( $m );
break;
case 6: // Monthly.
$redirect_url = get_month_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ) );
break;
case 8: // Daily.
$redirect_url = get_day_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ), substr( $m, 6, 2 ) );
break;
}
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'm', $redirect['query'] );
}
// Now moving on to non ?m=X year/month/day links.
} elseif ( is_date() ) {
$year = get_query_var( 'year' );
$month = get_query_var( 'monthnum' );
$day = get_query_var( 'day' );
if ( is_day() && $year && $month && ! empty( $_GET['day'] ) ) {
$redirect_url = get_day_link( $year, $month, $day );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'year', 'monthnum', 'day' ), $redirect['query'] );
}
} elseif ( is_month() && $year && ! empty( $_GET['monthnum'] ) ) {
$redirect_url = get_month_link( $year, $month );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'year', 'monthnum' ), $redirect['query'] );
}
} elseif ( is_year() && ! empty( $_GET['year'] ) ) {
$redirect_url = get_year_link( $year );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'year', $redirect['query'] );
}
}
} elseif ( is_author() && ! empty( $_GET['author'] )
&& is_string( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] )
) {
$author = get_userdata( get_query_var( 'author' ) );
if ( false !== $author
&& $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE $wpdb->posts.post_author = %d AND $wpdb->posts.post_status = 'publish' LIMIT 1", $author->ID ) )
) {
$redirect_url = get_author_posts_url( $author->ID, $author->user_nicename );
$redirect_obj = $author;
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'author', $redirect['query'] );
}
}
} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (tags/categories).
$term_count = 0;
foreach ( $wp_query->tax_query->queried_terms as $tax_query ) {
if ( isset( $tax_query['terms'] ) && is_countable( $tax_query['terms'] ) ) {
$term_count += count( $tax_query['terms'] );
}
}
$obj = $wp_query->get_queried_object();
if ( $term_count <= 1 && ! empty( $obj->term_id ) ) {
$tax_url = get_term_link( (int) $obj->term_id, $obj->taxonomy );
if ( $tax_url && ! is_wp_error( $tax_url ) ) {
if ( ! empty( $redirect['query'] ) ) {
// Strip taxonomy query vars off the URL.
$qv_remove = array( 'term', 'taxonomy' );
if ( is_category() ) {
$qv_remove[] = 'category_name';
$qv_remove[] = 'cat';
} elseif ( is_tag() ) {
$qv_remove[] = 'tag';
$qv_remove[] = 'tag_id';
} else {
// Custom taxonomies will have a custom query var, remove those too.
$tax_obj = get_taxonomy( $obj->taxonomy );
if ( false !== $tax_obj->query_var ) {
$qv_remove[] = $tax_obj->query_var;
}
}
$rewrite_vars = array_diff( array_keys( $wp_query->query ), array_keys( $_GET ) );
// Check to see if all the query vars are coming from the rewrite, none are set via $_GET.
if ( ! array_diff( $rewrite_vars, array_keys( $_GET ) ) ) {
// Remove all of the per-tax query vars.
$redirect['query'] = remove_query_arg( $qv_remove, $redirect['query'] );
// Create the destination URL for this taxonomy.
$tax_url = parse_url( $tax_url );
if ( ! empty( $tax_url['query'] ) ) {
// Taxonomy accessible via ?taxonomy=...&term=... or any custom query var.
parse_str( $tax_url['query'], $query_vars );
$redirect['query'] = add_query_arg( $query_vars, $redirect['query'] );
} else {
// Taxonomy is accessible via a "pretty URL".
$redirect['path'] = $tax_url['path'];
}
} else {
// Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite.
foreach ( $qv_remove as $_qv ) {
if ( isset( $rewrite_vars[ $_qv ] ) ) {
$redirect['query'] = remove_query_arg( $_qv, $redirect['query'] );
}
}
}
}
}
}
} elseif ( is_single() && str_contains( $wp_rewrite->permalink_structure, '%category%' ) ) {
$category_name = get_query_var( 'category_name' );
if ( $category_name ) {
$category = get_category_by_path( $category_name );
if ( ! $category || is_wp_error( $category )
|| ! has_term( $category->term_id, 'category', $wp_query->get_queried_object_id() )
) {
$redirect_url = get_permalink( $wp_query->get_queried_object_id() );
$redirect_obj = get_post( $wp_query->get_queried_object_id() );
}
}
}
// Post paging.
if ( is_singular() && get_query_var( 'page' ) ) {
$page = get_query_var( 'page' );
if ( ! $redirect_url ) {
$redirect_url = get_permalink( get_queried_object_id() );
$redirect_obj = get_post( get_queried_object_id() );
}
if ( $page > 1 ) {
$redirect_url = trailingslashit( $redirect_url );
if ( is_front_page() ) {
$redirect_url .= user_trailingslashit( "$wp_rewrite->pagination_base/$page", 'paged' );
} else {
$redirect_url .= user_trailingslashit( $page, 'single_paged' );
}
}
$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
}
if ( get_query_var( 'sitemap' ) ) {
$redirect_url = get_sitemap_url( get_query_var( 'sitemap' ), get_query_var( 'sitemap-subtype' ), get_query_var( 'paged' ) );
$redirect['query'] = remove_query_arg( array( 'sitemap', 'sitemap-subtype', 'paged' ), $redirect['query'] );
} elseif ( get_query_var( 'paged' ) || is_feed() || get_query_var( 'cpage' ) ) {
// Paging and feeds.
$paged = get_query_var( 'paged' );
$feed = get_query_var( 'feed' );
$cpage = get_query_var( 'cpage' );
while ( preg_match( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", $redirect['path'] )
|| preg_match( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+)?$#', $redirect['path'] )
|| preg_match( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+(/+)?$#", $redirect['path'] )
) {
// Strip off any existing paging.
$redirect['path'] = preg_replace( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path'] );
// Strip off feed endings.
$redirect['path'] = preg_replace( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path'] );
// Strip off any existing comment paging.
$redirect['path'] = preg_replace( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path'] );
}
$addl_path = '';
$default_feed = get_default_feed();
if ( is_feed() && in_array( $feed, $wp_rewrite->feeds, true ) ) {
$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
if ( ! is_singular() && get_query_var( 'withcomments' ) ) {
$addl_path .= 'comments/';
}
if ( ( 'rss' === $default_feed && 'feed' === $feed ) || 'rss' === $feed ) {
$format = ( 'rss2' === $default_feed ) ? '' : 'rss2';
} else {
$format = ( $default_feed === $feed || 'feed' === $feed ) ? '' : $feed;
}
$addl_path .= user_trailingslashit( 'feed/' . $format, 'feed' );
$redirect['query'] = remove_query_arg( 'feed', $redirect['query'] );
} elseif ( is_feed() && 'old' === $feed ) {
$old_feed_files = array(
'wp-atom.php' => 'atom',
'wp-commentsrss2.php' => 'comments_rss2',
'wp-feed.php' => $default_feed,
'wp-rdf.php' => 'rdf',
'wp-rss.php' => 'rss2',
'wp-rss2.php' => 'rss2',
);
if ( isset( $old_feed_files[ basename( $redirect['path'] ) ] ) ) {
$redirect_url = get_feed_link( $old_feed_files[ basename( $redirect['path'] ) ] );
wp_redirect( $redirect_url, 301 );
die();
}
}
if ( $paged > 0 ) {
$redirect['query'] = remove_query_arg( 'paged', $redirect['query'] );
if ( ! is_feed() ) {
if ( ! is_single() ) {
$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
if ( $paged > 1 ) {
$addl_path .= user_trailingslashit( "$wp_rewrite->pagination_base/$paged", 'paged' );
}
}
} elseif ( $paged > 1 ) {
$redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] );
}
}
$default_comments_page = get_option( 'default_comments_page' );
if ( get_option( 'page_comments' )
&& ( 'newest' === $default_comments_page && $cpage > 0
|| 'newest' !== $default_comments_page && $cpage > 1 )
) {
$addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' );
$addl_path .= user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . $cpage, 'commentpaged' );
$redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] );
}
// Strip off trailing /index.php/.
$redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path'] );
$redirect['path'] = user_trailingslashit( $redirect['path'] );
if ( ! empty( $addl_path )
&& $wp_rewrite->using_index_permalinks()
&& ! str_contains( $redirect['path'], '/' . $wp_rewrite->index . '/' )
) {
$redirect['path'] = trailingslashit( $redirect['path'] ) . $wp_rewrite->index . '/';
}
if ( ! empty( $addl_path ) ) {
$redirect['path'] = trailingslashit( $redirect['path'] ) . $addl_path;
}
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path'];
}
if ( 'wp-register.php' === basename( $redirect['path'] ) ) {
if ( is_multisite() ) {
/** This filter is documented in wp-login.php */
$redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) );
} else {
$redirect_url = wp_registration_url();
}
wp_redirect( $redirect_url, 301 );
die();
}
}
$is_attachment_redirect = false;
if ( is_attachment() && ! get_option( 'wp_attachment_pages_enabled' ) ) {
$attachment_id = get_query_var( 'attachment_id' );
$attachment_post = get_post( $attachment_id );
$attachment_parent_id = $attachment_post ? $attachment_post->post_parent : 0;
$attachment_url = wp_get_attachment_url( $attachment_id );
if ( $attachment_url !== $redirect_url ) {
/*
* If an attachment is attached to a post, it inherits the parent post's status.
* Fetch the parent post to check its status later.
*/
if ( $attachment_parent_id ) {
$redirect_obj = get_post( $attachment_parent_id );
}
$redirect_url = $attachment_url;
}
$is_attachment_redirect = true;
}
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
// Tack on any additional query vars.
if ( $redirect_url && ! empty( $redirect['query'] ) ) {
parse_str( $redirect['query'], $_parsed_query );
$redirect = parse_url( $redirect_url );
if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) {
parse_str( $redirect['query'], $_parsed_redirect_query );
if ( empty( $_parsed_redirect_query['name'] ) ) {
unset( $_parsed_query['name'] );
}
}
$_parsed_query = array_combine(
rawurlencode_deep( array_keys( $_parsed_query ) ),
rawurlencode_deep( array_values( $_parsed_query ) )
);
$redirect_url = add_query_arg( $_parsed_query, $redirect_url );
}
if ( $redirect_url ) {
$redirect = parse_url( $redirect_url );
}
// www.example.com vs. example.com
$user_home = parse_url( home_url() );
if ( ! empty( $user_home['host'] ) ) {
$redirect['host'] = $user_home['host'];
}
if ( empty( $user_home['path'] ) ) {
$user_home['path'] = '/';
}
// Handle ports.
if ( ! empty( $user_home['port'] ) ) {
$redirect['port'] = $user_home['port'];
} else {
unset( $redirect['port'] );
}
// Notice prevention after new parse_url( $redirect_url ) calls
$redirect += array(
'host' => '',
'path' => '',
'query' => '',
'scheme' => '',
);
// Trailing /index.php.
$redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path'] );
$punctuation_pattern = implode(
'|',
array_map(
'preg_quote',
array(
' ',
'%20', // Space.
'!',
'%21', // Exclamation mark.
'"',
'%22', // Double quote.
"'",
'%27', // Single quote.
'(',
'%28', // Opening bracket.
')',
'%29', // Closing bracket.
',',
'%2C', // Comma.
'.',
'%2E', // Period.
';',
'%3B', // Semicolon.
'{',
'%7B', // Opening curly bracket.
'}',
'%7D', // Closing curly bracket.
'%E2%80%9C', // Opening curly quote.
'%E2%80%9D', // Closing curly quote.
)
)
);
// Remove trailing spaces and end punctuation from the path.
$redirect['path'] = preg_replace( "#($punctuation_pattern)+$#", '', $redirect['path'] );
if ( ! empty( $redirect['query'] ) ) {
// Remove trailing spaces and end punctuation from certain terminating query string args.
$redirect['query'] = preg_replace( "#((^|&)(p|page_id|cat|tag)=[^&]*?)($punctuation_pattern)+$#", '$1', $redirect['query'] );
// Clean up empty query strings.
$redirect['query'] = trim( preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query'] ), '&' );
// Redirect obsolete feeds.
$redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] );
// Remove redundant leading ampersands.
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
}
// Strip /index.php/ when we're not using PATHINFO permalinks.
if ( ! $wp_rewrite->using_index_permalinks() ) {
$redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] );
}
// Trailing slashes.
if ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks()
&& ! $is_attachment_redirect
&& ! is_404() && ( ! is_front_page() || is_front_page() && get_query_var( 'paged' ) > 1 )
) {
$user_ts_type = '';
if ( get_query_var( 'paged' ) > 0 ) {
$user_ts_type = 'paged';
} else {
foreach ( array( 'single', 'category', 'page', 'day', 'month', 'year', 'home' ) as $type ) {
$func = 'is_' . $type;
if ( call_user_func( $func ) ) {
$user_ts_type = $type;
break;
}
}
}
$redirect['path'] = user_trailingslashit( $redirect['path'], $user_ts_type );
} elseif ( is_front_page() ) {
$redirect['path'] = trailingslashit( $redirect['path'] );
}
// Remove trailing slash for robots.txt or sitemap requests.
if ( is_robots()
|| ! empty( get_query_var( 'sitemap' ) ) || ! empty( get_query_var( 'sitemap-stylesheet' ) )
) {
$redirect['path'] = untrailingslashit( $redirect['path'] );
}
// Strip multiple slashes out of the URL.
if ( str_contains( $redirect['path'], '//' ) ) {
$redirect['path'] = preg_replace( '|/+|', '/', $redirect['path'] );
}
// Always trailing slash the Front Page URL.
if ( trailingslashit( $redirect['path'] ) === trailingslashit( $user_home['path'] ) ) {
$redirect['path'] = trailingslashit( $redirect['path'] );
}
$original_host_low = strtolower( $original['host'] );
$redirect_host_low = strtolower( $redirect['host'] );
/*
* Ignore differences in host capitalization, as this can lead to infinite redirects.
* Only redirect no-www <=> yes-www.
*/
if ( $original_host_low === $redirect_host_low
|| ( 'www.' . $original_host_low !== $redirect_host_low
&& 'www.' . $redirect_host_low !== $original_host_low )
) {
$redirect['host'] = $original['host'];
}
$compare_original = array( $original['host'], $original['path'] );
if ( ! empty( $original['port'] ) ) {
$compare_original[] = $original['port'];
}
if ( ! empty( $original['query'] ) ) {
$compare_original[] = $original['query'];
}
$compare_redirect = array( $redirect['host'], $redirect['path'] );
if ( ! empty( $redirect['port'] ) ) {
$compare_redirect[] = $redirect['port'];
}
if ( ! empty( $redirect['query'] ) ) {
$compare_redirect[] = $redirect['query'];
}
if ( $compare_original !== $compare_redirect ) {
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'];
if ( ! empty( $redirect['port'] ) ) {
$redirect_url .= ':' . $redirect['port'];
}
$redirect_url .= $redirect['path'];
if ( ! empty( $redirect['query'] ) ) {
$redirect_url .= '?' . $redirect['query'];
}
}
if ( ! $redirect_url || $redirect_url === $requested_url ) {
return;
}
// Hex-encoded octets are case-insensitive.
if ( str_contains( $requested_url, '%' ) ) {
if ( ! function_exists( 'lowercase_octets' ) ) {
/**
* Converts the first hex-encoded octet match to lowercase.
*
* @since 3.1.0
* @ignore
*
* @param array $matches Hex-encoded octet matches for the requested URL.
* @return string Lowercased version of the first match.
*/
function lowercase_octets( $matches ) {
return strtolower( $matches[0] );
}
}
$requested_url = preg_replace_callback( '|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url );
}
if ( $redirect_obj instanceof WP_Post ) {
$post_status_obj = get_post_status_object( get_post_status( $redirect_obj ) );
/*
* Unset the redirect object and URL if they are not readable by the user.
* This condition is a little confusing as the condition needs to pass if
* the post is not readable by the user. That's why there are ! (not) conditions
* throughout.
*/
if (
// Private post statuses only redirect if the user can read them.
! (
$post_status_obj->private &&
current_user_can( 'read_post', $redirect_obj->ID )
) &&
// For other posts, only redirect if publicly viewable.
! is_post_publicly_viewable( $redirect_obj )
) {
$redirect_obj = false;
$redirect_url = false;
}
}
/**
* Filters the canonical redirect URL.
*
* Returning false to this filter will cancel the redirect.
*
* @since 2.3.0
*
* @param string $redirect_url The redirect URL.
* @param string $requested_url The requested URL.
*/
$redirect_url = apply_filters( 'redirect_canonical', $redirect_url, $requested_url );
// Yes, again -- in case the filter aborted the request.
if ( ! $redirect_url || strip_fragment_from_url( $redirect_url ) === strip_fragment_from_url( $requested_url ) ) {
return;
}
if ( $do_redirect ) {
// Protect against chained redirects.
if ( ! redirect_canonical( $redirect_url, false ) ) {
wp_redirect( $redirect_url, 301 );
exit;
} else {
// Debug.
// die("1: $redirect_url
2: " . redirect_canonical( $redirect_url, false ) );
return;
}
} else {
return $redirect_url;
}
}
/**
* Removes arguments from a query string if they are not present in a URL
* DO NOT use this in plugin code.
*
* @since 3.4.0
* @access private
*
* @param string $query_string
* @param array $args_to_check
* @param string $url
* @return string The altered query string
*/
function _remove_qs_args_if_not_in_url( $query_string, array $args_to_check, $url ) {
$parsed_url = parse_url( $url );
if ( ! empty( $parsed_url['query'] ) ) {
parse_str( $parsed_url['query'], $parsed_query );
foreach ( $args_to_check as $qv ) {
if ( ! isset( $parsed_query[ $qv ] ) ) {
$query_string = remove_query_arg( $qv, $query_string );
}
}
} else {
$query_string = remove_query_arg( $args_to_check, $query_string );
}
return $query_string;
}
/**
* Strips the #fragment from a URL, if one is present.
*
* @since 4.4.0
*
* @param string $url The URL to strip.
* @return string The altered URL.
*/
function strip_fragment_from_url( $url ) {
$parsed_url = wp_parse_url( $url );
if ( ! empty( $parsed_url['host'] ) ) {
$url = '';
if ( ! empty( $parsed_url['scheme'] ) ) {
$url = $parsed_url['scheme'] . ':';
}
$url .= '//' . $parsed_url['host'];
if ( ! empty( $parsed_url['port'] ) ) {
$url .= ':' . $parsed_url['port'];
}
if ( ! empty( $parsed_url['path'] ) ) {
$url .= $parsed_url['path'];
}
if ( ! empty( $parsed_url['query'] ) ) {
$url .= '?' . $parsed_url['query'];
}
}
return $url;
}
/**
* Attempts to guess the correct URL for a 404 request based on query vars.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return string|false The correct URL if one is found. False on failure.
*/
function redirect_guess_404_permalink() {
global $wpdb;
/**
* Filters whether to attempt to guess a redirect URL for a 404 request.
*
* Returning a false value from the filter will disable the URL guessing
* and return early without performing a redirect.
*
* @since 5.5.0
*
* @param bool $do_redirect_guess Whether to attempt to guess a redirect URL
* for a 404 request. Default true.
*/
if ( false === apply_filters( 'do_redirect_guess_404_permalink', true ) ) {
return false;
}
/**
* Short-circuits the redirect URL guessing for 404 requests.
*
* Returning a non-null value from the filter will effectively short-circuit
* the URL guessing, returning the passed value instead.
*
* @since 5.5.0
*
* @param null|string|false $pre Whether to short-circuit guessing the redirect for a 404.
* Default null to continue with the URL guessing.
*/
$pre = apply_filters( 'pre_redirect_guess_404_permalink', null );
if ( null !== $pre ) {
return $pre;
}
if ( get_query_var( 'name' ) ) {
$publicly_viewable_statuses = array_filter( get_post_stati(), 'is_post_status_viewable' );
$publicly_viewable_post_types = array_filter( get_post_types( array( 'exclude_from_search' => false ) ), 'is_post_type_viewable' );
/**
* Filters whether to perform a strict guess for a 404 redirect.
*
* Returning a truthy value from the filter will redirect only exact post_name matches.
*
* @since 5.5.0
*
* @param bool $strict_guess Whether to perform a strict guess. Default false (loose guess).
*/
$strict_guess = apply_filters( 'strict_redirect_guess_404_permalink', false );
if ( $strict_guess ) {
$where = $wpdb->prepare( 'post_name = %s', get_query_var( 'name' ) );
} else {
$where = $wpdb->prepare( 'post_name LIKE %s', $wpdb->esc_like( get_query_var( 'name' ) ) . '%' );
}
// If any of post_type, year, monthnum, or day are set, use them to refine the query.
if ( get_query_var( 'post_type' ) ) {
if ( is_array( get_query_var( 'post_type' ) ) ) {
$post_types = array_intersect( get_query_var( 'post_type' ), $publicly_viewable_post_types );
if ( empty( $post_types ) ) {
return false;
}
$where .= " AND post_type IN ('" . join( "', '", esc_sql( get_query_var( 'post_type' ) ) ) . "')";
} else {
if ( ! in_array( get_query_var( 'post_type' ), $publicly_viewable_post_types, true ) ) {
return false;
}
$where .= $wpdb->prepare( ' AND post_type = %s', get_query_var( 'post_type' ) );
}
} else {
$where .= " AND post_type IN ('" . implode( "', '", esc_sql( $publicly_viewable_post_types ) ) . "')";
}
if ( get_query_var( 'year' ) ) {
$where .= $wpdb->prepare( ' AND YEAR(post_date) = %d', get_query_var( 'year' ) );
}
if ( get_query_var( 'monthnum' ) ) {
$where .= $wpdb->prepare( ' AND MONTH(post_date) = %d', get_query_var( 'monthnum' ) );
}
if ( get_query_var( 'day' ) ) {
$where .= $wpdb->prepare( ' AND DAYOFMONTH(post_date) = %d', get_query_var( 'day' ) );
}
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$post_id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE $where AND post_status IN ('" . implode( "', '", esc_sql( $publicly_viewable_statuses ) ) . "')" );
if ( ! $post_id ) {
return false;
}
if ( get_query_var( 'feed' ) ) {
return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
} elseif ( get_query_var( 'page' ) > 1 ) {
return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
} else {
return get_permalink( $post_id );
}
}
return false;
}
/**
* Redirects a variety of shorthand URLs to the admin.
*
* If a user visits example.com/admin, they'll be redirected to /wp-admin.
* Visiting /login redirects to /wp-login.php, and so on.
*
* @since 3.4.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*/
function wp_redirect_admin_locations() {
global $wp_rewrite;
if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) {
return;
}
$admins = array(
home_url( 'wp-admin', 'relative' ),
home_url( 'dashboard', 'relative' ),
home_url( 'admin', 'relative' ),
site_url( 'dashboard', 'relative' ),
site_url( 'admin', 'relative' ),
);
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $admins, true ) ) {
wp_redirect( admin_url() );
exit;
}
$logins = array(
home_url( 'wp-login.php', 'relative' ),
home_url( 'login.php', 'relative' ),
home_url( 'login', 'relative' ),
site_url( 'login', 'relative' ),
);
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins, true ) ) {
wp_redirect( wp_login_url() );
exit;
}
}
/**
* REST API: WP_REST_Attachments_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 4.7.0
*/
/**
* Core controller used to access attachments via the REST API.
*
* @since 4.7.0
*
* @see WP_REST_Posts_Controller
*/
class WP_REST_Attachments_Controller extends WP_REST_Posts_Controller {
/**
* Whether the controller supports batching.
*
* @since 5.9.0
* @var false
*/
protected $allow_batch = false;
/**
* Registers the routes for attachments.
*
* @since 5.3.0
*
* @see register_rest_route()
*/
public function register_routes() {
parent::register_routes();
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P[\d]+)/post-process',
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'post_process_item' ),
'permission_callback' => array( $this, 'post_process_item_permissions_check' ),
'args' => array(
'id' => array(
'description' => __( 'Unique identifier for the attachment.' ),
'type' => 'integer',
),
'action' => array(
'type' => 'string',
'enum' => array( 'create-image-subsizes' ),
'required' => true,
),
),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P[\d]+)/edit',
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'edit_media_item' ),
'permission_callback' => array( $this, 'edit_media_item_permissions_check' ),
'args' => $this->get_edit_media_item_args(),
)
);
}
/**
* Determines the allowed query_vars for a get_items() response and
* prepares for WP_Query.
*
* @since 4.7.0
* @since 6.9.0 Extends the `media_type` and `mime_type` request arguments to support array values.
*
* @param array $prepared_args Optional. Array of prepared arguments. Default empty array.
* @param WP_REST_Request $request Optional. Request to prepare items for.
* @return array Array of query arguments.
*/
protected function prepare_items_query( $prepared_args = array(), $request = null ) {
$query_args = parent::prepare_items_query( $prepared_args, $request );
if ( empty( $query_args['post_status'] ) ) {
$query_args['post_status'] = 'inherit';
}
$all_mime_types = array();
$media_types = $this->get_media_types();
if ( ! empty( $request['media_type'] ) && is_array( $request['media_type'] ) ) {
foreach ( $request['media_type'] as $type ) {
if ( isset( $media_types[ $type ] ) ) {
$all_mime_types = array_merge( $all_mime_types, $media_types[ $type ] );
}
}
}
if ( ! empty( $request['mime_type'] ) && is_array( $request['mime_type'] ) ) {
foreach ( $request['mime_type'] as $mime_type ) {
$parts = explode( '/', $mime_type );
if ( isset( $media_types[ $parts[0] ] ) && in_array( $mime_type, $media_types[ $parts[0] ], true ) ) {
$all_mime_types[] = $mime_type;
}
}
}
if ( ! empty( $all_mime_types ) ) {
$query_args['post_mime_type'] = array_values( array_unique( $all_mime_types ) );
}
// Filter query clauses to include filenames.
if ( isset( $query_args['s'] ) ) {
add_filter( 'wp_allow_query_attachment_by_filename', '__return_true' );
}
return $query_args;
}
/**
* Checks if a given request has access to create an attachment.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error Boolean true if the attachment may be created, or a WP_Error if not.
*/
public function create_item_permissions_check( $request ) {
$ret = parent::create_item_permissions_check( $request );
if ( ! $ret || is_wp_error( $ret ) ) {
return $ret;
}
if ( ! current_user_can( 'upload_files' ) ) {
return new WP_Error(
'rest_cannot_create',
__( 'Sorry, you are not allowed to upload media on this site.' ),
array( 'status' => 400 )
);
}
// Attaching media to a post requires ability to edit said post.
if ( ! empty( $request['post'] ) && ! current_user_can( 'edit_post', (int) $request['post'] ) ) {
return new WP_Error(
'rest_cannot_edit',
__( 'Sorry, you are not allowed to upload media to this post.' ),
array( 'status' => rest_authorization_required_code() )
);
}
$files = $request->get_file_params();
/**
* Filter whether the server should prevent uploads for image types it doesn't support. Default true.
*
* Developers can use this filter to enable uploads of certain image types. By default image types that are not
* supported by the server are prevented from being uploaded.
*
* @since 6.8.0
*
* @param bool $check_mime Whether to prevent uploads of unsupported image types.
* @param string|null $mime_type The mime type of the file being uploaded (if available).
*/
$prevent_unsupported_uploads = apply_filters( 'wp_prevent_unsupported_mime_type_uploads', true, isset( $files['file']['type'] ) ? $files['file']['type'] : null );
// If the upload is an image, check if the server can handle the mime type.
if (
$prevent_unsupported_uploads &&
isset( $files['file']['type'] ) &&
str_starts_with( $files['file']['type'], 'image/' )
) {
// List of non-resizable image formats.
$editor_non_resizable_formats = array(
'image/svg+xml',
);
// Check if the image editor supports the type or ignore if it isn't a format resizable by an editor.
if (
! in_array( $files['file']['type'], $editor_non_resizable_formats, true ) &&
! wp_image_editor_supports( array( 'mime_type' => $files['file']['type'] ) )
) {
return new WP_Error(
'rest_upload_image_type_not_supported',
__( 'The web server cannot generate responsive image sizes for this image. Convert it to JPEG or PNG before uploading.' ),
array( 'status' => 400 )
);
}
}
return true;
}
/**
* Creates a single attachment.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure.
*/
public function create_item( $request ) {
if ( ! empty( $request['post'] ) && in_array( get_post_type( $request['post'] ), array( 'revision', 'attachment' ), true ) ) {
return new WP_Error(
'rest_invalid_param',
__( 'Invalid parent type.' ),
array( 'status' => 400 )
);
}
$insert = $this->insert_attachment( $request );
if ( is_wp_error( $insert ) ) {
return $insert;
}
$schema = $this->get_item_schema();
// Extract by name.
$attachment_id = $insert['attachment_id'];
$file = $insert['file'];
if ( isset( $request['alt_text'] ) ) {
update_post_meta( $attachment_id, '_wp_attachment_image_alt', sanitize_text_field( $request['alt_text'] ) );
}
if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {
$thumbnail_update = $this->handle_featured_media( $request['featured_media'], $attachment_id );
if ( is_wp_error( $thumbnail_update ) ) {
return $thumbnail_update;
}
}
if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
$meta_update = $this->meta->update_value( $request['meta'], $attachment_id );
if ( is_wp_error( $meta_update ) ) {
return $meta_update;
}
}
$attachment = get_post( $attachment_id );
$fields_update = $this->update_additional_fields_for_object( $attachment, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$terms_update = $this->handle_terms( $attachment_id, $request );
if ( is_wp_error( $terms_update ) ) {
return $terms_update;
}
$request->set_param( 'context', 'edit' );
/**
* Fires after a single attachment is completely created or updated via the REST API.
*
* @since 5.0.0
*
* @param WP_Post $attachment Inserted or updated attachment object.
* @param WP_REST_Request $request Request object.
* @param bool $creating True when creating an attachment, false when updating.
*/
do_action( 'rest_after_insert_attachment', $attachment, $request, true );
wp_after_insert_post( $attachment, false, null );
if ( wp_is_serving_rest_request() ) {
/*
* Set a custom header with the attachment_id.
* Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
*/
header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
}
// Include media and image functions to get access to wp_generate_attachment_metadata().
require_once ABSPATH . 'wp-admin/includes/media.php';
require_once ABSPATH . 'wp-admin/includes/image.php';
/*
* Post-process the upload (create image sub-sizes, make PDF thumbnails, etc.) and insert attachment meta.
* At this point the server may run out of resources and post-processing of uploaded images may fail.
*/
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
$response = $this->prepare_item_for_response( $attachment, $request );
$response = rest_ensure_response( $response );
$response->set_status( 201 );
$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $attachment_id ) ) );
return $response;
}
/**
* Inserts the attachment post in the database. Does not update the attachment meta.
*
* @since 5.3.0
*
* @param WP_REST_Request $request
* @return array|WP_Error
*/
protected function insert_attachment( $request ) {
// Get the file via $_FILES or raw data.
$files = $request->get_file_params();
$headers = $request->get_headers();
$time = null;
// Matches logic in media_handle_upload().
if ( ! empty( $request['post'] ) ) {
$post = get_post( $request['post'] );
// The post date doesn't usually matter for pages, so don't backdate this upload.
if ( $post && 'page' !== $post->post_type && substr( $post->post_date, 0, 4 ) > 0 ) {
$time = $post->post_date;
}
}
if ( ! empty( $files ) ) {
$file = $this->upload_from_file( $files, $headers, $time );
} else {
$file = $this->upload_from_data( $request->get_body(), $headers, $time );
}
if ( is_wp_error( $file ) ) {
return $file;
}
$name = wp_basename( $file['file'] );
$name_parts = pathinfo( $name );
$name = trim( substr( $name, 0, -( 1 + strlen( $name_parts['extension'] ) ) ) );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
// Include image functions to get access to wp_read_image_metadata().
require_once ABSPATH . 'wp-admin/includes/image.php';
// Use image exif/iptc data for title and caption defaults if possible.
$image_meta = wp_read_image_metadata( $file );
if ( ! empty( $image_meta ) ) {
if ( empty( $request['title'] ) && trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
$request['title'] = $image_meta['title'];
}
if ( empty( $request['caption'] ) && trim( $image_meta['caption'] ) ) {
$request['caption'] = $image_meta['caption'];
}
}
$attachment = $this->prepare_item_for_database( $request );
$attachment->post_mime_type = $type;
$attachment->guid = $url;
// If the title was not set, use the original filename.
if ( empty( $attachment->post_title ) && ! empty( $files['file']['name'] ) ) {
// Remove the file extension (after the last `.`)
$tmp_title = substr( $files['file']['name'], 0, strrpos( $files['file']['name'], '.' ) );
if ( ! empty( $tmp_title ) ) {
$attachment->post_title = $tmp_title;
}
}
// Fall back to the original approach.
if ( empty( $attachment->post_title ) ) {
$attachment->post_title = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
}
// $post_parent is inherited from $attachment['post_parent'].
$id = wp_insert_attachment( wp_slash( (array) $attachment ), $file, 0, true, false );
if ( is_wp_error( $id ) ) {
if ( 'db_update_error' === $id->get_error_code() ) {
$id->add_data( array( 'status' => 500 ) );
} else {
$id->add_data( array( 'status' => 400 ) );
}
return $id;
}
$attachment = get_post( $id );
/**
* Fires after a single attachment is created or updated via the REST API.
*
* @since 4.7.0
*
* @param WP_Post $attachment Inserted or updated attachment object.
* @param WP_REST_Request $request The request sent to the API.
* @param bool $creating True when creating an attachment, false when updating.
*/
do_action( 'rest_insert_attachment', $attachment, $request, true );
return array(
'attachment_id' => $id,
'file' => $file,
);
}
/**
* Determines the featured media based on a request param.
*
* @since 6.5.0
*
* @param int $featured_media Featured Media ID.
* @param int $post_id Post ID.
* @return bool|WP_Error Whether the post thumbnail was successfully deleted, otherwise WP_Error.
*/
protected function handle_featured_media( $featured_media, $post_id ) {
$post_type = get_post_type( $post_id );
$thumbnail_support = current_theme_supports( 'post-thumbnails', $post_type ) && post_type_supports( $post_type, 'thumbnail' );
// Similar check as in wp_insert_post().
if ( ! $thumbnail_support && get_post_mime_type( $post_id ) ) {
if ( wp_attachment_is( 'audio', $post_id ) ) {
$thumbnail_support = post_type_supports( 'attachment:audio', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:audio' );
} elseif ( wp_attachment_is( 'video', $post_id ) ) {
$thumbnail_support = post_type_supports( 'attachment:video', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:video' );
}
}
if ( $thumbnail_support ) {
return parent::handle_featured_media( $featured_media, $post_id );
}
return new WP_Error(
'rest_no_featured_media',
sprintf(
/* translators: %s: attachment mime type */
__( 'This site does not support post thumbnails on attachments with MIME type %s.' ),
get_post_mime_type( $post_id )
),
array( 'status' => 400 )
);
}
/**
* Updates a single attachment.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure.
*/
public function update_item( $request ) {
if ( ! empty( $request['post'] ) && in_array( get_post_type( $request['post'] ), array( 'revision', 'attachment' ), true ) ) {
return new WP_Error(
'rest_invalid_param',
__( 'Invalid parent type.' ),
array( 'status' => 400 )
);
}
$attachment_before = get_post( $request['id'] );
$response = parent::update_item( $request );
if ( is_wp_error( $response ) ) {
return $response;
}
$response = rest_ensure_response( $response );
$data = $response->get_data();
if ( isset( $request['alt_text'] ) ) {
update_post_meta( $data['id'], '_wp_attachment_image_alt', $request['alt_text'] );
}
$attachment = get_post( $request['id'] );
if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {
$thumbnail_update = $this->handle_featured_media( $request['featured_media'], $attachment->ID );
if ( is_wp_error( $thumbnail_update ) ) {
return $thumbnail_update;
}
}
$fields_update = $this->update_additional_fields_for_object( $attachment, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$request->set_param( 'context', 'edit' );
/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php */
do_action( 'rest_after_insert_attachment', $attachment, $request, false );
wp_after_insert_post( $attachment, true, $attachment_before );
$response = $this->prepare_item_for_response( $attachment, $request );
$response = rest_ensure_response( $response );
return $response;
}
/**
* Performs post-processing on an attachment.
*
* @since 5.3.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure.
*/
public function post_process_item( $request ) {
switch ( $request['action'] ) {
case 'create-image-subsizes':
require_once ABSPATH . 'wp-admin/includes/image.php';
wp_update_image_subsizes( $request['id'] );
break;
}
$request['context'] = 'edit';
return $this->prepare_item_for_response( get_post( $request['id'] ), $request );
}
/**
* Checks if a given request can perform post-processing on an attachment.
*
* @since 5.3.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to update the item, WP_Error object otherwise.
*/
public function post_process_item_permissions_check( $request ) {
return $this->update_item_permissions_check( $request );
}
/**
* Checks if a given request has access to editing media.
*
* @since 5.5.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
*/
public function edit_media_item_permissions_check( $request ) {
if ( ! current_user_can( 'upload_files' ) ) {
return new WP_Error(
'rest_cannot_edit_image',
__( 'Sorry, you are not allowed to upload media on this site.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return $this->update_item_permissions_check( $request );
}
/**
* Applies edits to a media item and creates a new attachment record.
*
* @since 5.5.0
* @since 6.9.0 Adds flips capability and editable fields for the newly-created attachment post.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure.
*/
public function edit_media_item( $request ) {
require_once ABSPATH . 'wp-admin/includes/image.php';
$attachment_id = $request['id'];
// This also confirms the attachment is an image.
$image_file = wp_get_original_image_path( $attachment_id );
$image_meta = wp_get_attachment_metadata( $attachment_id );
if (
! $image_meta ||
! $image_file ||
! wp_image_file_matches_image_meta( $request['src'], $image_meta, $attachment_id )
) {
return new WP_Error(
'rest_unknown_attachment',
__( 'Unable to get meta information for file.' ),
array( 'status' => 404 )
);
}
$supported_types = array( 'image/jpeg', 'image/png', 'image/gif', 'image/webp', 'image/avif', 'image/heic' );
$mime_type = get_post_mime_type( $attachment_id );
if ( ! in_array( $mime_type, $supported_types, true ) ) {
return new WP_Error(
'rest_cannot_edit_file_type',
__( 'This type of file cannot be edited.' ),
array( 'status' => 400 )
);
}
// The `modifiers` param takes precedence over the older format.
if ( isset( $request['modifiers'] ) ) {
$modifiers = $request['modifiers'];
} else {
$modifiers = array();
if ( isset( $request['flip']['horizontal'] ) || isset( $request['flip']['vertical'] ) ) {
$flip_args = array(
'vertical' => isset( $request['flip']['vertical'] ) ? (bool) $request['flip']['vertical'] : false,
'horizontal' => isset( $request['flip']['horizontal'] ) ? (bool) $request['flip']['horizontal'] : false,
);
$modifiers[] = array(
'type' => 'flip',
'args' => array(
'flip' => $flip_args,
),
);
}
if ( ! empty( $request['rotation'] ) ) {
$modifiers[] = array(
'type' => 'rotate',
'args' => array(
'angle' => $request['rotation'],
),
);
}
if ( isset( $request['x'], $request['y'], $request['width'], $request['height'] ) ) {
$modifiers[] = array(
'type' => 'crop',
'args' => array(
'left' => $request['x'],
'top' => $request['y'],
'width' => $request['width'],
'height' => $request['height'],
),
);
}
if ( 0 === count( $modifiers ) ) {
return new WP_Error(
'rest_image_not_edited',
__( 'The image was not edited. Edit the image before applying the changes.' ),
array( 'status' => 400 )
);
}
}
/*
* If the file doesn't exist, attempt a URL fopen on the src link.
* This can occur with certain file replication plugins.
* Keep the original file path to get a modified name later.
*/
$image_file_to_edit = $image_file;
if ( ! file_exists( $image_file_to_edit ) ) {
$image_file_to_edit = _load_image_to_edit_path( $attachment_id );
}
$image_editor = wp_get_image_editor( $image_file_to_edit );
if ( is_wp_error( $image_editor ) ) {
return new WP_Error(
'rest_unknown_image_file_type',
__( 'Unable to edit this image.' ),
array( 'status' => 500 )
);
}
foreach ( $modifiers as $modifier ) {
$args = $modifier['args'];
switch ( $modifier['type'] ) {
case 'flip':
/*
* Flips the current image.
* The vertical flip is the first argument (flip along horizontal axis), the horizontal flip is the second argument (flip along vertical axis).
* See: WP_Image_Editor::flip()
*/
$result = $image_editor->flip( $args['flip']['vertical'], $args['flip']['horizontal'] );
if ( is_wp_error( $result ) ) {
return new WP_Error(
'rest_image_flip_failed',
__( 'Unable to flip this image.' ),
array( 'status' => 500 )
);
}
break;
case 'rotate':
// Rotation direction: clockwise vs. counterclockwise.
$rotate = 0 - $args['angle'];
if ( 0 !== $rotate ) {
$result = $image_editor->rotate( $rotate );
if ( is_wp_error( $result ) ) {
return new WP_Error(
'rest_image_rotation_failed',
__( 'Unable to rotate this image.' ),
array( 'status' => 500 )
);
}
}
break;
case 'crop':
$size = $image_editor->get_size();
$crop_x = (int) round( ( $size['width'] * $args['left'] ) / 100.0 );
$crop_y = (int) round( ( $size['height'] * $args['top'] ) / 100.0 );
$width = (int) round( ( $size['width'] * $args['width'] ) / 100.0 );
$height = (int) round( ( $size['height'] * $args['height'] ) / 100.0 );
if ( $size['width'] !== $width || $size['height'] !== $height ) {
$result = $image_editor->crop( $crop_x, $crop_y, $width, $height );
if ( is_wp_error( $result ) ) {
return new WP_Error(
'rest_image_crop_failed',
__( 'Unable to crop this image.' ),
array( 'status' => 500 )
);
}
}
break;
}
}
// Calculate the file name.
$image_ext = pathinfo( $image_file, PATHINFO_EXTENSION );
$image_name = wp_basename( $image_file, ".{$image_ext}" );
/*
* Do not append multiple `-edited` to the file name.
* The user may be editing a previously edited image.
*/
if ( preg_match( '/-edited(-\d+)?$/', $image_name ) ) {
// Remove any `-1`, `-2`, etc. `wp_unique_filename()` will add the proper number.
$image_name = preg_replace( '/-edited(-\d+)?$/', '-edited', $image_name );
} else {
// Append `-edited` before the extension.
$image_name .= '-edited';
}
$filename = "{$image_name}.{$image_ext}";
// Create the uploads subdirectory if needed.
$uploads = wp_upload_dir();
// Make the file name unique in the (new) upload directory.
$filename = wp_unique_filename( $uploads['path'], $filename );
// Save to disk.
$saved = $image_editor->save( $uploads['path'] . "/$filename" );
if ( is_wp_error( $saved ) ) {
return $saved;
}
// Grab original attachment post so we can use it to set defaults.
$original_attachment_post = get_post( $attachment_id );
// Check request fields and assign default values.
$new_attachment_post = $this->prepare_item_for_database( $request );
$new_attachment_post->post_mime_type = $saved['mime-type'];
$new_attachment_post->guid = $uploads['url'] . "/$filename";
// Unset ID so wp_insert_attachment generates a new ID.
unset( $new_attachment_post->ID );
// Set new attachment post title with fallbacks.
$new_attachment_post->post_title = $new_attachment_post->post_title ?? $original_attachment_post->post_title ?? $image_name;
// Set new attachment post caption (post_excerpt).
$new_attachment_post->post_excerpt = $new_attachment_post->post_excerpt ?? $original_attachment_post->post_excerpt ?? '';
// Set new attachment post description (post_content) with fallbacks.
$new_attachment_post->post_content = $new_attachment_post->post_content ?? $original_attachment_post->post_content ?? '';
// Set post parent if set in request, else the default of `0` (no parent).
$new_attachment_post->post_parent = $new_attachment_post->post_parent ?? 0;
// Insert the new attachment post.
$new_attachment_id = wp_insert_attachment( wp_slash( (array) $new_attachment_post ), $saved['path'], 0, true );
if ( is_wp_error( $new_attachment_id ) ) {
if ( 'db_update_error' === $new_attachment_id->get_error_code() ) {
$new_attachment_id->add_data( array( 'status' => 500 ) );
} else {
$new_attachment_id->add_data( array( 'status' => 400 ) );
}
return $new_attachment_id;
}
// First, try to use the alt text from the request. If not set, copy the image alt text from the original attachment.
$image_alt = isset( $request['alt_text'] ) ? sanitize_text_field( $request['alt_text'] ) : get_post_meta( $attachment_id, '_wp_attachment_image_alt', true );
if ( ! empty( $image_alt ) ) {
// update_post_meta() expects slashed.
update_post_meta( $new_attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
}
if ( wp_is_serving_rest_request() ) {
/*
* Set a custom header with the attachment_id.
* Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
*/
header( 'X-WP-Upload-Attachment-ID: ' . $new_attachment_id );
}
// Generate image sub-sizes and meta.
$new_image_meta = wp_generate_attachment_metadata( $new_attachment_id, $saved['path'] );
// Copy the EXIF metadata from the original attachment if not generated for the edited image.
if ( isset( $image_meta['image_meta'] ) && isset( $new_image_meta['image_meta'] ) && is_array( $new_image_meta['image_meta'] ) ) {
// Merge but skip empty values.
foreach ( (array) $image_meta['image_meta'] as $key => $value ) {
if ( empty( $new_image_meta['image_meta'][ $key ] ) && ! empty( $value ) ) {
$new_image_meta['image_meta'][ $key ] = $value;
}
}
}
// Reset orientation. At this point the image is edited and orientation is correct.
if ( ! empty( $new_image_meta['image_meta']['orientation'] ) ) {
$new_image_meta['image_meta']['orientation'] = 1;
}
// The attachment_id may change if the site is exported and imported.
$new_image_meta['parent_image'] = array(
'attachment_id' => $attachment_id,
// Path to the originally uploaded image file relative to the uploads directory.
'file' => _wp_relative_upload_path( $image_file ),
);
/**
* Filters the meta data for the new image created by editing an existing image.
*
* @since 5.5.0
*
* @param array $new_image_meta Meta data for the new image.
* @param int $new_attachment_id Attachment post ID for the new image.
* @param int $attachment_id Attachment post ID for the edited (parent) image.
*/
$new_image_meta = apply_filters( 'wp_edited_image_metadata', $new_image_meta, $new_attachment_id, $attachment_id );
wp_update_attachment_metadata( $new_attachment_id, $new_image_meta );
$response = $this->prepare_item_for_response( get_post( $new_attachment_id ), $request );
$response->set_status( 201 );
$response->header( 'Location', rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $new_attachment_id ) ) );
return $response;
}
/**
* Prepares a single attachment for create or update.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Request object.
* @return stdClass|WP_Error Post object.
*/
protected function prepare_item_for_database( $request ) {
$prepared_attachment = parent::prepare_item_for_database( $request );
// Attachment caption (post_excerpt internally).
if ( isset( $request['caption'] ) ) {
if ( is_string( $request['caption'] ) ) {
$prepared_attachment->post_excerpt = $request['caption'];
} elseif ( isset( $request['caption']['raw'] ) ) {
$prepared_attachment->post_excerpt = $request['caption']['raw'];
}
}
// Attachment description (post_content internally).
if ( isset( $request['description'] ) ) {
if ( is_string( $request['description'] ) ) {
$prepared_attachment->post_content = $request['description'];
} elseif ( isset( $request['description']['raw'] ) ) {
$prepared_attachment->post_content = $request['description']['raw'];
}
}
if ( isset( $request['post'] ) ) {
$prepared_attachment->post_parent = (int) $request['post'];
}
return $prepared_attachment;
}
/**
* Prepares a single attachment output for response.
*
* @since 4.7.0
* @since 5.9.0 Renamed `$post` to `$item` to match parent class for PHP 8 named parameter support.
*
* @param WP_Post $item Attachment object.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response Response object.
*/
public function prepare_item_for_response( $item, $request ) {
// Restores the more descriptive, specific name for use within this method.
$post = $item;
$response = parent::prepare_item_for_response( $post, $request );
$fields = $this->get_fields_for_response( $request );
$data = $response->get_data();
if ( in_array( 'description', $fields, true ) ) {
$data['description'] = array(
'raw' => $post->post_content,
/** This filter is documented in wp-includes/post-template.php */
'rendered' => apply_filters( 'the_content', $post->post_content ),
);
}
if ( in_array( 'caption', $fields, true ) ) {
/** This filter is documented in wp-includes/post-template.php */
$caption = apply_filters( 'get_the_excerpt', $post->post_excerpt, $post );
/** This filter is documented in wp-includes/post-template.php */
$caption = apply_filters( 'the_excerpt', $caption );
$data['caption'] = array(
'raw' => $post->post_excerpt,
'rendered' => $caption,
);
}
if ( in_array( 'alt_text', $fields, true ) ) {
$data['alt_text'] = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
}
if ( in_array( 'media_type', $fields, true ) ) {
$data['media_type'] = wp_attachment_is_image( $post->ID ) ? 'image' : 'file';
}
if ( in_array( 'mime_type', $fields, true ) ) {
$data['mime_type'] = $post->post_mime_type;
}
if ( in_array( 'media_details', $fields, true ) ) {
$data['media_details'] = wp_get_attachment_metadata( $post->ID );
// Ensure empty details is an empty object.
if ( empty( $data['media_details'] ) ) {
$data['media_details'] = new stdClass();
} elseif ( ! empty( $data['media_details']['sizes'] ) ) {
foreach ( $data['media_details']['sizes'] as $size => &$size_data ) {
if ( isset( $size_data['mime-type'] ) ) {
$size_data['mime_type'] = $size_data['mime-type'];
unset( $size_data['mime-type'] );
}
// Use the same method image_downsize() does.
$image_src = wp_get_attachment_image_src( $post->ID, $size );
if ( ! $image_src ) {
continue;
}
$size_data['source_url'] = $image_src[0];
}
$full_src = wp_get_attachment_image_src( $post->ID, 'full' );
if ( ! empty( $full_src ) ) {
$data['media_details']['sizes']['full'] = array(
'file' => wp_basename( $full_src[0] ),
'width' => $full_src[1],
'height' => $full_src[2],
'mime_type' => $post->post_mime_type,
'source_url' => $full_src[0],
);
}
} else {
$data['media_details']['sizes'] = new stdClass();
}
}
if ( in_array( 'post', $fields, true ) ) {
$data['post'] = ! empty( $post->post_parent ) ? (int) $post->post_parent : null;
}
if ( in_array( 'source_url', $fields, true ) ) {
$data['source_url'] = wp_get_attachment_url( $post->ID );
}
if ( in_array( 'missing_image_sizes', $fields, true ) ) {
require_once ABSPATH . 'wp-admin/includes/image.php';
$data['missing_image_sizes'] = array_keys( wp_get_missing_image_subsizes( $post->ID ) );
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->filter_response_by_context( $data, $context );
$links = $response->get_links();
// Wrap the data in a response object.
$response = rest_ensure_response( $data );
foreach ( $links as $rel => $rel_links ) {
foreach ( $rel_links as $link ) {
$response->add_link( $rel, $link['href'], $link['attributes'] );
}
}
/**
* Filters an attachment returned from the REST API.
*
* Allows modification of the attachment right before it is returned.
*
* @since 4.7.0
*
* @param WP_REST_Response $response The response object.
* @param WP_Post $post The original attachment post.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( 'rest_prepare_attachment', $response, $post, $request );
}
/**
* Prepares attachment links for the request.
*
* @since 6.9.0
*
* @param WP_Post $post Post object.
* @return array Links for the given attachment.
*/
protected function prepare_links( $post ) {
$links = parent::prepare_links( $post );
if ( ! empty( $post->post_parent ) ) {
$post = get_post( $post->post_parent );
if ( ! empty( $post ) ) {
$links['https://api.w.org/attached-to'] = array(
'href' => rest_url( rest_get_route_for_post( $post ) ),
'embeddable' => true,
'post_type' => $post->post_type,
'id' => $post->ID,
);
}
}
return $links;
}
/**
* Retrieves the attachment's schema, conforming to JSON Schema.
*
* @since 4.7.0
*
* @return array Item schema as an array.
*/
public function get_item_schema() {
if ( $this->schema ) {
return $this->add_additional_fields_schema( $this->schema );
}
$schema = parent::get_item_schema();
$schema['properties']['alt_text'] = array(
'description' => __( 'Alternative text to display when attachment is not displayed.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'arg_options' => array(
'sanitize_callback' => 'sanitize_text_field',
),
);
$schema['properties']['caption'] = array(
'description' => __( 'The attachment caption.' ),
'type' => 'object',
'context' => array( 'view', 'edit', 'embed' ),
'arg_options' => array(
'sanitize_callback' => null, // Note: sanitization implemented in self::prepare_item_for_database().
'validate_callback' => null, // Note: validation implemented in self::prepare_item_for_database().
),
'properties' => array(
'raw' => array(
'description' => __( 'Caption for the attachment, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
'rendered' => array(
'description' => __( 'HTML caption for the attachment, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
),
);
$schema['properties']['description'] = array(
'description' => __( 'The attachment description.' ),
'type' => 'object',
'context' => array( 'view', 'edit' ),
'arg_options' => array(
'sanitize_callback' => null, // Note: sanitization implemented in self::prepare_item_for_database().
'validate_callback' => null, // Note: validation implemented in self::prepare_item_for_database().
),
'properties' => array(
'raw' => array(
'description' => __( 'Description for the attachment, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
'rendered' => array(
'description' => __( 'HTML description for the attachment, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
),
);
$schema['properties']['media_type'] = array(
'description' => __( 'Attachment type.' ),
'type' => 'string',
'enum' => array( 'image', 'file' ),
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
);
$schema['properties']['mime_type'] = array(
'description' => __( 'The attachment MIME type.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
);
$schema['properties']['media_details'] = array(
'description' => __( 'Details about the media file, specific to its type.' ),
'type' => 'object',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
);
$schema['properties']['post'] = array(
'description' => __( 'The ID for the associated post of the attachment.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
$schema['properties']['source_url'] = array(
'description' => __( 'URL to the original attachment file.' ),
'type' => 'string',
'format' => 'uri',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
);
$schema['properties']['missing_image_sizes'] = array(
'description' => __( 'List of the missing image sizes of the attachment.' ),
'type' => 'array',
'items' => array( 'type' => 'string' ),
'context' => array( 'edit' ),
'readonly' => true,
);
unset( $schema['properties']['password'] );
$this->schema = $schema;
return $this->add_additional_fields_schema( $this->schema );
}
/**
* Handles an upload via raw POST data.
*
* @since 4.7.0
* @since 6.6.0 Added the `$time` parameter.
*
* @param string $data Supplied file data.
* @param array $headers HTTP headers from the request.
* @param string|null $time Optional. Time formatted in 'yyyy/mm'. Default null.
* @return array|WP_Error Data from wp_handle_sideload().
*/
protected function upload_from_data( $data, $headers, $time = null ) {
if ( empty( $data ) ) {
return new WP_Error(
'rest_upload_no_data',
__( 'No data supplied.' ),
array( 'status' => 400 )
);
}
if ( empty( $headers['content_type'] ) ) {
return new WP_Error(
'rest_upload_no_content_type',
__( 'No Content-Type supplied.' ),
array( 'status' => 400 )
);
}
if ( empty( $headers['content_disposition'] ) ) {
return new WP_Error(
'rest_upload_no_content_disposition',
__( 'No Content-Disposition supplied.' ),
array( 'status' => 400 )
);
}
$filename = self::get_filename_from_disposition( $headers['content_disposition'] );
if ( empty( $filename ) ) {
return new WP_Error(
'rest_upload_invalid_disposition',
__( 'Invalid Content-Disposition supplied. Content-Disposition needs to be formatted as `attachment; filename="image.png"` or similar.' ),
array( 'status' => 400 )
);
}
if ( ! empty( $headers['content_md5'] ) ) {
$content_md5 = array_shift( $headers['content_md5'] );
$expected = trim( $content_md5 );
$actual = md5( $data );
if ( $expected !== $actual ) {
return new WP_Error(
'rest_upload_hash_mismatch',
__( 'Content hash did not match expected.' ),
array( 'status' => 412 )
);
}
}
// Get the content-type.
$type = array_shift( $headers['content_type'] );
// Include filesystem functions to get access to wp_tempnam() and wp_handle_sideload().
require_once ABSPATH . 'wp-admin/includes/file.php';
// Save the file.
$tmpfname = wp_tempnam( $filename );
$fp = fopen( $tmpfname, 'w+' );
if ( ! $fp ) {
return new WP_Error(
'rest_upload_file_error',
__( 'Could not open file handle.' ),
array( 'status' => 500 )
);
}
fwrite( $fp, $data );
fclose( $fp );
// Now, sideload it in.
$file_data = array(
'error' => null,
'tmp_name' => $tmpfname,
'name' => $filename,
'type' => $type,
);
$size_check = self::check_upload_size( $file_data );
if ( is_wp_error( $size_check ) ) {
return $size_check;
}
$overrides = array(
'test_form' => false,
);
$sideloaded = wp_handle_sideload( $file_data, $overrides, $time );
if ( isset( $sideloaded['error'] ) ) {
@unlink( $tmpfname );
return new WP_Error(
'rest_upload_sideload_error',
$sideloaded['error'],
array( 'status' => 500 )
);
}
return $sideloaded;
}
/**
* Parses filename from a Content-Disposition header value.
*
* As per RFC6266:
*
* content-disposition = "Content-Disposition" ":"
* disposition-type *( ";" disposition-parm )
*
* disposition-type = "inline" | "attachment" | disp-ext-type
* ; case-insensitive
* disp-ext-type = token
*
* disposition-parm = filename-parm | disp-ext-parm
*
* filename-parm = "filename" "=" value
* | "filename*" "=" ext-value
*
* disp-ext-parm = token "=" value
* | ext-token "=" ext-value
* ext-token =
*
* @since 4.7.0
*
* @link https://tools.ietf.org/html/rfc2388
* @link https://tools.ietf.org/html/rfc6266
*
* @param string[] $disposition_header List of Content-Disposition header values.
* @return string|null Filename if available, or null if not found.
*/
public static function get_filename_from_disposition( $disposition_header ) {
// Get the filename.
$filename = null;
foreach ( $disposition_header as $value ) {
$value = trim( $value );
if ( ! str_contains( $value, ';' ) ) {
continue;
}
list( , $attr_parts ) = explode( ';', $value, 2 );
$attr_parts = explode( ';', $attr_parts );
$attributes = array();
foreach ( $attr_parts as $part ) {
if ( ! str_contains( $part, '=' ) ) {
continue;
}
list( $key, $value ) = explode( '=', $part, 2 );
$attributes[ trim( $key ) ] = trim( $value );
}
if ( empty( $attributes['filename'] ) ) {
continue;
}
$filename = trim( $attributes['filename'] );
// Unquote quoted filename, but after trimming.
if ( str_starts_with( $filename, '"' ) && str_ends_with( $filename, '"' ) ) {
$filename = substr( $filename, 1, -1 );
}
}
return $filename;
}
/**
* Retrieves the query params for collections of attachments.
*
* @since 4.7.0
* @since 6.9.0 Extends the `media_type` and `mime_type` request arguments to support array values.
*
* @return array Query parameters for the attachment collection as an array.
*/
public function get_collection_params() {
$params = parent::get_collection_params();
$params['status']['default'] = 'inherit';
$params['status']['items']['enum'] = array( 'inherit', 'private', 'trash' );
$media_types = array_keys( $this->get_media_types() );
$params['media_type'] = array(
'default' => null,
'description' => __( 'Limit result set to attachments of a particular media type or media types.' ),
'type' => 'array',
'items' => array(
'type' => 'string',
'enum' => $media_types,
),
);
$params['mime_type'] = array(
'default' => null,
'description' => __( 'Limit result set to attachments of a particular MIME type or MIME types.' ),
'type' => 'array',
'items' => array(
'type' => 'string',
),
);
return $params;
}
/**
* Handles an upload via multipart/form-data ($_FILES).
*
* @since 4.7.0
* @since 6.6.0 Added the `$time` parameter.
*
* @param array $files Data from the `$_FILES` superglobal.
* @param array $headers HTTP headers from the request.
* @param string|null $time Optional. Time formatted in 'yyyy/mm'. Default null.
* @return array|WP_Error Data from wp_handle_upload().
*/
protected function upload_from_file( $files, $headers, $time = null ) {
if ( empty( $files ) ) {
return new WP_Error(
'rest_upload_no_data',
__( 'No data supplied.' ),
array( 'status' => 400 )
);
}
// Verify hash, if given.
if ( ! empty( $headers['content_md5'] ) ) {
$content_md5 = array_shift( $headers['content_md5'] );
$expected = trim( $content_md5 );
$actual = md5_file( $files['file']['tmp_name'] );
if ( $expected !== $actual ) {
return new WP_Error(
'rest_upload_hash_mismatch',
__( 'Content hash did not match expected.' ),
array( 'status' => 412 )
);
}
}
// Pass off to WP to handle the actual upload.
$overrides = array(
'test_form' => false,
);
// Bypasses is_uploaded_file() when running unit tests.
if ( defined( 'DIR_TESTDATA' ) && DIR_TESTDATA ) {
$overrides['action'] = 'wp_handle_mock_upload';
}
$size_check = self::check_upload_size( $files['file'] );
if ( is_wp_error( $size_check ) ) {
return $size_check;
}
// Include filesystem functions to get access to wp_handle_upload().
require_once ABSPATH . 'wp-admin/includes/file.php';
$file = wp_handle_upload( $files['file'], $overrides, $time );
if ( isset( $file['error'] ) ) {
return new WP_Error(
'rest_upload_unknown_error',
$file['error'],
array( 'status' => 500 )
);
}
return $file;
}
/**
* Retrieves the supported media types.
*
* Media types are considered the MIME type category.
*
* @since 4.7.0
*
* @return array Array of supported media types.
*/
protected function get_media_types() {
$media_types = array();
foreach ( get_allowed_mime_types() as $mime_type ) {
$parts = explode( '/', $mime_type );
if ( ! isset( $media_types[ $parts[0] ] ) ) {
$media_types[ $parts[0] ] = array();
}
$media_types[ $parts[0] ][] = $mime_type;
}
return $media_types;
}
/**
* Determine if uploaded file exceeds space quota on multisite.
*
* Replicates check_upload_size().
*
* @since 4.9.8
*
* @param array $file $_FILES array for a given file.
* @return true|WP_Error True if can upload, error for errors.
*/
protected function check_upload_size( $file ) {
if ( ! is_multisite() ) {
return true;
}
if ( get_site_option( 'upload_space_check_disabled' ) ) {
return true;
}
$space_left = get_upload_space_available();
$file_size = filesize( $file['tmp_name'] );
if ( $space_left < $file_size ) {
return new WP_Error(
'rest_upload_limited_space',
/* translators: %s: Required disk space in kilobytes. */
sprintf( __( 'Not enough space to upload. %s KB needed.' ), number_format( ( $file_size - $space_left ) / KB_IN_BYTES ) ),
array( 'status' => 400 )
);
}
if ( $file_size > ( KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 ) ) ) {
return new WP_Error(
'rest_upload_file_too_big',
/* translators: %s: Maximum allowed file size in kilobytes. */
sprintf( __( 'This file is too big. Files must be less than %s KB in size.' ), get_site_option( 'fileupload_maxk', 1500 ) ),
array( 'status' => 400 )
);
}
// Include multisite admin functions to get access to upload_is_user_over_quota().
require_once ABSPATH . 'wp-admin/includes/ms.php';
if ( upload_is_user_over_quota( false ) ) {
return new WP_Error(
'rest_upload_user_quota_exceeded',
__( 'You have used your space quota. Please delete files before uploading.' ),
array( 'status' => 400 )
);
}
return true;
}
/**
* Gets the request args for the edit item route.
*
* @since 5.5.0
* @since 6.9.0 Adds flips capability and editable fields for the newly-created attachment post.
*
* @return array
*/
protected function get_edit_media_item_args() {
$args = array(
'src' => array(
'description' => __( 'URL to the edited image file.' ),
'type' => 'string',
'format' => 'uri',
'required' => true,
),
// The `modifiers` param takes precedence over the older format.
'modifiers' => array(
'description' => __( 'Array of image edits.' ),
'type' => 'array',
'minItems' => 1,
'items' => array(
'description' => __( 'Image edit.' ),
'type' => 'object',
'required' => array(
'type',
'args',
),
'oneOf' => array(
array(
'title' => __( 'Flip' ),
'properties' => array(
'type' => array(
'description' => __( 'Flip type.' ),
'type' => 'string',
'enum' => array( 'flip' ),
),
'args' => array(
'description' => __( 'Flip arguments.' ),
'type' => 'object',
'required' => array(
'flip',
),
'properties' => array(
'flip' => array(
'description' => __( 'Flip direction.' ),
'type' => 'object',
'required' => array(
'horizontal',
'vertical',
),
'properties' => array(
'horizontal' => array(
'description' => __( 'Whether to flip in the horizontal direction.' ),
'type' => 'boolean',
),
'vertical' => array(
'description' => __( 'Whether to flip in the vertical direction.' ),
'type' => 'boolean',
),
),
),
),
),
),
),
array(
'title' => __( 'Rotation' ),
'properties' => array(
'type' => array(
'description' => __( 'Rotation type.' ),
'type' => 'string',
'enum' => array( 'rotate' ),
),
'args' => array(
'description' => __( 'Rotation arguments.' ),
'type' => 'object',
'required' => array(
'angle',
),
'properties' => array(
'angle' => array(
'description' => __( 'Angle to rotate clockwise in degrees.' ),
'type' => 'number',
),
),
),
),
),
array(
'title' => __( 'Crop' ),
'properties' => array(
'type' => array(
'description' => __( 'Crop type.' ),
'type' => 'string',
'enum' => array( 'crop' ),
),
'args' => array(
'description' => __( 'Crop arguments.' ),
'type' => 'object',
'required' => array(
'left',
'top',
'width',
'height',
),
'properties' => array(
'left' => array(
'description' => __( 'Horizontal position from the left to begin the crop as a percentage of the image width.' ),
'type' => 'number',
),
'top' => array(
'description' => __( 'Vertical position from the top to begin the crop as a percentage of the image height.' ),
'type' => 'number',
),
'width' => array(
'description' => __( 'Width of the crop as a percentage of the image width.' ),
'type' => 'number',
),
'height' => array(
'description' => __( 'Height of the crop as a percentage of the image height.' ),
'type' => 'number',
),
),
),
),
),
),
),
),
'rotation' => array(
'description' => __( 'The amount to rotate the image clockwise in degrees. DEPRECATED: Use `modifiers` instead.' ),
'type' => 'integer',
'minimum' => 0,
'exclusiveMinimum' => true,
'maximum' => 360,
'exclusiveMaximum' => true,
),
'x' => array(
'description' => __( 'As a percentage of the image, the x position to start the crop from. DEPRECATED: Use `modifiers` instead.' ),
'type' => 'number',
'minimum' => 0,
'maximum' => 100,
),
'y' => array(
'description' => __( 'As a percentage of the image, the y position to start the crop from. DEPRECATED: Use `modifiers` instead.' ),
'type' => 'number',
'minimum' => 0,
'maximum' => 100,
),
'width' => array(
'description' => __( 'As a percentage of the image, the width to crop the image to. DEPRECATED: Use `modifiers` instead.' ),
'type' => 'number',
'minimum' => 0,
'maximum' => 100,
),
'height' => array(
'description' => __( 'As a percentage of the image, the height to crop the image to. DEPRECATED: Use `modifiers` instead.' ),
'type' => 'number',
'minimum' => 0,
'maximum' => 100,
),
);
/*
* Get the args based on the post schema. This calls `rest_get_endpoint_args_for_schema()`,
* which also takes care of sanitization and validation.
*/
$update_item_args = $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE );
if ( isset( $update_item_args['caption'] ) ) {
$args['caption'] = $update_item_args['caption'];
}
if ( isset( $update_item_args['description'] ) ) {
$args['description'] = $update_item_args['description'];
}
if ( isset( $update_item_args['title'] ) ) {
$args['title'] = $update_item_args['title'];
}
if ( isset( $update_item_args['post'] ) ) {
$args['post'] = $update_item_args['post'];
}
if ( isset( $update_item_args['alt_text'] ) ) {
$args['alt_text'] = $update_item_args['alt_text'];
}
return $args;
}
}
/**
* Post Data source for Block Bindings.
*
* @since 6.9.0
* @package WordPress
* @subpackage Block Bindings
*/
/**
* Gets value for Post Data source.
*
* @since 6.9.0
* @access private
*
* @param array $source_args Array containing arguments used to look up the source value.
* Example: array( "field" => "foo" ).
* @param WP_Block $block_instance The block instance.
* @return mixed The value computed for the source.
*/
function _block_bindings_post_data_get_value( array $source_args, $block_instance ) {
if ( empty( $source_args['field'] ) ) {
// Backward compatibility for when the source argument was called `key` in Gutenberg plugin.
if ( empty( $source_args['key'] ) ) {
return null;
}
$field = $source_args['key'];
} else {
$field = $source_args['field'];
}
/*
* BACKWARDS COMPATIBILITY: Hardcoded exception for navigation blocks.
* Required for WordPress 6.9+ navigation blocks. DO NOT REMOVE.
*/
$block_name = $block_instance->name ?? '';
$is_navigation_block = in_array(
$block_name,
array( 'core/navigation-link', 'core/navigation-submenu' ),
true
);
if ( $is_navigation_block ) {
// Navigation blocks: read from block attributes.
$post_id = $block_instance->attributes['id'] ?? null;
} else {
// All other blocks: use context.
$post_id = $block_instance->context['postId'] ?? null;
}
// If we don't have an entity ID, bail early.
if ( empty( $post_id ) ) {
return null;
}
// If a post isn't public, we need to prevent unauthorized users from accessing the post data.
$post = get_post( $post_id );
if ( ( ! is_post_publicly_viewable( $post ) && ! current_user_can( 'read_post', $post_id ) ) || post_password_required( $post ) ) {
return null;
}
if ( 'date' === $field ) {
return esc_attr( get_the_date( 'c', $post_id ) );
}
if ( 'modified' === $field ) {
// Only return the modified date if it is later than the publishing date.
if ( get_the_modified_date( 'U', $post_id ) > get_the_date( 'U', $post_id ) ) {
return esc_attr( get_the_modified_date( 'c', $post_id ) );
} else {
return '';
}
}
if ( 'link' === $field ) {
$permalink = get_permalink( $post_id );
return false === $permalink ? null : esc_url( $permalink );
}
}
/**
* Registers Post Data source in the block bindings registry.
*
* @since 6.9.0
* @access private
*/
function _register_block_bindings_post_data_source() {
register_block_bindings_source(
'core/post-data',
array(
'label' => _x( 'Post Data', 'block bindings source' ),
'get_value_callback' => '_block_bindings_post_data_get_value',
'uses_context' => array( 'postId', 'postType' ), // Both are needed on the client side.
)
);
}
add_action( 'init', '_register_block_bindings_post_data_source' );
/**
* Server-side rendering of the `core/query` block.
*
* @package WordPress
*/
/**
* Modifies the static `core/query` block on the server.
*
* @since 6.4.0
*
* @param array $attributes Block attributes.
* @param string $content Block default content.
* @param WP_Block $block The block instance.
*
* @return string Returns the modified output of the query block.
*/
function render_block_core_query( $attributes, $content, $block ) {
$is_interactive = isset( $attributes['enhancedPagination'] )
&& true === $attributes['enhancedPagination']
&& isset( $attributes['queryId'] );
// Enqueue the script module and add the necessary directives if the block is
// interactive.
if ( $is_interactive ) {
wp_enqueue_script_module( '@wordpress/block-library/query/view' );
$p = new WP_HTML_Tag_Processor( $content );
if ( $p->next_tag() ) {
// Add the necessary directives.
$p->set_attribute( 'data-wp-interactive', 'core/query' );
$p->set_attribute( 'data-wp-router-region', 'query-' . $attributes['queryId'] );
$p->set_attribute( 'data-wp-context', '{}' );
$p->set_attribute( 'data-wp-key', $attributes['queryId'] );
$content = $p->get_updated_html();
}
}
// Add the styles to the block type if the block is interactive and remove
// them if it's not.
$style_asset = 'wp-block-query';
if ( ! wp_style_is( $style_asset ) ) {
$style_handles = $block->block_type->style_handles;
// If the styles are not needed, and they are still in the `style_handles`, remove them.
if ( ! $is_interactive && in_array( $style_asset, $style_handles, true ) ) {
$block->block_type->style_handles = array_diff( $style_handles, array( $style_asset ) );
}
// If the styles are needed, but they were previously removed, add them again.
if ( $is_interactive && ! in_array( $style_asset, $style_handles, true ) ) {
$block->block_type->style_handles = array_merge( $style_handles, array( $style_asset ) );
}
}
return $content;
}
/**
* Registers the `core/query` block on the server.
*
* @since 5.8.0
*/
function register_block_core_query() {
register_block_type_from_metadata(
__DIR__ . '/query',
array(
'render_callback' => 'render_block_core_query',
)
);
}
add_action( 'init', 'register_block_core_query' );
/**
* Traverse the tree of blocks looking for any plugin block (i.e., a block from
* an installed plugin) inside a Query block with the enhanced pagination
* enabled. If at least one is found, the enhanced pagination is effectively
* disabled to prevent any potential incompatibilities.
*
* @since 6.4.0
*
* @param array $parsed_block The block being rendered.
* @return array Returns the parsed block, unmodified.
*/
function block_core_query_disable_enhanced_pagination( $parsed_block ) {
static $enhanced_query_stack = array();
static $dirty_enhanced_queries = array();
static $render_query_callback = null;
$block_name = $parsed_block['blockName'];
$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block_name );
$has_enhanced_pagination = isset( $parsed_block['attrs']['enhancedPagination'] ) && true === $parsed_block['attrs']['enhancedPagination'] && isset( $parsed_block['attrs']['queryId'] );
/*
* Client side navigation can be true in two states:
* - supports.interactivity = true;
* - supports.interactivity.clientNavigation = true;
*/
$supports_client_navigation = ( isset( $block_type->supports['interactivity']['clientNavigation'] ) && true === $block_type->supports['interactivity']['clientNavigation'] )
|| ( isset( $block_type->supports['interactivity'] ) && true === $block_type->supports['interactivity'] );
if ( 'core/query' === $block_name && $has_enhanced_pagination ) {
$enhanced_query_stack[] = $parsed_block['attrs']['queryId'];
if ( ! isset( $render_query_callback ) ) {
/**
* Filter that disables the enhanced pagination feature during block
* rendering when a plugin block has been found inside. It does so
* by adding an attribute called `data-wp-navigation-disabled` which
* is later handled by the front-end logic.
*
* @param string $content The block content.
* @param array $block The full block, including name and attributes.
* @return string Returns the modified output of the query block.
*/
$render_query_callback = static function ( $content, $block ) use ( &$enhanced_query_stack, &$dirty_enhanced_queries, &$render_query_callback ) {
$has_enhanced_pagination = isset( $block['attrs']['enhancedPagination'] ) && true === $block['attrs']['enhancedPagination'] && isset( $block['attrs']['queryId'] );
if ( ! $has_enhanced_pagination ) {
return $content;
}
if ( isset( $dirty_enhanced_queries[ $block['attrs']['queryId'] ] ) ) {
// Disable navigation in the router store config.
wp_interactivity_config( 'core/router', array( 'clientNavigationDisabled' => true ) );
$dirty_enhanced_queries[ $block['attrs']['queryId'] ] = null;
}
array_pop( $enhanced_query_stack );
if ( empty( $enhanced_query_stack ) ) {
remove_filter( 'render_block_core/query', $render_query_callback );
$render_query_callback = null;
}
return $content;
};
add_filter( 'render_block_core/query', $render_query_callback, 10, 2 );
}
} elseif (
! empty( $enhanced_query_stack ) &&
isset( $block_name ) &&
( ! $supports_client_navigation )
) {
foreach ( $enhanced_query_stack as $query_id ) {
$dirty_enhanced_queries[ $query_id ] = true;
}
}
return $parsed_block;
}
add_filter( 'render_block_data', 'block_core_query_disable_enhanced_pagination', 10, 1 );