<?php
/**
- * Taxonomy API
+ * Core Taxonomy API
*
* @package WordPress
* @subpackage Taxonomy
- * @since 2.3.0
*/
//
* Creates the initial taxonomies.
*
* This function fires twice: in wp-settings.php before plugins are loaded (for
- * backwards compatibility reasons), and again on the 'init' action. We must avoid
- * registering rewrite rules before the 'init' action.
+ * backwards compatibility reasons), and again on the {@see 'init'} action. We must
+ * avoid registering rewrite rules before the {@see 'init'} action.
+ *
+ * @since 2.8.0
+ *
+ * @global WP_Rewrite $wp_rewrite The WordPress rewrite class.
*/
function create_initial_taxonomies() {
global $wp_rewrite;
'query_var' => false,
'rewrite' => false,
'public' => false,
- 'show_ui' => false,
+ 'show_ui' => true,
'_builtin' => true,
) );
'show_in_nav_menus' => current_theme_supports( 'post-formats' ),
) );
}
-add_action( 'init', 'create_initial_taxonomies', 0 ); // highest priority
/**
- * Get a list of registered taxonomy objects.
+ * Retrieves a list of registered taxonomy names or objects.
*
* @since 3.0.0
- * @uses $wp_taxonomies
*
- * @param array $args An array of key => value arguments to match against the taxonomy objects.
- * @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
- * @param string $operator The logical operation to perform. 'or' means only one element
- * from the array needs to match; 'and' means all elements must match. The default is 'and'.
- * @return array A list of taxonomy names or objects
+ * @global array $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. Accepts either taxonomy '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 array A list of taxonomy names or objects.
*/
function get_taxonomies( $args = array(), $output = 'names', $operator = 'and' ) {
global $wp_taxonomies;
}
/**
- * Return all of the taxonomy names that are of $object_type.
+ * Return 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.
*
- * It appears that this function can be used to find all of the names inside of
- * $wp_taxonomies global variable.
+ * Example:
*
- * `<?php $taxonomies = get_object_taxonomies('post'); ?>` Should
- * result in `Array( 'category', 'post_tag' )`
+ * $taxonomies = get_object_taxonomies( 'post' );
+ *
+ * This results in:
+ *
+ * Array( 'category', 'post_tag' )
*
* @since 2.3.0
*
- * @uses $wp_taxonomies
+ * @global array $wp_taxonomies The registered taxonomies.
*
- * @param array|string|object $object Name of the type of taxonomy object, or an object (row from posts)
- * @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
+ * @param array|string|WP_Post $object 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
+ * taxonomy 'names' or 'objects'. Default 'names'.
* @return array The names of all taxonomy of $object_type.
*/
-function get_object_taxonomies($object, $output = 'names') {
+function get_object_taxonomies( $object, $output = 'names' ) {
global $wp_taxonomies;
if ( is_object($object) ) {
*
* @since 2.3.0
*
- * @uses $wp_taxonomies
+ * @global array $wp_taxonomies The registered taxonomies.
*
- * @param string $taxonomy Name of taxonomy object to return
- * @return object|bool The Taxonomy Object or false if $taxonomy doesn't exist
+ * @param string $taxonomy Name of taxonomy object to return.
+ * @return object|false The Taxonomy Object or false if $taxonomy doesn't exist.
*/
function get_taxonomy( $taxonomy ) {
global $wp_taxonomies;
*
* @since 3.0.0
*
- * @uses $wp_taxonomies
+ * @global array $wp_taxonomies The registered taxonomies.
*
- * @param string $taxonomy Name of taxonomy object
+ * @param string $taxonomy Name of taxonomy object.
* @return bool Whether the taxonomy exists.
*/
function taxonomy_exists( $taxonomy ) {
*
* @since 2.3.0
*
- * @param string $taxonomy Name of taxonomy object
- * @return bool Whether the taxonomy is hierarchical
+ * @param string $taxonomy Name of taxonomy object.
+ * @return bool Whether the taxonomy is hierarchical.
*/
function is_taxonomy_hierarchical($taxonomy) {
if ( ! taxonomy_exists($taxonomy) )
}
/**
- * Create or modify a taxonomy object. Do not use before init.
+ * 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. The function will accept an array (third optional
* parameter), along with strings for the taxonomy name and another string for
* the object type.
*
- * Nothing is returned, so expect error maybe or use taxonomy_exists() to check
- * whether taxonomy exists.
- *
- * Optional $args contents:
- *
- * - label - Name of the taxonomy shown in the menu. Usually plural. If not set, labels['name'] will be used.
- * - labels - An array of labels for this taxonomy.
- * * By default tag labels are used for non-hierarchical types and category labels for hierarchical ones.
- * * You can see accepted values in {@link get_taxonomy_labels()}.
- * - description - A short descriptive summary of what the taxonomy is for. Defaults to blank.
- * - public - If the taxonomy should be publicly queryable; //@TODO not implemented.
- * * Defaults to true.
- * - hierarchical - Whether the taxonomy is hierarchical (e.g. category). Defaults to false.
- * - show_ui - Whether to generate a default UI for managing this taxonomy in the admin.
- * * If not set, the default is inherited from public.
- * - 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, the default is inherited from show_ui.
- * - show_in_nav_menus - Makes this taxonomy available for selection in navigation menus.
- * * If not set, the default is inherited from public.
- * - show_tagcloud - Whether to list the taxonomy in the Tag Cloud Widget.
- * * If not set, the default is inherited from show_ui.
- * - show_admin_column - Whether to display a column for the taxonomy on its post type listing screens.
- * * Defaults to false.
- * - meta_box_cb - Provide a callback function for the meta box display.
- * * If not set, defaults to post_categories_meta_box for hierarchical taxonomies
- * and post_tags_meta_box for non-hierarchical.
- * * If false, no meta box is shown.
- * - capabilities - Array of capabilities for this taxonomy.
- * * You can see accepted values in this function.
- * - rewrite - Triggers the handling of rewrites for this taxonomy. Defaults to 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
- * * 'slug' => string Customize the permastruct slug. Defaults to $taxonomy key
- * * 'with_front' => bool Should the permastruct be prepended with WP_Rewrite::$front. Defaults to true.
- * * 'hierarchical' => bool Either hierarchical rewrite tag or not. Defaults to false.
- * * 'ep_mask' => const Assign an endpoint mask.
- * * If not specified, defaults to EP_NONE.
- * - query_var - Sets the query_var key for this taxonomy. Defaults to $taxonomy key
- * * If false, a taxonomy cannot be loaded at ?{query_var}={term_slug}
- * * If specified as a string, the query ?{query_var_string}={term_slug} will be valid.
- * - update_count_callback - Works much like a hook, in that it will be called when the count is updated.
- * * Defaults to _update_post_term_count() for taxonomies attached to post types, which then confirms
- * that the objects are published before counting them.
- * * Defaults to _update_generic_term_count() for taxonomies attached to other object types, such as links.
- * - _builtin - true if this taxonomy is a native or "built-in" taxonomy. THIS IS FOR INTERNAL USE ONLY!
- *
* @since 2.3.0
- * @uses $wp_taxonomies Inserts new taxonomy object into the list
- * @uses $wp Adds query vars
+ * @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.
+ *
+ * @global array $wp_taxonomies Registered taxonomies.
+ * @global WP $wp WP instance.
*
- * @param string $taxonomy Taxonomy key, must not exceed 32 characters.
+ * @param string $taxonomy Taxonomy key, must not exceed 32 characters.
* @param array|string $object_type Name of the object type for the taxonomy object.
- * @param array|string $args See optional args description above.
- * @return null|WP_Error WP_Error if errors, otherwise null.
+ * @param array|string $args {
+ * Optional. Array or query string of arguments for registering a taxonomy.
+ *
+ * @type string $label Name of the taxonomy shown in the menu. Usually plural. If not set,
+ * `$labels['name']` will be used.
+ * @type array $labels An array of labels for this taxonomy. By default, Tag labels are used for
+ * non-hierarchical taxonmies, 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 $show_tagcloud Whether to list the taxonomy in the Tag Cloud Widget controls. If not set,
+ * the default is inherited from `$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 array $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 $query_var Sets the query var key for this taxonomy. Default `$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 bool $_builtin This taxonomy is a "built-in" taxonomy. INTERNAL USE ONLY!
+ * Default false.
+ * }
+ * @return WP_Error|void WP_Error, if errors.
*/
function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
global $wp_taxonomies, $wp;
if ( ! is_array( $wp_taxonomies ) )
$wp_taxonomies = array();
+ $args = wp_parse_args( $args );
+
+ /**
+ * Filter the arguments for registering a taxonomy.
+ *
+ * @since 4.4.0
+ *
+ * @param array $args Array of arguments for registering a taxonomy.
+ * @param string $taxonomy Taxonomy key.
+ * @param array $object_type Array of names of object types for the taxonomy.
+ */
+ $args = apply_filters( 'register_taxonomy_args', $args, $taxonomy, (array) $object_type );
+
$defaults = array(
'labels' => array(),
'description' => '',
'public' => true,
+ 'publicly_queryable' => null,
'hierarchical' => false,
'show_ui' => null,
'show_in_menu' => null,
'show_in_nav_menus' => null,
'show_tagcloud' => null,
+ 'show_in_quick_edit' => null,
'show_admin_column' => false,
'meta_box_cb' => null,
'capabilities' => array(),
'update_count_callback' => '',
'_builtin' => false,
);
- $args = wp_parse_args( $args, $defaults );
+ $args = array_merge( $defaults, $args );
- if ( strlen( $taxonomy ) > 32 ) {
- _doing_it_wrong( __FUNCTION__, __( 'Taxonomies cannot exceed 32 characters in length' ), '4.0' );
- return new WP_Error( 'taxonomy_too_long', __( 'Taxonomies cannot exceed 32 characters in length' ) );
+ if ( empty( $taxonomy ) || strlen( $taxonomy ) > 32 ) {
+ _doing_it_wrong( __FUNCTION__, __( 'Taxonomy names must be between 1 and 32 characters in length.' ), '4.2' );
+ return new WP_Error( 'taxonomy_length_invalid', __( 'Taxonomy names must be between 1 and 32 characters in length.' ) );
}
- if ( false !== $args['query_var'] && ! empty( $wp ) ) {
+ // If not set, default to the setting for public.
+ if ( null === $args['publicly_queryable'] ) {
+ $args['publicly_queryable'] = $args['public'];
+ }
+
+ // Non-publicly queryable taxonomies should not register query vars, except in the admin.
+ if ( false !== $args['query_var'] && ( is_admin() || false !== $args['publicly_queryable'] ) && ! empty( $wp ) ) {
if ( true === $args['query_var'] )
$args['query_var'] = $taxonomy;
else
$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
$wp->add_query_var( $args['query_var'] );
+ } else {
+ // Force query_var to false for non-public taxonomies.
+ $args['query_var'] = false;
}
if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
if ( null === $args['show_tagcloud'] )
$args['show_tagcloud'] = $args['show_ui'];
+ // If not set, default to the setting for show_ui.
+ if ( null === $args['show_in_quick_edit'] ) {
+ $args['show_in_quick_edit'] = $args['show_ui'];
+ }
+
$default_caps = array(
'manage_terms' => 'manage_categories',
'edit_terms' => 'manage_categories',
do_action( 'registered_taxonomy', $taxonomy, $object_type, $args );
}
+/**
+ * Unregisters a taxonomy.
+ *
+ * Can not be used to unregister built-in taxonomies.
+ *
+ * @since 4.5.0
+ *
+ * @global WP $wp Current WordPress environment instance.
+ * @global array $wp_taxonomies List of taxonomies.
+ *
+ * @param string $taxonomy Taxonomy name.
+ * @return bool|WP_Error True on success, WP_Error on failure or if the taxonomy doesn't exist.
+ */
+function unregister_taxonomy( $taxonomy ) {
+ if ( ! taxonomy_exists( $taxonomy ) ) {
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
+ }
+
+ $taxonomy_args = get_taxonomy( $taxonomy );
+
+ // Do not allow unregistering internal taxonomies.
+ if ( $taxonomy_args->_builtin ) {
+ return new WP_Error( 'invalid_taxonomy', __( 'Unregistering a built-in taxonomy is not allowed' ) );
+ }
+
+ global $wp, $wp_taxonomies;
+
+ // Remove query var.
+ if ( false !== $taxonomy_args->query_var ) {
+ $wp->remove_query_var( $taxonomy_args->query_var );
+ }
+
+ // Remove rewrite tags and permastructs.
+ if ( false !== $taxonomy_args->rewrite ) {
+ remove_rewrite_tag( "%$taxonomy%" );
+ remove_permastruct( $taxonomy );
+ }
+
+ // Unregister callback handling for metabox.
+ remove_filter( 'wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term' );
+
+ // 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
*
* - separate_items_with_commas - This string isn't used on hierarchical taxonomies. Default is "Separate tags with commas", used in the meta box.
* - add_or_remove_items - This string isn't used on hierarchical taxonomies. Default is "Add or remove tags", used in the meta box when JavaScript is disabled.
* - choose_from_most_used - This string isn't used on hierarchical taxonomies. Default is "Choose from the most used tags", used in the meta box.
- * - not_found - This string isn't used on hierarchical taxonomies. Default is "No tags found", used in the meta box.
+ * - not_found - Default is "No tags found"/"No categories found", used in the meta box and taxonomy list table.
+ * - no_terms - Default is "No tags"/"No categories", used in the posts and media list tables.
+ * - items_list_navigation - String for the table pagination hidden heading.
+ * - items_list - String for the table hidden heading.
*
* Above, the first default value is for non-hierarchical taxonomies (like tags) and the second one is for hierarchical taxonomies (like categories).
*
+ * @todo Better documentation for the labels array.
+ *
* @since 3.0.0
- * @param object $tax Taxonomy object
- * @return object object with all the labels as member variables
+ * @since 4.3.0 Added the `no_terms` label.
+ * @since 4.4.0 Added the `items_list_navigation` and `items_list` labels.
+ *
+ * @param object $tax Taxonomy object.
+ * @return object object with all the labels as member variables.
*/
-
function get_taxonomy_labels( $tax ) {
$tax->labels = (array) $tax->labels;
'separate_items_with_commas' => array( __( 'Separate tags with commas' ), null ),
'add_or_remove_items' => array( __( 'Add or remove tags' ), null ),
'choose_from_most_used' => array( __( 'Choose from the most used tags' ), null ),
- 'not_found' => array( __( 'No tags found.' ), null ),
+ 'not_found' => array( __( 'No tags found.' ), __( 'No categories found.' ) ),
+ 'no_terms' => array( __( 'No tags' ), __( 'No categories' ) ),
+ 'items_list_navigation' => array( __( 'Tags list navigation' ), __( 'Categories list navigation' ) ),
+ 'items_list' => array( __( 'Tags list' ), __( 'Categories list' ) ),
);
$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
- return _get_custom_object_labels( $tax, $nohier_vs_hier_defaults );
+ $labels = _get_custom_object_labels( $tax, $nohier_vs_hier_defaults );
+
+ $taxonomy = $tax->name;
+
+ $default_labels = clone $labels;
+
+ /**
+ * Filter the labels of a specific taxonomy.
+ *
+ * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
+ *
+ * @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;
}
/**
* Add an already registered taxonomy to an object type.
*
* @since 3.0.0
- * @uses $wp_taxonomies Modifies taxonomy object
*
- * @param string $taxonomy Name of taxonomy object
- * @param string $object_type Name of the object type
- * @return bool True if successful, false if not
+ * @global array $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 ( ! in_array( $object_type, $wp_taxonomies[$taxonomy]->object_type ) )
$wp_taxonomies[$taxonomy]->object_type[] = $object_type;
+ // Filter out empties.
+ $wp_taxonomies[ $taxonomy ]->object_type = array_filter( $wp_taxonomies[ $taxonomy ]->object_type );
+
return true;
}
*
* @since 3.7.0
*
+ * @global array $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.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param int|array $term_ids Term id or array of term ids of terms that will be used
- * @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names
- * @param array|string $args Change the order of the object_ids, either ASC or DESC
- * @return WP_Error|array If the taxonomy does not exist, then WP_Error will be returned. On success
+ * @param int|array $term_ids Term id or array of term ids of terms that will be used.
+ * @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names.
+ * @param array|string $args Change the order of the object_ids, either ASC or DESC.
+ * @return WP_Error|array If the taxonomy does not exist, then WP_Error will be returned. On success.
* the array can be empty meaning that there are no $object_ids found or it will return the $object_ids found.
*/
function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
$term_ids = array_map('intval', $term_ids );
- $taxonomies = "'" . implode( "', '", $taxonomies ) . "'";
+ $taxonomies = "'" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "'";
$term_ids = "'" . implode( "', '", $term_ids ) . "'";
$object_ids = $wpdb->get_col("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");
*
* @see WP_Tax_Query
*
- * @param array $tax_query A compact tax query
+ * @param array $tax_query A compact tax query
* @param string $primary_table
* @param string $primary_id_column
* @return array
return $tax_query_obj->get_sql( $primary_table, $primary_id_column );
}
-/**
- * Class for generating SQL clauses that filter a primary query according to object taxonomy terms.
- *
- * `WP_Tax_Query` is a helper that allows primary query classes, such as {@see WP_Query}, to filter
- * their results by object metadata, by generating `JOIN` and `WHERE` subclauses to be attached
- * to the primary SQL query string.
- *
- * @since 3.1.0
- */
-class WP_Tax_Query {
-
- /**
- * Array of taxonomy queries.
- *
- * See {@see WP_Tax_Query::__construct()} for information on tax query arguments.
- *
- * @since 3.1.0
- * @access public
- * @var array
- */
- public $queries = array();
-
- /**
- * The relation between the queries. Can be one of 'AND' or 'OR'.
- *
- * @since 3.1.0
- * @access public
- * @var string
- */
- public $relation;
-
- /**
- * Standard response when the query should not return any rows.
- *
- * @since 3.2.0
- * @access private
- * @var string
- */
- private static $no_results = array( 'join' => array( '' ), 'where' => array( '0 = 1' ) );
-
- /**
- * A flat list of table aliases used in the JOIN clauses.
- *
- * @since 4.1.0
- * @access protected
- * @var array
- */
- protected $table_aliases = array();
-
- /**
- * Terms and taxonomies fetched by this query.
- *
- * We store this data in a flat array because they are referenced in a
- * number of places by {@see WP_Query}.
- *
- * @since 4.1.0
- * @access public
- * @var array
- */
- public $queried_terms = array();
-
- /**
- * Database table that where the metadata's objects are stored (eg $wpdb->users).
- *
- * @since 4.1.0
- * @access public
- * @var string
- */
- public $primary_table;
-
- /**
- * Column in 'primary_table' that represents the ID of the object.
- *
- * @since 4.1.0
- * @access public
- * @var string
- */
- public $primary_id_column;
-
- /**
- * Constructor.
- *
- * @since 3.1.0
- * @since 4.1.0 Added support for `$operator` 'NOT EXISTS' and 'EXISTS' values.
- * @access public
- *
- * @param array $tax_query {
- * Array of taxonomy query clauses.
- *
- * @type string $relation Optional. The MySQL keyword used to join
- * the clauses of the query. Accepts 'AND', or 'OR'. Default 'AND'.
- * @type array {
- * Optional. An array of first-order clause parameters, or another fully-formed tax query.
- *
- * @type string $taxonomy Taxonomy being queried. Optional when field=term_taxonomy_id.
- * @type string|int|array $terms Term or terms to filter by.
- * @type string $field Field to match $terms against. Accepts 'term_id', 'slug',
- * 'name', or 'term_taxonomy_id'. Default: 'term_id'.
- * @type string $operator MySQL operator to be used with $terms in the WHERE clause.
- * Accepts 'AND', 'IN', 'NOT IN', 'EXISTS', 'NOT EXISTS'.
- * Default: 'IN'.
- * @type bool $include_children Optional. Whether to include child terms.
- * Requires a $taxonomy. Default: true.
- * }
- * }
- */
- public function __construct( $tax_query ) {
- if ( isset( $tax_query['relation'] ) ) {
- $this->relation = $this->sanitize_relation( $tax_query['relation'] );
- } else {
- $this->relation = 'AND';
- }
-
- $this->queries = $this->sanitize_query( $tax_query );
- }
-
- /**
- * Ensure the 'tax_query' argument passed to the class constructor is well-formed.
- *
- * Ensures that each query-level clause has a 'relation' key, and that
- * each first-order clause contains all the necessary keys from `$defaults`.
- *
- * @since 4.1.0
- * @access public
- *
- * @param array $queries Array of queries clauses.
- * @return array Sanitized array of query clauses.
- */
- public function sanitize_query( $queries ) {
- $cleaned_query = array();
-
- $defaults = array(
- 'taxonomy' => '',
- 'terms' => array(),
- 'field' => 'term_id',
- 'operator' => 'IN',
- 'include_children' => true,
- );
-
- foreach ( $queries as $key => $query ) {
- if ( 'relation' === $key ) {
- $cleaned_query['relation'] = $this->sanitize_relation( $query );
-
- // First-order clause.
- } else if ( self::is_first_order_clause( $query ) ) {
-
- $cleaned_clause = array_merge( $defaults, $query );
- $cleaned_clause['terms'] = (array) $cleaned_clause['terms'];
- $cleaned_query[] = $cleaned_clause;
-
- /*
- * Keep a copy of the clause in the flate
- * $queried_terms array, for use in WP_Query.
- */
- if ( ! empty( $cleaned_clause['taxonomy'] ) && 'NOT IN' !== $cleaned_clause['operator'] ) {
- $taxonomy = $cleaned_clause['taxonomy'];
- if ( ! isset( $this->queried_terms[ $taxonomy ] ) ) {
- $this->queried_terms[ $taxonomy ] = array();
- }
-
- /*
- * Backward compatibility: Only store the first
- * 'terms' and 'field' found for a given taxonomy.
- */
- if ( ! empty( $cleaned_clause['terms'] ) && ! isset( $this->queried_terms[ $taxonomy ]['terms'] ) ) {
- $this->queried_terms[ $taxonomy ]['terms'] = $cleaned_clause['terms'];
- }
-
- if ( ! empty( $cleaned_clause['field'] ) && ! isset( $this->queried_terms[ $taxonomy ]['field'] ) ) {
- $this->queried_terms[ $taxonomy ]['field'] = $cleaned_clause['field'];
- }
- }
-
- // Otherwise, it's a nested query, so we recurse.
- } else if ( is_array( $query ) ) {
- $cleaned_subquery = $this->sanitize_query( $query );
-
- if ( ! empty( $cleaned_subquery ) ) {
- // All queries with children must have a relation.
- if ( ! isset( $cleaned_subquery['relation'] ) ) {
- $cleaned_subquery['relation'] = 'AND';
- }
-
- $cleaned_query[] = $cleaned_subquery;
- }
- }
- }
-
- return $cleaned_query;
- }
-
- /**
- * Sanitize a 'relation' operator.
- *
- * @since 4.1.0
- * @access public
- *
- * @param string $relation Raw relation key from the query argument.
- * @return string Sanitized relation ('AND' or 'OR').
- */
- public function sanitize_relation( $relation ) {
- if ( 'OR' === strtoupper( $relation ) ) {
- return 'OR';
- } else {
- return 'AND';
- }
- }
-
- /**
- * Determine whether a clause is first-order.
- *
- * A "first-order" clause is one that contains any of the first-order
- * clause keys ('terms', 'taxonomy', 'include_children', 'field',
- * 'operator'). An empty clause also counts as a first-order clause,
- * for backward compatibility. Any clause that doesn't meet this is
- * determined, by process of elimination, to be a higher-order query.
- *
- * @since 4.1.0
- * @access protected
- *
- * @param array $query Tax query arguments.
- * @return bool Whether the query clause is a first-order clause.
- */
- protected static function is_first_order_clause( $query ) {
- return is_array( $query ) && ( empty( $query ) || array_key_exists( 'terms', $query ) || array_key_exists( 'taxonomy', $query ) || array_key_exists( 'include_children', $query ) || array_key_exists( 'field', $query ) || array_key_exists( 'operator', $query ) );
- }
-
- /**
- * Generates SQL clauses to be appended to a main query.
- *
- * @since 3.1.0
- * @access public
- *
- * @param string $primary_table Database table where the object being filtered is stored (eg wp_users).
- * @param string $primary_id_column ID column for the filtered object in $primary_table.
- * @return array {
- * Array containing JOIN and WHERE SQL clauses to append to the main query.
- *
- * @type string $join SQL fragment to append to the main JOIN clause.
- * @type string $where SQL fragment to append to the main WHERE clause.
- * }
- */
- public function get_sql( $primary_table, $primary_id_column ) {
- $this->primary_table = $primary_table;
- $this->primary_id_column = $primary_id_column;
-
- return $this->get_sql_clauses();
- }
-
- /**
- * Generate SQL clauses to be appended to a main query.
- *
- * Called by the public {@see WP_Tax_Query::get_sql()}, this method
- * is abstracted out to maintain parity with the other Query classes.
- *
- * @since 4.1.0
- * @access protected
- *
- * @return array {
- * Array containing JOIN and WHERE SQL clauses to append to the main query.
- *
- * @type string $join SQL fragment to append to the main JOIN clause.
- * @type string $where SQL fragment to append to the main WHERE clause.
- * }
- */
- protected function get_sql_clauses() {
- /*
- * $queries are passed by reference to get_sql_for_query() for recursion.
- * To keep $this->queries unaltered, pass a copy.
- */
- $queries = $this->queries;
- $sql = $this->get_sql_for_query( $queries );
-
- if ( ! empty( $sql['where'] ) ) {
- $sql['where'] = ' AND ' . $sql['where'];
- }
-
- return $sql;
- }
-
- /**
- * Generate SQL clauses for a single query array.
- *
- * If nested subqueries are found, this method recurses the tree to
- * produce the properly nested SQL.
- *
- * @since 4.1.0
- * @access protected
- *
- * @param array $query Query to parse, passed by reference.
- * @param int $depth Optional. Number of tree levels deep we currently are.
- * Used to calculate indentation. Default 0.
- * @return array {
- * Array containing JOIN and WHERE SQL clauses to append to a single query array.
- *
- * @type string $join SQL fragment to append to the main JOIN clause.
- * @type string $where SQL fragment to append to the main WHERE clause.
- * }
- */
- protected function get_sql_for_query( &$query, $depth = 0 ) {
- $sql_chunks = array(
- 'join' => array(),
- 'where' => array(),
- );
-
- $sql = array(
- 'join' => '',
- 'where' => '',
- );
-
- $indent = '';
- for ( $i = 0; $i < $depth; $i++ ) {
- $indent .= " ";
- }
-
- foreach ( $query as $key => &$clause ) {
- if ( 'relation' === $key ) {
- $relation = $query['relation'];
- } else if ( is_array( $clause ) ) {
-
- // This is a first-order clause.
- if ( $this->is_first_order_clause( $clause ) ) {
- $clause_sql = $this->get_sql_for_clause( $clause, $query );
-
- $where_count = count( $clause_sql['where'] );
- if ( ! $where_count ) {
- $sql_chunks['where'][] = '';
- } else if ( 1 === $where_count ) {
- $sql_chunks['where'][] = $clause_sql['where'][0];
- } else {
- $sql_chunks['where'][] = '( ' . implode( ' AND ', $clause_sql['where'] ) . ' )';
- }
-
- $sql_chunks['join'] = array_merge( $sql_chunks['join'], $clause_sql['join'] );
- // This is a subquery, so we recurse.
- } else {
- $clause_sql = $this->get_sql_for_query( $clause, $depth + 1 );
-
- $sql_chunks['where'][] = $clause_sql['where'];
- $sql_chunks['join'][] = $clause_sql['join'];
- }
- }
- }
-
- // Filter to remove empties.
- $sql_chunks['join'] = array_filter( $sql_chunks['join'] );
- $sql_chunks['where'] = array_filter( $sql_chunks['where'] );
-
- if ( empty( $relation ) ) {
- $relation = 'AND';
- }
-
- // Filter duplicate JOIN clauses and combine into a single string.
- if ( ! empty( $sql_chunks['join'] ) ) {
- $sql['join'] = implode( ' ', array_unique( $sql_chunks['join'] ) );
- }
-
- // Generate a single WHERE clause with proper brackets and indentation.
- if ( ! empty( $sql_chunks['where'] ) ) {
- $sql['where'] = '( ' . "\n " . $indent . implode( ' ' . "\n " . $indent . $relation . ' ' . "\n " . $indent, $sql_chunks['where'] ) . "\n" . $indent . ')';
- }
-
- return $sql;
- }
-
- /**
- * Generate SQL JOIN and WHERE clauses for a "first-order" query clause.
- *
- * @since 4.1.0
- * @access public
- *
- * @param array $clause Query clause, passed by reference
- * @param array $parent_query Parent query array.
- * @return array {
- * Array containing JOIN and WHERE SQL clauses to append to a first-order query.
- *
- * @type string $join SQL fragment to append to the main JOIN clause.
- * @type string $where SQL fragment to append to the main WHERE clause.
- * }
- */
- public function get_sql_for_clause( &$clause, $parent_query ) {
- global $wpdb;
-
- $sql = array(
- 'where' => array(),
- 'join' => array(),
- );
-
- $join = '';
-
- $this->clean_query( $clause );
-
- if ( is_wp_error( $clause ) ) {
- return self::$no_results;
- }
-
- $terms = $clause['terms'];
- $operator = strtoupper( $clause['operator'] );
-
- if ( 'IN' == $operator ) {
-
- if ( empty( $terms ) ) {
- return self::$no_results;
- }
-
- $terms = implode( ',', $terms );
-
- /*
- * Before creating another table join, see if this clause has a
- * sibling with an existing join that can be shared.
- */
- $alias = $this->find_compatible_table_alias( $clause, $parent_query );
- if ( false === $alias ) {
- $i = count( $this->table_aliases );
- $alias = $i ? 'tt' . $i : $wpdb->term_relationships;
-
- // Store the alias as part of a flat array to build future iterators.
- $this->table_aliases[] = $alias;
-
- // Store the alias with this clause, so later siblings can use it.
- $clause['alias'] = $alias;
-
- $join .= " INNER JOIN $wpdb->term_relationships";
- $join .= $i ? " AS $alias" : '';
- $join .= " ON ($this->primary_table.$this->primary_id_column = $alias.object_id)";
- }
-
-
- $where = "$alias.term_taxonomy_id $operator ($terms)";
-
- } elseif ( 'NOT IN' == $operator ) {
-
- if ( empty( $terms ) ) {
- return $sql;
- }
-
- $terms = implode( ',', $terms );
-
- $where = "$this->primary_table.$this->primary_id_column NOT IN (
- SELECT object_id
- FROM $wpdb->term_relationships
- WHERE term_taxonomy_id IN ($terms)
- )";
-
- } elseif ( 'AND' == $operator ) {
-
- if ( empty( $terms ) ) {
- return $sql;
- }
-
- $num_terms = count( $terms );
-
- $terms = implode( ',', $terms );
-
- $where = "(
- SELECT COUNT(1)
- FROM $wpdb->term_relationships
- WHERE term_taxonomy_id IN ($terms)
- AND object_id = $this->primary_table.$this->primary_id_column
- ) = $num_terms";
-
- } elseif ( 'NOT EXISTS' === $operator || 'EXISTS' === $operator ) {
-
- $where = $wpdb->prepare( "$operator (
- SELECT 1
- FROM $wpdb->term_relationships
- INNER JOIN $wpdb->term_taxonomy
- ON $wpdb->term_taxonomy.term_taxonomy_id = $wpdb->term_relationships.term_taxonomy_id
- WHERE $wpdb->term_taxonomy.taxonomy = %s
- AND $wpdb->term_relationships.object_id = $this->primary_table.$this->primary_id_column
- )", $clause['taxonomy'] );
-
- }
-
- $sql['join'][] = $join;
- $sql['where'][] = $where;
- return $sql;
- }
-
- /**
- * Identify an existing table alias that is compatible with the current query clause.
- *
- * We avoid unnecessary table joins by allowing each clause to look for
- * an existing table alias that is compatible with the query that it
- * needs to perform.
- *
- * An existing alias is compatible if (a) it is a sibling of `$clause`
- * (ie, it's under the scope of the same relation), and (b) the combination
- * of operator and relation between the clauses allows for a shared table
- * join. In the case of {@see WP_Tax_Query}, this only applies to 'IN'
- * clauses that are connected by the relation 'OR'.
- *
- * @since 4.1.0
- * @access protected
- *
- * @param array $clause Query clause.
- * @param array $parent_query Parent query of $clause.
- * @return string|bool Table alias if found, otherwise false.
- */
- protected function find_compatible_table_alias( $clause, $parent_query ) {
- $alias = false;
-
- // Sanity check. Only IN queries use the JOIN syntax .
- if ( ! isset( $clause['operator'] ) || 'IN' !== $clause['operator'] ) {
- return $alias;
- }
-
- // Since we're only checking IN queries, we're only concerned with OR relations.
- if ( ! isset( $parent_query['relation'] ) || 'OR' !== $parent_query['relation'] ) {
- return $alias;
- }
-
- $compatible_operators = array( 'IN' );
-
- foreach ( $parent_query as $sibling ) {
- if ( ! is_array( $sibling ) || ! $this->is_first_order_clause( $sibling ) ) {
- continue;
- }
-
- if ( empty( $sibling['alias'] ) || empty( $sibling['operator'] ) ) {
- continue;
- }
-
- // The sibling must both have compatible operator to share its alias.
- if ( in_array( strtoupper( $sibling['operator'] ), $compatible_operators ) ) {
- $alias = $sibling['alias'];
- break;
- }
- }
-
- return $alias;
- }
-
- /**
- * Validates a single query.
- *
- * @since 3.2.0
- * @access private
- *
- * @param array &$query The single query.
- */
- private function clean_query( &$query ) {
- if ( empty( $query['taxonomy'] ) ) {
- if ( 'term_taxonomy_id' !== $query['field'] ) {
- $query = new WP_Error( 'Invalid taxonomy' );
- return;
- }
-
- // so long as there are shared terms, include_children requires that a taxonomy is set
- $query['include_children'] = false;
- } elseif ( ! taxonomy_exists( $query['taxonomy'] ) ) {
- $query = new WP_Error( 'Invalid taxonomy' );
- return;
- }
-
- $query['terms'] = array_unique( (array) $query['terms'] );
-
- if ( is_taxonomy_hierarchical( $query['taxonomy'] ) && $query['include_children'] ) {
- $this->transform_query( $query, 'term_id' );
-
- if ( is_wp_error( $query ) )
- return;
-
- $children = array();
- foreach ( $query['terms'] as $term ) {
- $children = array_merge( $children, get_term_children( $term, $query['taxonomy'] ) );
- $children[] = $term;
- }
- $query['terms'] = $children;
- }
-
- $this->transform_query( $query, 'term_taxonomy_id' );
- }
-
- /**
- * Transforms a single query, from one field to another.
- *
- * @since 3.2.0
- *
- * @param array &$query The single query.
- * @param string $resulting_field The resulting field. Accepts 'slug', 'name', 'term_taxonomy_id',
- * or 'term_id'. Default: 'term_id'.
- */
- public function transform_query( &$query, $resulting_field ) {
- global $wpdb;
-
- if ( empty( $query['terms'] ) )
- return;
-
- if ( $query['field'] == $resulting_field )
- return;
-
- $resulting_field = sanitize_key( $resulting_field );
-
- switch ( $query['field'] ) {
- case 'slug':
- case 'name':
- $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $query['terms'] ) ) . "'";
- $terms = $wpdb->get_col( "
- SELECT $wpdb->term_taxonomy.$resulting_field
- FROM $wpdb->term_taxonomy
- INNER JOIN $wpdb->terms USING (term_id)
- WHERE taxonomy = '{$query['taxonomy']}'
- AND $wpdb->terms.{$query['field']} IN ($terms)
- " );
- break;
- case 'term_taxonomy_id':
- $terms = implode( ',', array_map( 'intval', $query['terms'] ) );
- $terms = $wpdb->get_col( "
- SELECT $resulting_field
- FROM $wpdb->term_taxonomy
- WHERE term_taxonomy_id IN ($terms)
- " );
- break;
- default:
- $terms = implode( ',', array_map( 'intval', $query['terms'] ) );
- $terms = $wpdb->get_col( "
- SELECT $resulting_field
- FROM $wpdb->term_taxonomy
- WHERE taxonomy = '{$query['taxonomy']}'
- AND term_id IN ($terms)
- " );
- }
-
- if ( 'AND' == $query['operator'] && count( $terms ) < count( $query['terms'] ) ) {
- $query = new WP_Error( 'Inexistent terms' );
- return;
- }
-
- $query['terms'] = $terms;
- $query['field'] = $resulting_field;
- }
-}
-
/**
* Get all Term data from database by Term ID.
*
* term object, and the taxonomy name as parameters. Both hooks are expected to
* return a Term object.
*
- * 'get_term' hook - Takes two parameters the term Object and the taxonomy name.
+ * {@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
* $term.
*
- * 'get_$taxonomy' hook - Takes two parameters the term Object and the taxonomy
+ * {@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.
*
* @global wpdb $wpdb WordPress database abstraction object.
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
*
- * @param int|object $term If integer, will get from database. If object will apply filters and return $term.
- * @param string $taxonomy Taxonomy name that $term is part of.
- * @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
- * @param string $filter Optional, default is raw or no WordPress defined filter will applied.
- * @return mixed|null|WP_Error Term Row from database. Will return null if $term is empty. If taxonomy does not
- * exist then WP_Error will be returned.
+ * @param int|WP_Term|object $term If integer, term data will be fetched from the database, or from the cache if
+ * available. If stdClass object (as in the results of a database query), will apply
+ * filters and return a `WP_Term` object corresponding to the `$term` data. If `WP_Term`,
+ * will return `$term`.
+ * @param string $taxonomy Optional. Taxonomy name that $term is part of.
+ * @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
+ * @param string $filter Optional, default is raw or no WordPress defined filter will applied.
+ * @return array|WP_Term|WP_Error|null Object of the type specified by `$output` on success. When `$output` is 'OBJECT',
+ * a WP_Term instance is returned. If taxonomy does not exist, a WP_Error is
+ * returned. Returns null for miscellaneous failure.
*/
-function get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
- global $wpdb;
-
- if ( empty($term) ) {
- $error = new WP_Error('invalid_term', __('Empty Term'));
- return $error;
+function get_term( $term, $taxonomy = '', $output = OBJECT, $filter = 'raw' ) {
+ if ( empty( $term ) ) {
+ return new WP_Error( 'invalid_term', __( 'Empty Term' ) );
}
- if ( ! taxonomy_exists($taxonomy) ) {
- $error = new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
- return $error;
+ if ( $taxonomy && ! taxonomy_exists( $taxonomy ) ) {
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
}
- if ( is_object($term) && empty($term->filter) ) {
- wp_cache_add( $term->term_id, $term, $taxonomy );
+ if ( $term instanceof WP_Term ) {
$_term = $term;
- } else {
- if ( is_object($term) )
- $term = $term->term_id;
- if ( !$term = (int) $term )
- return null;
- if ( ! $_term = wp_cache_get( $term, $taxonomy ) ) {
- $_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = %s AND t.term_id = %d LIMIT 1", $taxonomy, $term) );
- if ( ! $_term )
- return null;
- wp_cache_add( $term, $_term, $taxonomy );
+ } 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 ( ! $_term ) {
+ return null;
}
/**
* Filter a term.
*
* @since 2.3.0
+ * @since 4.4.0 `$_term` can now also be a WP_Term object.
*
- * @param int|object $_term Term object or ID.
- * @param string $taxonomy The taxonomy slug.
+ * @param int|WP_Term $_term Term object or ID.
+ * @param string $taxonomy The taxonomy slug.
*/
$_term = apply_filters( 'get_term', $_term, $taxonomy );
* to the taxonomy slug.
*
* @since 2.3.0
+ * @since 4.4.0 `$_term` can now also be a WP_Term object.
*
- * @param int|object $_term Term object or ID.
- * @param string $taxonomy The taxonomy slug.
+ * @param int|WP_Term $_term Term object or ID.
+ * @param string $taxonomy The taxonomy slug.
*/
$_term = apply_filters( "get_$taxonomy", $_term, $taxonomy );
- $_term = sanitize_term($_term, $taxonomy, $filter);
- if ( $output == OBJECT ) {
+ // Bail if a filter callback has changed the type of the `$_term` object.
+ if ( ! ( $_term instanceof WP_Term ) ) {
return $_term;
- } elseif ( $output == ARRAY_A ) {
- $__term = get_object_vars($_term);
- return $__term;
+ }
+
+ // Sanitize term, according to the specified filter.
+ $_term->filter( $filter );
+
+ if ( $output == ARRAY_A ) {
+ return $_term->to_array();
} elseif ( $output == ARRAY_N ) {
- $__term = array_values(get_object_vars($_term));
- return $__term;
- } else {
- return $_term;
+ return array_values( $_term->to_array() );
}
+
+ return $_term;
}
/**
* If $value does not exist, the return value will be false. If $taxonomy exists
* and $field and $value combinations exist, the Term will be returned.
*
+ * @todo Better formatting for DocBlock.
+ *
* @since 2.3.0
+ * @since 4.4.0 `$taxonomy` is optional if `$field` is 'term_taxonomy_id'. Converted to return
+ * a WP_Term object if `$output` is `OBJECT`.
*
* @global wpdb $wpdb WordPress database abstraction object.
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
*
- * @param string $field Either 'slug', 'name', 'id' (term_id), or 'term_taxonomy_id'
- * @param string|int $value Search for this term value
- * @param string $taxonomy Taxonomy Name
- * @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
- * @param string $filter Optional, default is raw or no WordPress defined filter will applied.
- * @return mixed Term Row from database. Will return false if $taxonomy does not exist or $term was not found.
+ * @param string $field Either 'slug', 'name', 'id' (term_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 Constant OBJECT, ARRAY_A, or ARRAY_N
+ * @param string $filter Optional, default is raw or no WordPress defined filter will applied.
+ * @return WP_Term|bool WP_Term instance on success. Will return false if `$taxonomy` does not exist
+ * or `$term` was not found.
*/
-function get_term_by($field, $value, $taxonomy, $output = OBJECT, $filter = 'raw') {
+function get_term_by( $field, $value, $taxonomy = '', $output = OBJECT, $filter = 'raw' ) {
global $wpdb;
- if ( ! taxonomy_exists($taxonomy) )
+ // 'term_taxonomy_id' lookups don't require taxonomy checks.
+ if ( 'term_taxonomy_id' !== $field && ! taxonomy_exists( $taxonomy ) ) {
return false;
+ }
+
+ $tax_clause = $wpdb->prepare( "AND tt.taxonomy = %s", $taxonomy );
if ( 'slug' == $field ) {
- $field = 't.slug';
+ $_field = 't.slug';
$value = sanitize_title($value);
if ( empty($value) )
return false;
- } else if ( 'name' == $field ) {
+ } elseif ( 'name' == $field ) {
// Assume already escaped
$value = wp_unslash($value);
- $field = 't.name';
- } else if ( 'term_taxonomy_id' == $field ) {
+ $_field = 't.name';
+ } elseif ( 'term_taxonomy_id' == $field ) {
$value = (int) $value;
- $field = 'tt.term_taxonomy_id';
+ $_field = 'tt.term_taxonomy_id';
+
+ // No `taxonomy` clause when searching by 'term_taxonomy_id'.
+ $tax_clause = '';
} else {
$term = get_term( (int) $value, $taxonomy, $output, $filter );
- if ( is_wp_error( $term ) )
+ if ( is_wp_error( $term ) || is_null( $term ) ) {
$term = false;
+ }
return $term;
}
- $term = $wpdb->get_row( $wpdb->prepare( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = %s AND $field = %s LIMIT 1", $taxonomy, $value ) );
+ $term = $wpdb->get_row( $wpdb->prepare( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE $_field = %s", $value ) . " $tax_clause LIMIT 1" );
if ( ! $term )
return false;
- wp_cache_add( $term->term_id, $term, $taxonomy );
-
- /** This filter is documented in wp-includes/taxonomy.php */
- $term = apply_filters( 'get_term', $term, $taxonomy );
-
- /** This filter is documented in wp-includes/taxonomy.php */
- $term = apply_filters( "get_$taxonomy", $term, $taxonomy );
+ // In the case of 'term_taxonomy_id', override the provided `$taxonomy` with whatever we find in the db.
+ if ( 'term_taxonomy_id' === $field ) {
+ $taxonomy = $term->taxonomy;
+ }
- $term = sanitize_term($term, $taxonomy, $filter);
+ wp_cache_add( $term->term_id, $term, 'terms' );
- if ( $output == OBJECT ) {
- return $term;
- } elseif ( $output == ARRAY_A ) {
- return get_object_vars($term);
- } elseif ( $output == ARRAY_N ) {
- return array_values(get_object_vars($term));
- } else {
- return $term;
- }
+ return get_term( $term, $taxonomy, $output, $filter );
}
/**
*
* Will return an empty array if $term does not exist in $taxonomy.
*
- * @since 2.3.0
- *
- * @global wpdb $wpdb WordPress database abstraction object.
+ * @since 2.3.0
*
- * @param string $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
+ * @param string $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) )
/**
* Get sanitized Term field.
*
- * Does checks for $term, based on the $taxonomy. The function is for contextual
- * reasons and for simplicity of usage. See sanitize_term_field() for more
- * information.
+ * The function is for contextual reasons and for simplicity of usage.
*
* @since 2.3.0
+ * @since 4.4.0 The `$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 $term Term ID
- * @param string $taxonomy Taxonomy Name
- * @param string $context Optional, default is display. Look at sanitize_term_field() for available options.
- * @return mixed Will return an empty string if $term is not an object or if $field is not set in $term.
+ * @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, default is display. Look at sanitize_term_field() for available options.
+ * @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 = (int) $term;
+function get_term_field( $field, $term, $taxonomy = '', $context = 'display' ) {
$term = get_term( $term, $taxonomy );
if ( is_wp_error($term) )
return $term;
if ( !isset($term->$field) )
return '';
- return sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
+ return sanitize_term_field( $field, $term->$field, $term->term_id, $term->taxonomy, $context );
}
/**
*
* @since 2.3.0
*
- * @param int|object $id Term ID or Object
- * @param string $taxonomy Taxonomy Name
- * @return mixed|null|WP_Error Will return empty string if $term is not an object.
+ * @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 );
* You can fully inject any customizations to the query before it is sent, as
* well as control the output with a filter.
*
- * The 'get_terms' filter will be called when the cache has the term and will
+ * 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 'list_terms_exclusions' filter passes the compiled exclusions along with
+ * The {@see 'list_terms_exclusions'} filter passes the compiled exclusions along with
* the $args.
*
- * The 'get_terms_orderby' filter passes the ORDER BY clause for the query
+ * The {@see 'get_terms_orderby'} filter passes the `ORDER BY` clause for the query
* along with the $args array.
*
- * The 'get_terms_fields' filter passes the fields for the SELECT query
- * along with the $args array.
+ * Prior to 4.5.0, the first parameter of `get_terms()` was a taxonomy or list of taxonomies:
+ *
+ * $terms = get_terms( 'post_tag', array(
+ * 'hide_empty' => false,
+ * ) );
+ *
+ * Since 4.5.0, taxonomies should be passed via the 'taxonomy' argument in the `$args` array:
+ *
+ * $terms = get_terms( array(
+ * 'taxonomy' => 'post_tag',
+ * 'hide_empty' => false,
+ * ) );
*
* @since 2.3.0
+ * @since 4.2.0 Introduced 'name' and 'childless' parameters.
+ * @since 4.4.0 Introduced the ability to pass 'term_id' as an alias of 'id' for the `orderby` parameter.
+ * Introduced the 'meta_query' and 'update_term_meta_cache' parameters. Converted to return
+ * a list of WP_Term objects.
+ * @since 4.5.0 Changed the function signature so that the `$args` array can be provided as the first parameter.
+ * Introduced 'meta_key' and 'meta_value' parameters. Introduced the ability to order results by metadata.
*
- * @global wpdb $wpdb WordPress database abstraction object.
+ * @internal The `$deprecated` parameter is parsed for backward compatibility only.
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ * @global array $wp_filter
*
- * @param string|array $taxonomies Taxonomy name or list of Taxonomy names.
* @param array|string $args {
* Optional. Array or string of arguments to get terms.
*
- * @type string $orderby Field(s) to order terms by. Accepts term fields ('name', 'slug',
- * 'term_group', 'term_id', 'id'), 'count' for term taxonomy count,
- * 'include' to match the 'order' of the $include param, or 'none'
- * to skip ORDER BY. Defaults to '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 array|string $include Array or comma/space-separated string of term ids to include.
- * Default empty array.
- * @type array|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 array|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 $number Maximum number of terms to return. Accepts 1+ or -1 (all).
- * Default -1.
- * @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
- * term objects), 'ids' or 'names' (returns an array of integers
- * or strings, respectively. Default 'all'.
- * @type string|array $slug Optional. Slug or array of slugs to return term(s) for. Default empty.
- * @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 empty (disabled). Default empty.
- * @type int $child_of Term ID to retrieve child terms of. If multiple taxonomies
- * are passed, $child_of is ignored. Default 0.
- * @type int|string $parent Parent term ID to retrieve direct-child terms of. Default empty.
- * @type string $cache_domain Unique cache key to be produced when this query is stored in an
- * object cache. Default is 'core'.
+ * @type string|array $taxonomy Taxonomy name, or array of taxonomies, to which results should
+ * be limited.
+ * @type string $orderby Field(s) to order terms by. Accepts term fields ('name', 'slug',
+ * 'term_group', 'term_id', 'id', 'description'), 'count' for term
+ * taxonomy count, 'include' to match the 'order' of the $include param,
+ * 'meta_value', 'meta_value_num', the value of `$meta_key`, the array
+ * keys of `$meta_query`, or 'none' to omit the ORDER BY clause.
+ * Defaults to '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 array|string $include Array or comma/space-separated string of term ids to include.
+ * Default empty array.
+ * @type array|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 array|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).
+ * @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), 'ids' (returns an array of ids), 'id=>parent' (returns
+ * an associative array with ids as keys, parent term IDs as values),
+ * 'names' (returns an array of term names), 'count' (returns the number
+ * of matching terms), 'id=>name' (returns an associative array with ids
+ * as keys, term names as values), or 'id=>slug' (returns an associative
+ * array with ids as keys, term slugs as values). Default 'all'.
+ * @type string|array $name Optional. Name or array of names to return term(s) for. Default empty.
+ * @type string|array $slug Optional. Slug or array of slugs to return term(s) for. Default empty.
+ * @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 empty (disabled). Default empty.
+ * @type int $child_of Term ID to retrieve child terms of. If multiple taxonomies
+ * are passed, $child_of is ignored. Default 0.
+ * @type int|string $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 is 'core'.
+ * @type bool $update_term_meta_cache Whether to prime meta caches for matched terms. Default true.
+ * @type array $meta_query Meta query clauses to limit retrieved terms by.
+ * See `WP_Meta_Query`. Default empty.
+ * @type string $meta_key Limit terms to those matching a specific metadata key. Can be used in
+ * conjunction with `$meta_value`.
+ * @type string $meta_value Limit terms to those matching a specific metadata value. Usually used
+ * in conjunction with `$meta_key`.
* }
- * @return array|WP_Error List of Term Objects and their children. Will return WP_Error, if any of $taxonomies
- * do not exist.
+ * @param array $deprecated Argument array, when using the legacy function parameter format. If present, this
+ * parameter will be interpreted as `$args`, and the first function parameter will
+ * be parsed as a taxonomy or array of taxonomies.
+ * @return array|int|WP_Error List of WP_Term instances and their children. Will return WP_Error, if any of $taxonomies
+ * do not exist.
*/
-function get_terms( $taxonomies, $args = '' ) {
+function get_terms( $args = array(), $deprecated = '' ) {
global $wpdb;
- $empty_array = array();
- $single_taxonomy = ! is_array( $taxonomies ) || 1 === count( $taxonomies );
- if ( ! is_array( $taxonomies ) ) {
- $taxonomies = array( $taxonomies );
+ $defaults = array(
+ 'taxonomy' => null,
+ 'orderby' => 'name',
+ 'order' => 'ASC',
+ 'hide_empty' => true,
+ 'include' => array(),
+ 'exclude' => array(),
+ 'exclude_tree' => array(),
+ 'number' => '',
+ 'offset' => '',
+ 'fields' => 'all',
+ 'name' => '',
+ 'slug' => '',
+ 'hierarchical' => true,
+ 'search' => '',
+ 'name__like' => '',
+ 'description__like' => '',
+ 'pad_counts' => false,
+ 'get' => '',
+ 'child_of' => 0,
+ 'parent' => '',
+ 'childless' => false,
+ 'cache_domain' => 'core',
+ 'update_term_meta_cache' => true,
+ 'meta_query' => ''
+ );
+
+ /*
+ * Legacy argument format ($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)
+ */
+ $key_intersect = array_intersect_key( $defaults, (array) $args );
+ $do_legacy_args = $deprecated || empty( $key_intersect );
+
+ $taxonomies = null;
+ if ( $do_legacy_args ) {
+ $taxonomies = (array) $args;
+ $args = $deprecated;
+ } elseif ( isset( $args['taxonomy'] ) && null !== $args['taxonomy'] ) {
+ $taxonomies = (array) $args['taxonomy'];
+ unset( $args['taxonomy'] );
}
- foreach ( $taxonomies as $taxonomy ) {
- if ( ! taxonomy_exists($taxonomy) ) {
- $error = new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
- return $error;
+ $empty_array = array();
+
+ if ( $taxonomies ) {
+ foreach ( $taxonomies as $taxonomy ) {
+ if ( ! taxonomy_exists($taxonomy) ) {
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
+ }
}
}
- $defaults = array('orderby' => 'name', 'order' => 'ASC',
- 'hide_empty' => true, 'exclude' => array(), 'exclude_tree' => array(), 'include' => array(),
- 'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
- 'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '', 'description__like' => '',
- 'pad_counts' => false, 'offset' => '', 'search' => '', 'cache_domain' => 'core' );
- $args = wp_parse_args( $args, $defaults );
+ /**
+ * Filter the terms query default arguments.
+ *
+ * Use 'get_terms_args' to filter the passed arguments.
+ *
+ * @since 4.4.0
+ *
+ * @param array $defaults An array of default get_terms() arguments.
+ * @param array $taxonomies An array of taxonomies.
+ */
+ $args = wp_parse_args( $args, apply_filters( 'get_terms_defaults', $defaults, $taxonomies ) );
+
$args['number'] = absint( $args['number'] );
$args['offset'] = absint( $args['offset'] );
// Save queries by not crawling the tree in the case of multiple taxes or a flat tax.
- if ( ! $single_taxonomy || ! is_taxonomy_hierarchical( reset( $taxonomies ) ) ) {
+ $has_hierarchical_tax = false;
+ if ( $taxonomies ) {
+ foreach ( $taxonomies as $_tax ) {
+ if ( is_taxonomy_hierarchical( $_tax ) ) {
+ $has_hierarchical_tax = true;
+ }
+ }
+ }
+
+ if ( ! $has_hierarchical_tax ) {
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
}
if ( 'all' == $args['get'] ) {
+ $args['childless'] = false;
$args['child_of'] = 0;
$args['hide_empty'] = 0;
$args['hierarchical'] = false;
*
* @since 3.1.0
*
- * @param array $args An array of arguments.
- * @param string|array $taxonomies A taxonomy or array of taxonomies.
+ * @param array $args An array of get_terms() arguments.
+ * @param array $taxonomies An array of taxonomies.
*/
$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 ) {
- $hierarchy = _get_term_hierarchy( reset( $taxonomies ) );
- if ( ! isset( $hierarchy[ $child_of ] ) ) {
- return $empty_array;
- }
+ $_parent = $child_of;
+ } elseif ( $parent ) {
+ $_parent = $parent;
+ } else {
+ $_parent = false;
}
- $parent = $args['parent'];
- if ( $parent ) {
- $hierarchy = _get_term_hierarchy( reset( $taxonomies ) );
- if ( ! isset( $hierarchy[ $parent ] ) ) {
- return $empty_array;
- }
- }
+ if ( $_parent ) {
+ $in_hierarchy = false;
+ foreach ( $taxonomies as $_tax ) {
+ $hierarchy = _get_term_hierarchy( $_tax );
- // $args can be whatever, only use the args defined in defaults to compute the key
- $filter_key = ( has_filter('list_terms_exclusions') ) ? serialize($GLOBALS['wp_filter']['list_terms_exclusions']) : '';
- $key = md5( serialize( wp_array_slice_assoc( $args, array_keys( $defaults ) ) ) . serialize( $taxonomies ) . $filter_key );
- $last_changed = wp_cache_get( 'last_changed', 'terms' );
- if ( ! $last_changed ) {
- $last_changed = microtime();
- wp_cache_set( 'last_changed', $last_changed, 'terms' );
- }
- $cache_key = "get_terms:$key:$last_changed";
- $cache = wp_cache_get( $cache_key, 'terms' );
- if ( false !== $cache ) {
+ if ( isset( $hierarchy[ $_parent ] ) ) {
+ $in_hierarchy = true;
+ }
+ }
- /**
- * Filter the given taxonomy's terms cache.
- *
- * @since 2.3.0
- *
- * @param array $cache Cached array of terms for the given taxonomy.
- * @param string|array $taxonomies A taxonomy or array of taxonomies.
- * @param array $args An array of arguments to get terms.
- */
- $cache = apply_filters( 'get_terms', $cache, $taxonomies, $args );
- return $cache;
+ if ( ! $in_hierarchy ) {
+ return $empty_array;
+ }
}
$_orderby = strtolower( $args['orderby'] );
if ( 'count' == $_orderby ) {
$orderby = 'tt.count';
- } else if ( 'name' == $_orderby ) {
+ } elseif ( 'name' == $_orderby ) {
$orderby = 't.name';
- } else if ( 'slug' == $_orderby ) {
+ } elseif ( 'slug' == $_orderby ) {
$orderby = 't.slug';
- } else if ( 'include' == $_orderby && ! empty( $args['include'] ) ) {
+ } elseif ( 'include' == $_orderby && ! empty( $args['include'] ) ) {
$include = implode( ',', array_map( 'absint', $args['include'] ) );
$orderby = "FIELD( t.term_id, $include )";
- } else if ( 'term_group' == $_orderby ) {
+ } elseif ( 'term_group' == $_orderby ) {
$orderby = 't.term_group';
- } else if ( 'none' == $_orderby ) {
+ } elseif ( 'description' == $_orderby ) {
+ $orderby = 'tt.description';
+ } elseif ( 'none' == $_orderby ) {
$orderby = '';
- } elseif ( empty($_orderby) || 'id' == $_orderby ) {
+ } elseif ( empty( $_orderby ) || 'id' == $_orderby || 'term_id' === $_orderby ) {
$orderby = 't.term_id';
} else {
$orderby = 't.name';
}
+
/**
* Filter 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 terms query arguments.
- * @param string|array $taxonomies A taxonomy or array of taxonomies.
+ * @param string $orderby `ORDERBY` clause of the terms query.
+ * @param array $args An array of terms query arguments.
+ * @param array $taxonomies An array of taxonomies.
*/
$orderby = apply_filters( 'get_terms_orderby', $orderby, $args, $taxonomies );
$order = 'ASC';
}
- $where = "tt.taxonomy IN ('" . implode("', '", $taxonomies) . "')";
+ $where_conditions = array();
+
+ if ( $taxonomies ) {
+ $where_conditions[] = "tt.taxonomy IN ('" . implode("', '", array_map( 'esc_sql', $taxonomies ) ) . "')";
+ }
$exclude = $args['exclude'];
$exclude_tree = $args['exclude_tree'];
}
if ( ! empty( $inclusions ) ) {
- $inclusions = ' AND t.term_id IN ( ' . $inclusions . ' )';
- $where .= $inclusions;
+ $where_conditions[] = 't.term_id IN ( ' . $inclusions . ' )';
}
+ $exclusions = array();
if ( ! empty( $exclude_tree ) ) {
$exclude_tree = wp_parse_id_list( $exclude_tree );
$excluded_children = $exclude_tree;
(array) get_terms( $taxonomies[0], array( 'child_of' => intval( $extrunk ), 'fields' => 'ids', 'hide_empty' => 0 ) )
);
}
- $exclusions = implode( ',', array_map( 'intval', $excluded_children ) );
- } else {
- $exclusions = '';
+ $exclusions = array_merge( $excluded_children, $exclusions );
}
if ( ! empty( $exclude ) ) {
- $exterms = wp_parse_id_list( $exclude );
- if ( empty( $exclusions ) ) {
- $exclusions = implode( ',', $exterms );
- } else {
- $exclusions .= ', ' . implode( ',', $exterms );
+ $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 = ' AND t.term_id NOT IN (' . $exclusions . ')';
+ $exclusions = 't.term_id NOT IN (' . implode( ',', array_map( 'intval', $exclusions ) ) . ')';
+ } else {
+ $exclusions = '';
}
/**
*
* @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|array $taxonomies A taxonomy or array of taxonomies.
+ * @param string $exclusions `NOT IN` clause of the terms query.
+ * @param array $args An array of terms query arguments.
+ * @param array $taxonomies An array of taxonomies.
*/
$exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies );
if ( ! empty( $exclusions ) ) {
- $where .= $exclusions;
+ // Must do string manipulation here for backward compatibility with filter.
+ $where_conditions[] = preg_replace( '/^\s*AND\s*/', '', $exclusions );
+ }
+
+ if ( ! empty( $args['name'] ) ) {
+ $names = (array) $args['name'];
+ foreach ( $names as &$_name ) {
+ // `sanitize_term_field()` returns slashed data.
+ $_name = stripslashes( sanitize_term_field( 'name', $_name, 0, reset( $taxonomies ), 'db' ) );
+ }
+
+ $where_conditions[] = "t.name IN ('" . implode( "', '", array_map( 'esc_sql', $names ) ) . "')";
}
if ( ! empty( $args['slug'] ) ) {
if ( is_array( $args['slug'] ) ) {
$slug = array_map( 'sanitize_title', $args['slug'] );
- $where .= " AND t.slug IN ('" . implode( "', '", $slug ) . "')";
+ $where_conditions[] = "t.slug IN ('" . implode( "', '", $slug ) . "')";
} else {
$slug = sanitize_title( $args['slug'] );
- $where .= " AND t.slug = '$slug'";
+ $where_conditions[] = "t.slug = '$slug'";
}
}
if ( ! empty( $args['name__like'] ) ) {
- $where .= $wpdb->prepare( " AND t.name LIKE %s", '%' . $wpdb->esc_like( $args['name__like'] ) . '%' );
+ $where_conditions[] = $wpdb->prepare( "t.name LIKE %s", '%' . $wpdb->esc_like( $args['name__like'] ) . '%' );
}
if ( ! empty( $args['description__like'] ) ) {
- $where .= $wpdb->prepare( " AND tt.description LIKE %s", '%' . $wpdb->esc_like( $args['description__like'] ) . '%' );
+ $where_conditions[] = $wpdb->prepare( "tt.description LIKE %s", '%' . $wpdb->esc_like( $args['description__like'] ) . '%' );
}
if ( '' !== $parent ) {
$parent = (int) $parent;
- $where .= " AND tt.parent = '$parent'";
+ $where_conditions[] = "tt.parent = '$parent'";
}
$hierarchical = $args['hierarchical'];
$hierarchical = false;
}
if ( $args['hide_empty'] && !$hierarchical ) {
- $where .= ' AND tt.count > 0';
+ $where_conditions[] = 'tt.count > 0';
}
$number = $args['number'];
$offset = $args['offset'];
- // don't limit the query results when we have to descend the family tree
+ // 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;
if ( ! empty( $args['search'] ) ) {
$like = '%' . $wpdb->esc_like( $args['search'] ) . '%';
- $where .= $wpdb->prepare( ' AND ((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like );
+ $where_conditions[] = $wpdb->prepare( '((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like );
+ }
+
+ // Meta query support.
+ $join = '';
+ $distinct = '';
+
+ $mquery = new WP_Meta_Query();
+ $mquery->parse_query_vars( $args );
+ $mq_sql = $mquery->get_sql( 'term', 't', 'term_id' );
+ $meta_clauses = $mquery->get_clauses();
+
+ if ( ! empty( $meta_clauses ) ) {
+ $join .= $mq_sql['join'];
+ $where_conditions[] = preg_replace( '/^\s*AND\s*/', '', $mq_sql['where'] );
+ $distinct .= "DISTINCT";
+
+ // 'orderby' support.
+ $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 ( ! empty( $args['orderby'] ) && in_array( $args['orderby'], $allowed_keys ) ) {
+ switch( $args['orderby'] ) {
+ case $primary_meta_key:
+ case 'meta_value':
+ if ( ! empty( $primary_meta_query['type'] ) ) {
+ $orderby = "ORDER BY CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})";
+ } else {
+ $orderby = "ORDER BY {$primary_meta_query['alias']}.meta_value";
+ }
+ break;
+
+ case 'meta_value_num':
+ $orderby = "ORDER BY {$primary_meta_query['alias']}.meta_value+0";
+ break;
+
+ default:
+ if ( array_key_exists( $args['orderby'], $meta_clauses ) ) {
+ // $orderby corresponds to a meta_query clause.
+ $meta_clause = $meta_clauses[ $args['orderby'] ];
+ $orderby = "ORDER BY CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})";
+ }
+ break;
+ }
+ }
}
$selects = array();
break;
case 'ids':
case 'id=>parent':
- $selects = array( 't.term_id', 'tt.parent', 'tt.count' );
+ $selects = array( 't.term_id', 'tt.parent', 'tt.count', 'tt.taxonomy' );
break;
case 'names':
- $selects = array( 't.term_id', 'tt.parent', 'tt.count', 't.name' );
+ $selects = array( 't.term_id', 'tt.parent', 'tt.count', 't.name', 'tt.taxonomy' );
break;
case 'count':
$orderby = '';
$selects = array( 'COUNT(*)' );
break;
case 'id=>name':
- $selects = array( 't.term_id', 't.name', 'tt.count' );
+ $selects = array( 't.term_id', 't.name', 'tt.count', 'tt.taxonomy' );
break;
case 'id=>slug':
- $selects = array( 't.term_id', 't.slug', 'tt.count' );
+ $selects = array( 't.term_id', 't.slug', 'tt.count', 'tt.taxonomy' );
break;
}
/**
* Filter the fields to select in the terms query.
*
+ * Field lists modified using this filter will only modify the term fields returned
+ * by the function when the `$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 array $selects An array of fields to select for the terms query.
- * @param array $args An array of term query arguments.
- * @param string|array $taxonomies A taxonomy or array of taxonomies.
+ * @param array $selects An array of fields to select for the terms query.
+ * @param array $args An array of term query arguments.
+ * @param array $taxonomies An array of taxonomies.
*/
$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";
+ $join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
- $pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits' );
+ $where = implode( ' AND ', $where_conditions );
+
+ $pieces = array( 'fields', 'join', 'where', 'distinct', 'orderby', 'order', 'limits' );
/**
* Filter the terms query SQL clauses.
*
* @since 3.1.0
*
- * @param array $pieces Terms query SQL clauses.
- * @param string|array $taxonomies A taxonomy or array of taxonomies.
- * @param array $args An array of terms query arguments.
+ * @param array $pieces Terms query SQL clauses.
+ * @param array $taxonomies An array of taxonomies.
+ * @param array $args An array of terms 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' ] : '';
- $query = "SELECT $fields FROM $wpdb->terms AS t $join WHERE $where $orderby $order $limits";
+ if ( $where ) {
+ $where = "WHERE $where";
+ }
+
+ $query = "SELECT $distinct $fields FROM $wpdb->terms AS t $join $where $orderby $order $limits";
+
+ // $args can be anything. Only use the args defined in defaults to compute the key.
+ $key = md5( serialize( wp_array_slice_assoc( $args, array_keys( $defaults ) ) ) . serialize( $taxonomies ) . $query );
+ $last_changed = wp_cache_get( 'last_changed', 'terms' );
+ if ( ! $last_changed ) {
+ $last_changed = microtime();
+ wp_cache_set( 'last_changed', $last_changed, 'terms' );
+ }
+ $cache_key = "get_terms:$key:$last_changed";
+ $cache = wp_cache_get( $cache_key, 'terms' );
+ if ( false !== $cache ) {
+ if ( 'all' === $_fields ) {
+ $cache = array_map( 'get_term', $cache );
+ }
+
+ /**
+ * Filter the given taxonomy's terms cache.
+ *
+ * @since 2.3.0
+ *
+ * @param array $cache Cached array of terms for the given taxonomy.
+ * @param array $taxonomies An array of taxonomies.
+ * @param array $args An array of get_terms() arguments.
+ */
+ return apply_filters( 'get_terms', $cache, $taxonomies, $args );
+ }
if ( 'count' == $_fields ) {
- $term_count = $wpdb->get_var($query);
- return $term_count;
+ return $wpdb->get_var( $query );
}
$terms = $wpdb->get_results($query);
update_term_cache( $terms );
}
+ // Prime termmeta cache.
+ if ( $args['update_term_meta_cache'] ) {
+ $term_ids = wp_list_pluck( $terms, 'term_id' );
+ update_termmeta_cache( $term_ids );
+ }
+
if ( empty($terms) ) {
wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS );
/** This filter is documented in wp-includes/taxonomy.php */
- $terms = apply_filters( 'get_terms', array(), $taxonomies, $args );
- return $terms;
+ return apply_filters( 'get_terms', array(), $taxonomies, $args );
}
if ( $child_of ) {
- $children = _get_term_hierarchy( reset( $taxonomies ) );
- if ( ! empty( $children ) ) {
- $terms = _get_term_children( $child_of, $terms, reset( $taxonomies ) );
+ foreach ( $taxonomies as $_tax ) {
+ $children = _get_term_hierarchy( $_tax );
+ if ( ! empty( $children ) ) {
+ $terms = _get_term_children( $child_of, $terms, $_tax );
+ }
}
}
// Update term counts to include children.
if ( $args['pad_counts'] && 'all' == $_fields ) {
- _pad_term_counts( $terms, reset( $taxonomies ) );
+ foreach ( $taxonomies as $_tax ) {
+ _pad_term_counts( $terms, $_tax );
+ }
}
+
// Make sure we show empty categories that have children.
if ( $hierarchical && $args['hide_empty'] && is_array( $terms ) ) {
foreach ( $terms as $k => $term ) {
if ( ! $term->count ) {
- $children = get_term_children( $term->term_id, reset( $taxonomies ) );
+ $children = get_term_children( $term->term_id, $term->taxonomy );
if ( is_array( $children ) ) {
foreach ( $children as $child_id ) {
- $child = get_term( $child_id, reset( $taxonomies ) );
+ $child = get_term( $child_id, $term->taxonomy );
if ( $child->count ) {
continue 2;
}
}
}
- // It really is empty
+ // It really is empty.
unset($terms[$k]);
}
}
}
- reset( $terms );
$_terms = array();
if ( 'id=>parent' == $_fields ) {
- while ( $term = array_shift( $terms ) ) {
- $_terms[$term->term_id] = $term->parent;
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->parent;
}
} elseif ( 'ids' == $_fields ) {
- while ( $term = array_shift( $terms ) ) {
+ foreach ( $terms as $term ) {
$_terms[] = $term->term_id;
}
} elseif ( 'names' == $_fields ) {
- while ( $term = array_shift( $terms ) ) {
+ foreach ( $terms as $term ) {
$_terms[] = $term->name;
}
} elseif ( 'id=>name' == $_fields ) {
- while ( $term = array_shift( $terms ) ) {
- $_terms[$term->term_id] = $term->name;
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->name;
}
} elseif ( 'id=>slug' == $_fields ) {
- while ( $term = array_shift( $terms ) ) {
- $_terms[$term->term_id] = $term->slug;
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->slug;
}
}
$terms = $_terms;
}
- if ( $number && is_array( $terms ) && count( $terms ) > $number ) {
- $terms = array_slice( $terms, $offset, $number );
+ // Hierarchical queries are not limited, so 'offset' and 'number' must be handled now.
+ if ( $hierarchical && $number && is_array( $terms ) ) {
+ if ( $offset >= count( $terms ) ) {
+ $terms = array();
+ } else {
+ $terms = array_slice( $terms, $offset, $number, true );
+ }
}
wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
- /** This filter is documented in wp-includes/taxonomy */
- $terms = apply_filters( 'get_terms', $terms, $taxonomies, $args );
- return $terms;
+ if ( 'all' === $_fields ) {
+ $terms = array_map( 'get_term', $terms );
+ }
+
+ /** This filter is documented in wp-includes/taxonomy.php */
+ return apply_filters( 'get_terms', $terms, $taxonomies, $args );
+}
+
+/**
+ * Adds metadata to a term.
+ *
+ * @since 4.4.0
+ *
+ * @param int $term_id Term ID.
+ * @param string $meta_key Metadata name.
+ * @param mixed $meta_value Metadata value.
+ * @param bool $unique Optional. Whether to bail if an entry with the same key is found for the term.
+ * Default false.
+ * @return int|WP_Error|bool Meta ID on success. WP_Error when term_id is ambiguous between taxonomies.
+ * False on failure.
+ */
+function add_term_meta( $term_id, $meta_key, $meta_value, $unique = false ) {
+ // Bail if term meta table is not installed.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ return 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 );
+ }
+
+ $added = add_metadata( 'term', $term_id, $meta_key, $meta_value, $unique );
+
+ // Bust term query cache.
+ if ( $added ) {
+ wp_cache_set( 'last_changed', microtime(), 'terms' );
+ }
+
+ return $added;
+}
+
+/**
+ * Removes metadata matching criteria from a term.
+ *
+ * @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.
+ * @return bool True on success, false on failure.
+ */
+function delete_term_meta( $term_id, $meta_key, $meta_value = '' ) {
+ // Bail if term meta table is not installed.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ return false;
+ }
+
+ $deleted = delete_metadata( 'term', $term_id, $meta_key, $meta_value );
+
+ // Bust term query cache.
+ if ( $deleted ) {
+ wp_cache_set( 'last_changed', microtime(), 'terms' );
+ }
+
+ return $deleted;
+}
+
+/**
+ * Retrieves metadata for a term.
+ *
+ * @since 4.4.0
+ *
+ * @param int $term_id Term ID.
+ * @param string $key Optional. The meta key to retrieve. If no key is provided, fetches all metadata for the term.
+ * @param bool $single Whether to return a single value. If false, an array of all values matching the
+ * `$term_id`/`$key` pair will be returned. Default: false.
+ * @return mixed If `$single` is false, an array of metadata values. If `$single` is true, a single metadata value.
+ */
+function get_term_meta( $term_id, $key = '', $single = false ) {
+ // Bail if term meta table is not installed.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ return 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.
+ *
+ * @since 4.4.0
+ *
+ * @param int $term_id Term ID.
+ * @param string $meta_key Metadata key.
+ * @param mixed $meta_value Metadata value.
+ * @param mixed $prev_value Optional. Previous value to check before removing.
+ * @return int|WP_Error|bool Meta ID if the key didn't previously exist. True on successful update.
+ * WP_Error when term_id is ambiguous between taxonomies. False on failure.
+ */
+function update_term_meta( $term_id, $meta_key, $meta_value, $prev_value = '' ) {
+ // Bail if term meta table is not installed.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ return 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 );
+ }
+
+ $updated = update_metadata( 'term', $term_id, $meta_key, $meta_value, $prev_value );
+
+ // Bust term query cache.
+ if ( $updated ) {
+ wp_cache_set( 'last_changed', microtime(), 'terms' );
+ }
+
+ return $updated;
+}
+
+/**
+ * Updates metadata cache for list of term IDs.
+ *
+ * Performs SQL query to retrieve all metadata for the terms matching `$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 Returns false if there is nothing to update. Returns an array of metadata on success.
+ */
+function update_termmeta_cache( $term_ids ) {
+ // Bail if term meta table is not installed.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ return;
+ }
+
+ return update_meta_cache( 'term', $term_ids );
}
/**
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param int|string $term The term to check
- * @param string $taxonomy The taxonomy name to use
- * @param int $parent Optional. ID of parent term under which to confine the exists search.
+ * @param int|string $term The term to check
+ * @param string $taxonomy The taxonomy name to use
+ * @param int $parent 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 the taxonomy
*
* @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 child of $term1
+ * @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 ) )
*
* @since 2.3.0
*
- * @param array|object $term The term to check
- * @param string $taxonomy The taxonomy name to use
- * @param string $context Default is 'display'.
- * @return array|object Term with all fields sanitized
+ * @param array|object $term The term to check.
+ * @param string $taxonomy The taxonomy name to use.
+ * @param string $context Optional. Context in which to sanitize the term. Accepts 'edit', 'db',
+ * 'display', 'attribute', or 'js'. Default 'display'.
+ * @return array|object Term with all fields sanitized.
*/
function sanitize_term($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 );
*
* @since 2.3.0
*
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @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 Either edit, db, display, attribute, or js.
- * @return mixed sanitized field
+ * @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 $context Context in which to sanitize the term field. Accepts 'edit', 'db', 'display',
+ * 'attribute', or 'js'.
+ * @return mixed Sanitized field.
*/
function sanitize_term_field($field, $value, $term_id, $taxonomy, $context) {
$int_fields = array( 'parent', 'term_id', 'count', 'term_group', 'term_taxonomy_id', 'object_id' );
* @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);
- } else if ( 'db' == $context ) {
+ } elseif ( 'db' == $context ) {
/**
* Filter a term field value before it is sanitized.
* @param mixed $value Value of the taxonomy field.
*/
$value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
+
// Back compat filters
if ( 'slug' == $field ) {
/**
$value = apply_filters( 'pre_category_nicename', $value );
}
- } else if ( 'rss' == $context ) {
+ } elseif ( 'rss' == $context ) {
/**
* Filter the term field for use in RSS.
/**
* Filter the taxonomy field for use in RSS.
*
- * The dynamic portions of the hook name, `$taxonomy`, and $field, refer
+ * The dynamic portions of the hook name, `$taxonomy`, and `$field`, refer
* to the taxonomy slug and field name, respectively.
*
* @since 2.3.0
/**
* Filter the taxonomy field sanitized for display.
*
- * The dynamic portions of the filter name, `$taxonomy`, and $field, refer
+ * The dynamic portions of the filter name, `$taxonomy`, and `$field`, refer
* to the taxonomy slug and taxonomy field, respectively.
*
* @since 2.3.0
$value = apply_filters( "{$taxonomy}_{$field}", $value, $term_id, $context );
}
- if ( 'attribute' == $context )
+ if ( 'attribute' == $context ) {
$value = esc_attr($value);
- else if ( 'js' == $context )
+ } elseif ( 'js' == $context ) {
$value = esc_js($value);
-
+ }
return $value;
}
*
* @since 2.3.0
*
- * @param string $taxonomy Taxonomy name
- * @param array|string $args Overwrite defaults. See get_terms()
- * @return int|WP_Error How many terms are in $taxonomy. WP_Error if $taxonomy does not exist.
+ * @param string $taxonomy Taxonomy name.
+ * @param array|string $args Optional. Array of arguments that get passed to {@see get_terms()}.
+ * Default empty array.
+ * @return array|int|WP_Error Number of terms in that taxonomy or WP_Error if the taxonomy does not exist.
*/
function wp_count_terms( $taxonomy, $args = array() ) {
$defaults = array('hide_empty' => false);
*
* @since 2.3.0
*
- * @param int $object_id The term Object Id that refers to the term
+ * @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 ) {
* If the term is a parent of other terms, then the children will be updated to
* that term's parent.
*
- * The $args 'default' will only override the terms found, if there is only one
- * term found. Any other and the found terms are used.
- *
- * The $args 'force_default' will force the term supplied as default to be
- * assigned even if the object was not going to be termless
+ * 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. Change 'default' term id and override found term ids.
- * @return bool|WP_Error Returns false if not term; true if completes delete action.
+ * @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;
* @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.
do_action( 'edited_term_taxonomies', $edit_tt_ids );
}
- $objects = $wpdb->get_col( $wpdb->prepare( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $tt_id ) );
+ // Get the term before deleting it or its term relationships so we can pass to actions below.
+ $deleted_term = get_term( $term, $taxonomy );
- foreach ( (array) $objects as $object ) {
- $terms = wp_get_object_terms($object, $taxonomy, array('fields' => 'ids', 'orderby' => 'none'));
+ $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 ) {
+ $terms = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids', 'orderby' => 'none' ) );
if ( 1 == count($terms) && isset($default) ) {
$terms = array($default);
} else {
$terms = array_merge($terms, array($default));
}
$terms = array_map('intval', $terms);
- wp_set_object_terms($object, $terms, $taxonomy);
+ wp_set_object_terms( $object_id, $terms, $taxonomy );
}
- // Clean the relationship caches for all object types using this term
+ // 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( $objects, $object_type );
+ clean_object_term_cache( $object_ids, $object_type );
- // Get the object before deletion so we can pass to actions below
- $deleted_term = get_term( $term, $taxonomy );
+ $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', $mid );
+ }
/**
* Fires immediately before a term taxonomy ID is deleted.
* Fires after a term is deleted from the database and the cache is cleaned.
*
* @since 2.5.0
+ * @since 4.5.0 Introduced the `$object_ids` argument.
*
* @param int $term Term ID.
* @param int $tt_id Term taxonomy ID.
* @param string $taxonomy Taxonomy slug.
* @param mixed $deleted_term Copy of the already-deleted term, in the form specified
* by the parent function. WP_Error otherwise.
+ * @param array $object_ids List of term object IDs.
*/
- do_action( 'delete_term', $term, $tt_id, $taxonomy, $deleted_term );
+ do_action( 'delete_term', $term, $tt_id, $taxonomy, $deleted_term, $object_ids );
/**
* Fires after a term in a specific taxonomy is deleted.
* taxonomy the term belonged to.
*
* @since 2.3.0
+ * @since 4.5.0 Introduced the `$object_ids` argument.
*
* @param int $term Term ID.
* @param int $tt_id Term taxonomy ID.
* @param mixed $deleted_term Copy of the already-deleted term, in the form specified
- * by the parent function. {@see WP_Error} otherwise.
+ * by the parent function. WP_Error otherwise.
+ * @param array $object_ids List of term object IDs.
*/
- do_action( "delete_$taxonomy", $term, $tt_id, $deleted_term );
+ do_action( "delete_$taxonomy", $term, $tt_id, $deleted_term, $object_ids );
return true;
}
* @since 2.0.0
*
* @param int $cat_ID
- * @return mixed Returns true if completes delete action; false if term doesn't exist;
+ * @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 ) {
/**
* Retrieves the terms associated with the given object(s), in the supplied taxonomies.
*
- * The following information has to do the $args parameter and for what can be
- * contained in the string or array of that parameter, if it exists.
- *
- * The first argument is called, 'orderby' and has the default value of 'name'.
- * The other value that is supported is 'count'.
- *
- * The second argument is called, 'order' and has the default value of 'ASC'.
- * The only other value that will be acceptable is 'DESC'.
- *
- * The final argument supported is called, 'fields' and has the default value of
- * 'all'. There are multiple other options that can be used instead. Supported
- * values are as follows: 'all', 'ids', 'names', and finally
- * 'all_with_object_id'.
- *
- * The fields argument also decides what will be returned. If 'all' or
- * 'all_with_object_id' is chosen or the default kept intact, then all matching
- * terms objects will be returned. If either 'ids' or 'names' is used, then an
- * array of all matching term ids or term names will be returned respectively.
- *
* @since 2.3.0
+ * @since 4.2.0 Added support for 'taxonomy', 'parent', and 'term_taxonomy_id' values of `$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.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param int|array $object_ids The ID(s) of the object(s) to retrieve.
+ * @param int|array $object_ids The ID(s) of the object(s) to retrieve.
* @param string|array $taxonomies The taxonomies to retrieve terms from.
- * @param array|string $args Change what is returned
- * @return array|WP_Error The requested term data or empty array if no terms found. WP_Error if any of the $taxonomies don't exist.
+ * @param array|string $args {
+ * Array of arguments.
+ * @type string $orderby Field by which results should be sorted. Accepts 'name', 'count', 'slug',
+ * 'term_group', 'term_order', 'taxonomy', 'parent', or 'term_taxonomy_id'.
+ * Default 'name'.
+ * @type string $order Sort order. Accepts 'ASC' or 'DESC'. Default 'ASC'.
+ * @type string $fields Fields to return for matched terms. Accepts 'all', 'ids', 'names', and
+ * 'all_with_object_id'. Note that 'all' or 'all_with_object_id' will result
+ * in an array of term objects being returned, 'ids' will return an array of
+ * integers, and 'names' an array of strings.
+ * @type int $parent Optional. Limit results to the direct children of a given term ID.
+ * @type bool $update_term_meta_cache Whether to prime termmeta cache for matched terms. Only applies when
+ * `$fields` is 'all', 'all_with_object_id', or 'term_id'. Default true.
+ * @type array $meta_query Meta query clauses to limit retrieved terms by. See `WP_Meta_Query`.
+ * Default empty.
+ * }
+ * @return array|WP_Error The requested term data or empty array if no terms found.
+ * WP_Error if any of the $taxonomies don't exist.
*/
function wp_get_object_terms($object_ids, $taxonomies, $args = array()) {
global $wpdb;
$object_ids = array($object_ids);
$object_ids = array_map('intval', $object_ids);
- $defaults = array('orderby' => 'name', 'order' => 'ASC', 'fields' => 'all');
+ $defaults = array(
+ 'orderby' => 'name',
+ 'order' => 'ASC',
+ 'fields' => 'all',
+ 'parent' => '',
+ 'update_term_meta_cache' => true,
+ 'meta_query' => '',
+ );
$args = wp_parse_args( $args, $defaults );
$terms = array();
$order = $args['order'];
$fields = $args['fields'];
- if ( 'count' == $orderby )
- $orderby = 'tt.count';
- else if ( 'name' == $orderby )
- $orderby = 't.name';
- else if ( 'slug' == $orderby )
- $orderby = 't.slug';
- else if ( 'term_group' == $orderby )
- $orderby = 't.term_group';
- else if ( 'term_order' == $orderby )
+ if ( in_array( $orderby, array( 'term_id', 'name', 'slug', 'term_group' ) ) ) {
+ $orderby = "t.$orderby";
+ } elseif ( in_array( $orderby, array( 'count', 'parent', 'taxonomy', 'term_taxonomy_id' ) ) ) {
+ $orderby = "tt.$orderby";
+ } elseif ( 'term_order' === $orderby ) {
$orderby = 'tr.term_order';
- else if ( 'none' == $orderby ) {
+ } elseif ( 'none' === $orderby ) {
$orderby = '';
$order = '';
} else {
if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ) ) )
$order = 'ASC';
- $taxonomies = "'" . implode("', '", $taxonomies) . "'";
+ $taxonomy_array = $taxonomies;
+ $object_id_array = $object_ids;
+ $taxonomies = "'" . implode("', '", array_map( 'esc_sql', $taxonomies ) ) . "'";
$object_ids = implode(', ', $object_ids);
$select_this = '';
- if ( 'all' == $fields )
+ if ( 'all' == $fields ) {
$select_this = 't.*, tt.*';
- else if ( 'ids' == $fields )
+ } elseif ( 'ids' == $fields ) {
$select_this = 't.term_id';
- else if ( 'names' == $fields )
+ } elseif ( 'names' == $fields ) {
$select_this = 't.name';
- else if ( 'slugs' == $fields )
+ } elseif ( 'slugs' == $fields ) {
$select_this = 't.slug';
- else if ( 'all_with_object_id' == $fields )
+ } elseif ( 'all_with_object_id' == $fields ) {
$select_this = 't.*, tt.*, tr.object_id';
+ }
+
+ $where = array(
+ "tt.taxonomy IN ($taxonomies)",
+ "tr.object_id IN ($object_ids)",
+ );
+
+ if ( '' !== $args['parent'] ) {
+ $where[] = $wpdb->prepare( 'tt.parent = %d', $args['parent'] );
+ }
+
+ // Meta query support.
+ $meta_query_join = '';
+ if ( ! empty( $args['meta_query'] ) ) {
+ $mquery = new WP_Meta_Query( $args['meta_query'] );
+ $mq_sql = $mquery->get_sql( 'term', 't', 'term_id' );
+
+ $meta_query_join .= $mq_sql['join'];
+
+ // Strip leading AND.
+ $where[] = preg_replace( '/^\s*AND/', '', $mq_sql['where'] );
+ }
+
+ $where = implode( ' AND ', $where );
- $query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tr.object_id IN ($object_ids) $orderby $order";
+ $query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id $meta_query_join WHERE $where $orderby $order";
$objects = false;
if ( 'all' == $fields || 'all_with_object_id' == $fields ) {
$_terms = $wpdb->get_results( $query );
+ $object_id_index = array();
foreach ( $_terms as $key => $term ) {
- $_terms[$key] = sanitize_term( $term, $taxonomy, 'raw' );
+ $term = sanitize_term( $term, $taxonomy, 'raw' );
+ $_terms[ $key ] = $term;
+
+ if ( isset( $term->object_id ) ) {
+ $object_id_index[ $key ] = $term->object_id;
+ }
+ }
+
+ update_term_cache( $_terms );
+ $_terms = array_map( 'get_term', $_terms );
+
+ // Re-add the object_id data, which is lost when fetching terms from cache.
+ if ( 'all_with_object_id' === $fields ) {
+ foreach ( $_terms as $key => $_term ) {
+ if ( isset( $object_id_index[ $key ] ) ) {
+ $_term->object_id = $object_id_index[ $key ];
+ }
+ }
}
+
$terms = array_merge( $terms, $_terms );
- update_term_cache( $terms );
$objects = true;
- } else if ( 'ids' == $fields || 'names' == $fields || 'slugs' == $fields ) {
+
+ } elseif ( 'ids' == $fields || 'names' == $fields || 'slugs' == $fields ) {
$_terms = $wpdb->get_col( $query );
$_field = ( 'ids' == $fields ) ? 'term_id' : 'name';
foreach ( $_terms as $key => $term ) {
$_terms[$key] = sanitize_term_field( $_field, $term, $term, $taxonomy, 'raw' );
}
$terms = array_merge( $terms, $_terms );
- } else if ( 'tt_ids' == $fields ) {
+ } elseif ( 'tt_ids' == $fields ) {
$terms = $wpdb->get_col("SELECT tr.term_taxonomy_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tr.object_id IN ($object_ids) AND tt.taxonomy IN ($taxonomies) $orderby $order");
foreach ( $terms as $key => $tt_id ) {
$terms[$key] = sanitize_term_field( 'term_taxonomy_id', $tt_id, 0, $taxonomy, 'raw' ); // 0 should be the term id, however is not needed when using raw context.
}
}
+ // Update termmeta cache, if necessary.
+ if ( $args['update_term_meta_cache'] && ( 'all' === $fields || 'all_with_object_ids' === $fields || 'term_id' === $fields ) ) {
+ if ( 'term_id' === $fields ) {
+ $term_ids = $fields;
+ } else {
+ $term_ids = wp_list_pluck( $terms, 'term_id' );
+ }
+
+ update_termmeta_cache( $term_ids );
+ }
+
if ( ! $terms ) {
$terms = array();
} elseif ( $objects && 'all_with_object_id' !== $fields ) {
} elseif ( ! $objects ) {
$terms = array_values( array_unique( $terms ) );
}
+
/**
* Filter the terms for a given object or objects.
*
+ * @since 4.2.0
+ *
+ * @param array $terms An array of terms for the given object or objects.
+ * @param array $object_id_array Array of object IDs for which `$terms` were retrieved.
+ * @param array $taxonomy_array Array of taxonomies from which `$terms` were retrieved.
+ * @param array $args An 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_id_array, $taxonomy_array, $args );
+
+ /**
+ * Filter the terms for a given object or objects.
+ *
+ * The `$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 array $terms An array of terms for the given object or objects.
- * @param array|int $object_ids Object ID or array of IDs.
- * @param array|string $taxonomies A taxonomy or array of taxonomies.
- * @param array $args An array of arguments for retrieving terms for
- * the given object(s).
+ * @param array $terms An array of terms for the given object or objects.
+ * @param int|array $object_ids Object ID or array of IDs.
+ * @param string $taxonomies SQL-formatted (comma-separated and quoted) list of taxonomy names.
+ * @param array $args An array of arguments for retrieving terms for the given object(s).
+ * See {@see wp_get_object_terms()} for details.
*/
return apply_filters( 'wp_get_object_terms', $terms, $object_ids, $taxonomies, $args );
}
*
* 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.
* 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 to add or update.
if ( $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)
$slug_provided = ! empty( $args['slug'] );
if ( ! $slug_provided ) {
- $_name = trim( $name );
- $existing_term = get_term_by( 'name', $_name, $taxonomy );
- if ( $existing_term ) {
- $slug = $existing_term->slug;
- } else {
- $slug = sanitize_title( $name );
- }
+ $slug = sanitize_title( $name );
} else {
$slug = $args['slug'];
}
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;
- } else if ( ! empty( $alias->term_id ) ) {
+ } elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
}
}
- // Terms with duplicate names are not allowed at the same level of a taxonomy hierarchy.
- if ( $exists = term_exists( $slug, $taxonomy ) ) {
- $existing_term = get_term( $exists['term_id'], $taxonomy );
+ /*
+ * 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( $taxonomy, array(
+ 'name' => $name,
+ 'hide_empty' => false,
+ ) );
- if ( $name === $existing_term->name ) {
+ /*
+ * 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( $taxonomy, array( 'fields' => 'names', 'get' => 'all', 'parent' => $parent ) );
- if ( in_array( $name, $siblings ) ) {
- return new WP_Error( 'term_exists', __( 'A term with the name and slug already exists with this parent.' ), $exists['term_id'] );
+ $siblings = get_terms( $taxonomy, array( 'get' => 'all', 'parent' => $parent ) );
+
+ $existing_term = null;
+ if ( $name_match->slug === $slug && in_array( $name, wp_list_pluck( $siblings, 'name' ) ) ) {
+ $existing_term = $name_match;
+ } elseif ( $slug_match && in_array( $slug, wp_list_pluck( $siblings, 'slug' ) ) ) {
+ $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 and slug already exists in this taxonomy.' ), $exists['term_id'] );
+ return new WP_Error( 'term_exists', __( 'A term with the name provided already exists in this taxonomy.' ), $name_match->term_id );
}
}
}
* Fires after a new term is created, and after the term cache has been cleaned.
*
* @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ * @param string $taxonomy Taxonomy slug.
*/
- do_action( "created_term", $term_id, $tt_id, $taxonomy );
+ do_action( 'created_term', $term_id, $tt_id, $taxonomy );
/**
* Fires after a new term in a specific taxonomy is created, and after the term
* cache has been cleaned.
*
+ * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
+ *
* @since 2.3.0
*
* @param int $term_id Term ID.
*
* @since 2.3.0
*
+ * @global wpdb $wpdb The WordPress database abstraction object.
+ *
* @param int $object_id The object to relate to.
* @param array|int|string $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.
- * @param array|string $taxonomy The context in which to relate the term to the object.
+ * @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 Affected Term IDs.
+ * @return array|WP_Error Term taxonomy IDs of the affected terms.
*/
function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) {
global $wpdb;
*
* @since 3.6.0
*
- * @param int $object_id The ID of the object to which the terms will be added.
- * @param array|int|string $terms The slug(s) or ID(s) of the term(s) to add.
- * @param array|string $taxonomy Taxonomy name.
- * @return array|WP_Error Affected Term IDs
+ * @param int $object_id The ID of the object to which the terms will be added.
+ * @param array|int|string $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 );
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param int $object_id The ID of the object from which the terms will be removed.
- * @param array|int|string $terms The slug(s) or ID(s) of the term(s) to remove.
- * @param array|string $taxonomy Taxonomy name.
+ * @param int $object_id The ID of the object from which the terms will be removed.
+ * @param array|int|string $terms The slug(s) or ID(s) of the term(s) to remove.
+ * @param array|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 ) {
$object_id = (int) $object_id;
if ( ! taxonomy_exists( $taxonomy ) ) {
- return new WP_Error( 'invalid_taxonomy', __( 'Invalid Taxonomy' ) );
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
}
if ( ! is_array( $terms ) ) {
do_action( 'delete_term_relationships', $object_id, $tt_ids );
$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' );
+
/**
* Fires immediately after an object-term relationship is deleted.
*
* @param array $tt_ids An array of term taxonomy IDs.
*/
do_action( 'deleted_term_relationships', $object_id, $tt_ids );
+
wp_update_term_count( $tt_ids, $taxonomy );
return (bool) $deleted;
/**
* Will make slug unique, if it isn't already.
*
- * The $slug has to be unique global to every taxonomy, meaning that one
+ * The `$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.
*
* If that still doesn't return an unique slug, then it try to append a number
* until it finds a number that is truly unique.
*
- * The only purpose for $term is for appending a parent, if one exists.
+ * The only purpose for `$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 too
+ * @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) {
+function wp_unique_term_slug( $slug, $term ) {
global $wpdb;
- if ( ! term_exists( $slug ) )
- return $slug;
+ $needs_suffix = true;
+ $original_slug = $slug;
// As of 4.1, duplicate slugs are allowed as long as they're in different taxonomies.
- if ( get_option( 'db_version' ) >= 30133 && ! get_term_by( 'slug', $slug, $term->taxonomy ) ) {
- return $slug;
+ if ( ! term_exists( $slug ) || get_option( 'db_version' ) >= 30133 && ! get_term_by( 'slug', $slug, $term->taxonomy ) ) {
+ $needs_suffix = false;
}
- // If the taxonomy supports hierarchy and the term has a parent, make the slug unique
- // by incorporating parent slugs.
- if ( is_taxonomy_hierarchical($term->taxonomy) && !empty($term->parent) ) {
+ /*
+ * 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;
- $slug .= '-' . $parent_term->slug;
- if ( ! term_exists( $slug ) )
- return $slug;
+ $parent_suffix .= '-' . $parent_term->slug;
+ if ( ! term_exists( $slug . $parent_suffix ) ) {
+ break;
+ }
if ( empty($parent_term->parent) )
break;
}
// If we didn't get a unique slug, try appending a number to make it unique.
- 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 ) ) {
- $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;
+ /**
+ * Filter 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;
+ } else {
+ 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 ) ) {
+ $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;
+ }
+ }
}
- return $slug;
+ /**
+ * Filter 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 );
}
/**
* a WP_Error will be passed back. If you don't pass any slug, then a unique one
* will be created for you.
*
- * For what can be overrode in $args, check the term scheme can contain and stay
+ * For what can be overrode in `$args`, check the term scheme can contain and stay
* away from the term keys.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param int $term_id The ID of the term
- * @param string $taxonomy The context in which to relate the term to the object.
- * @param array|string $args Overwrite term field values
+ * @param int $term_id The ID of the term
+ * @param string $taxonomy The context in which to relate the term to the object.
+ * @param array|string $args Optional. Array of get_terms() arguments. Default empty array.
* @return array|WP_Error Returns Term ID and Taxonomy Term ID
*/
function wp_update_term( $term_id, $taxonomy, $args = array() ) {
global $wpdb;
- if ( ! taxonomy_exists($taxonomy) )
- return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
+ 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, ARRAY_A);
+ $term = get_term( $term_id, $taxonomy );
- if ( is_wp_error( $term ) )
+ 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);
+ $term = wp_slash( $term );
// Merge old and new args with new args overwriting old ones.
$args = array_merge($term, $args);
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;
- } else if ( ! empty( $alias->term_id ) ) {
+ } elseif ( ! empty( $alias->term_id ) ) {
/*
* The alias is not in a group, so we create a new one
* and add the alias to it.
$parent = apply_filters( 'wp_update_term_parent', $args['parent'], $term_id, $taxonomy, $parsed_args, $args );
// Check for duplicate slug
- $id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE slug = %s", $slug ) );
- if ( $id && ($id != $term_id) ) {
+ $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 != $term['parent']) )
return new WP_Error('duplicate_term_slug', sprintf(__('The slug “%s” is already in use by another term'), $slug));
}
- $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) );
+ $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.
* @param string $taxonomy Taxonomy slug.
*/
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy );
+
$wpdb->update( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ), array( 'term_taxonomy_id' => $tt_id ) );
/**
*/
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy );
- // Clean the relationship caches for all object types using this term
+ // Clean the relationship caches for all object types using this term.
$objects = $wpdb->get_col( $wpdb->prepare( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $tt_id ) );
$tax_object = get_taxonomy( $taxonomy );
foreach ( $tax_object->object_type as $object_type ) {
*
* @since 2.5.0
*
+ * @staticvar bool $_defer
+ *
* @param bool $defer Optional. Enable if true, disable if false.
* @return bool Whether term counting is enabled or disabled.
*/
*
* @since 2.3.0
*
- * @global wpdb $wpdb WordPress database abstraction object.
+ * @staticvar array $_deferred
*
- * @param int|array $terms The term_taxonomy_id of the terms
- * @param string $taxonomy The context of the term.
+ * @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 ) {
+function wp_update_term_count( $terms, $taxonomy, $do_deferred = false ) {
static $_deferred = array();
if ( $do_deferred ) {
*
* @since 2.5.0
*
- * @param array $terms The term_taxonomy_id of terms to update.
+ * @param array $terms The term_taxonomy_id of terms to update.
* @param string $taxonomy The context of the term.
- * @return bool Always true when complete.
+ * @return true Always true when complete.
*/
function wp_update_term_count_now( $terms, $taxonomy ) {
$terms = array_map('intval', $terms);
/**
* 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 $object_type for the deletion to
+ * Will remove the entire taxonomy relationship containing term `$object_id`. The
+ * term IDs have to exist within the taxonomy `$object_type` for the deletion to
* take place.
*
* @since 2.3.0
*
- * @see get_object_taxonomies() for more on $object_type
+ * @global bool $_wp_suspend_cache_invalidation
*
- * @param int|array $object_ids Single or list of term object ID(s)
- * @param array|string $object_type The taxonomy object type
+ * @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);
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
+ * @global bool $_wp_suspend_cache_invalidation
*
- * @param int|array $ids Single or list of Term IDs
- * @param string $taxonomy Can be empty and will assume tt_ids, else will use for context.
- * @param bool $clean_taxonomy Whether to clean taxonomy wide caches (true), or just individual term object caches (false). Default is true.
+ * @param int|array $ids Single or list of Term IDs.
+ * @param string $taxonomy Optional. Can be empty and will assume `tt_ids`, else will use for context.
+ * 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;
+ global $wpdb, $_wp_suspend_cache_invalidation;
+
+ if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
+ return;
+ }
if ( !is_array($ids) )
$ids = array($ids);
foreach ( (array) $terms as $term ) {
$taxonomies[] = $term->taxonomy;
$ids[] = $term->term_id;
- wp_cache_delete($term->term_id, $term->taxonomy);
+ wp_cache_delete( $term->term_id, 'terms' );
}
$taxonomies = array_unique($taxonomies);
} else {
$taxonomies = array($taxonomy);
foreach ( $taxonomies as $taxonomy ) {
foreach ( $ids as $id ) {
- wp_cache_delete($id, $taxonomy);
+ wp_cache_delete( $id, 'terms' );
}
}
}
* Fires once after each taxonomy's term cache has been cleaned.
*
* @since 2.5.0
+ * @since 4.5.0 Added the `$clean_taxonomy` parameter.
*
- * @param array $ids An array of term IDs.
- * @param string $taxonomy Taxonomy slug.
+ * @param 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 );
+ do_action( 'clean_term_cache', $ids, $taxonomy, $clean_taxonomy );
}
wp_cache_set( 'last_changed', microtime(), 'terms' );
*
* @since 2.3.0
*
- * @param int|array $id Term object ID
- * @param string $taxonomy Taxonomy Name
- * @return bool|array Empty array if $terms found, but not $taxonomy. False if nothing is in cache for $taxonomy and $id.
+ * @param int $id Term object ID.
+ * @param string $taxonomy Taxonomy name.
+ * @return bool|mixed Empty array if $terms found, but not `$taxonomy`. False if nothing is in cache
+ * for `$taxonomy` and `$id`.
*/
-function get_object_term_cache($id, $taxonomy) {
- $cache = wp_cache_get($id, "{$taxonomy}_relationships");
- return $cache;
+function get_object_term_cache( $id, $taxonomy ) {
+ return wp_cache_get( $id, "{$taxonomy}_relationships" );
}
/**
- * Updates the cache for Term ID(s).
+ * Updates the cache for the given term object ID(s).
*
- * Will only update the cache for terms not already cached.
+ * 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.
*
- * The $object_ids expects that the ids be separated by commas, if it is a
- * string.
- *
- * It should be noted that update_object_term_cache() is very time extensive. It
- * is advised that the function is not called very often or at least not for a
- * lot of terms that exist in a lot of taxonomies. The amount of time increases
- * for each term and it also increases for each taxonomy the term belongs to.
+ * Caches will only be updated for terms not already cached.
*
* @since 2.3.0
*
- * @param string|array $object_ids Single or list of term object ID(s)
- * @param array|string $object_type The taxonomy object type
- * @return null|false Null value is given with empty $object_ids. False if
+ * @param string|array $object_ids Comma-separated list or array of term object IDs.
+ * @param array|string $object_type The taxonomy object type.
+ * @return void|false False if all of the terms in `$object_ids` are already cached.
*/
function update_object_term_cache($object_ids, $object_type) {
if ( empty($object_ids) )
if ( empty( $ids ) )
return false;
- $terms = wp_get_object_terms($ids, $taxonomies, array('fields' => 'all_with_object_id'));
+ $terms = wp_get_object_terms( $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] = $term;
+ $object_terms[$term->object_id][$term->taxonomy][] = $term;
foreach ( $ids as $id ) {
foreach ( $taxonomies as $taxonomy ) {
*
* @since 2.3.0
*
- * @param array $terms List of Term objects to change
- * @param string $taxonomy Optional. Update Term to this taxonomy in cache
+ * @param array $terms List of term objects to change.
+ * @param string $taxonomy Optional. Update Term to this taxonomy in cache. Default empty.
*/
-function update_term_cache($terms, $taxonomy = '') {
+function update_term_cache( $terms, $taxonomy = '' ) {
foreach ( (array) $terms as $term ) {
- $term_taxonomy = $taxonomy;
- if ( empty($term_taxonomy) )
- $term_taxonomy = $term->taxonomy;
+ // Create a copy in case the array was passed by reference.
+ $_term = clone $term;
- wp_cache_add( $term->term_id, $term, $term_taxonomy );
+ // Object ID should not be cached.
+ unset( $_term->object_id );
+
+ wp_cache_add( $term->term_id, $_term, 'terms' );
}
}
/**
* Retrieves children of taxonomy as Term IDs.
*
- * @access private
+ * @ignore
* @since 2.3.0
*
- * @param string $taxonomy Taxonomy Name
+ * @param string $taxonomy Taxonomy name.
* @return array Empty if $taxonomy isn't hierarchical or returns children as Term IDs.
*/
-function _get_term_hierarchy($taxonomy) {
+function _get_term_hierarchy( $taxonomy ) {
if ( !is_taxonomy_hierarchical($taxonomy) )
return array();
$children = get_option("{$taxonomy}_children");
/**
* Get 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 $terms is an array of IDs, then _get_term_children returns an array of IDs.
+ * If `$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.
- * @return array The subset of $terms that are descendants of $term_id.
+ * @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) {
+function _get_term_children( $term_id, $terms, $taxonomy, &$ancestors = array() ) {
$empty_array = array();
if ( empty($terms) )
return $empty_array;
if ( ( 0 != $term_id ) && ! isset($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) ) {
$use_id = true;
}
- if ( $term->term_id == $term_id ) {
+ // Don't recurse if we've already identified the term as a child - this indicates a loop.
+ if ( isset( $ancestors[ $term->term_id ] ) ) {
continue;
}
if ( !isset($has_children[$term->term_id]) )
continue;
- if ( $children = _get_term_children($term->term_id, $terms, $taxonomy) )
+ $ancestors[ $term->term_id ] = 1;
+
+ if ( $children = _get_term_children( $term->term_id, $terms, $taxonomy, $ancestors) )
$term_list = array_merge($term_list, $children);
}
}
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param array $terms List of Term IDs
- * @param string $taxonomy Term Context
- * @return null Will break from function if conditions are not met.
+ * @param array $terms List of term objects, passed by reference.
+ * @param string $taxonomy Term context.
*/
-function _pad_term_counts(&$terms, $taxonomy) {
+function _pad_term_counts( &$terms, $taxonomy ) {
global $wpdb;
// This function only works for hierarchical taxonomies like post categories.
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
+ // 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'");
$term_items[$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
+ // 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 ) ) {
+ break;
+ }
}
}
- // Transfer the touched cells
+ // Transfer the touched cells.
foreach ( (array) $term_items as $id => $items )
if ( isset($terms_by_id[$id]) )
$terms_by_id[$id]->count = count($items);
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param array $terms List of Term taxonomy IDs
- * @param object $taxonomy Current taxonomy object of terms
+ * @param array $terms List of Term taxonomy IDs.
+ * @param object $taxonomy Current taxonomy object of terms.
*/
function _update_post_term_count( $terms, $taxonomy ) {
global $wpdb;
foreach ( (array) $terms as $term ) {
$count = 0;
- // Attachments can be 'inherit' status, we need to base count off the parent's status if so
+ // Attachments can be 'inherit' status, we need to base count off the parent's status if so.
if ( $check_attachments )
$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 = 'publish' OR ( post_status = 'inherit' AND post_parent > 0 AND ( SELECT post_status FROM $wpdb->posts WHERE ID = p1.post_parent ) = 'publish' ) ) AND post_type = 'attachment' AND term_taxonomy_id = %d", $term ) );
$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 = 'publish' AND post_type IN ('" . implode("', '", $object_types ) . "') AND term_taxonomy_id = %d", $term ) );
/** This action is documented in wp-includes/taxonomy.php */
- do_action( 'edit_term_taxonomy', $term, $taxonomy );
+ 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 );
+ do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
/**
* Will update term count based on number of objects.
*
- * Default callback for the link_category taxonomy.
+ * Default callback for the 'link_category' taxonomy.
*
* @since 3.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param array $terms List of Term taxonomy IDs
- * @param object $taxonomy Current taxonomy object of terms
+ * @param array $terms List of term taxonomy IDs.
+ * @param object $taxonomy Current taxonomy object of terms.
*/
function _update_generic_term_count( $terms, $taxonomy ) {
global $wpdb;
$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( 'edit_term_taxonomy', $term, $taxonomy );
+ 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 );
+ do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
+ }
+}
+
+/**
+ * Create a new term for a term_taxonomy item that currently shares its term
+ * with another term_taxonomy.
+ *
+ * @ignore
+ * @since 4.2.0
+ * @since 4.3.0 Introduced `$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 = intval( $shared_term->term_id );
+ }
+
+ if ( is_object( $term_taxonomy_id ) ) {
+ $term_taxonomy = $term_taxonomy_id;
+ $term_taxonomy_id = intval( $term_taxonomy->term_taxonomy_id );
+ }
+
+ // If there are no shared term_taxonomy rows, there's nothing to do here.
+ $shared_tt_count = $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 = $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( $term_id, $term_taxonomy->taxonomy );
+ }
+ } 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 );
+ }
+
+ // Clean the cache for term taxonomies formerly shared with the current term.
+ $shared_term_taxonomies = $wpdb->get_row( $wpdb->prepare( "SELECT taxonomy FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
+ if ( $shared_term_taxonomies ) {
+ foreach ( $shared_term_taxonomies as $shared_term_taxonomy ) {
+ clean_term_cache( $term_id, $shared_term_taxonomy );
+ }
+ }
+
+ // Keep a record of term_ids that have been split, keyed by old term_id. See {@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, 'no') /* 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 = intval( $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 = $taxonomies = array();
+ foreach ( $shared_tts as $shared_tt ) {
+ $term_id = intval( $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,
+ * check 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' );
+ }
+}
+
+/**
+ * Check 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 ( $term_id == get_option( $option, -1 ) ) {
+ update_option( $option, $new_term_id );
+ }
+ }
+}
+
+/**
+ * Check 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, change 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 );
+}
+
+/**
+ * Get 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;
+}
+
+/**
+ * Get 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;
+}
+
+/**
+ * Determine 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
+ *
+ * @param int $term_id
+ * @return bool
+ */
+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;
}
/**
*
* @since 2.5.0
*
+ * @global WP_Rewrite $wp_rewrite
+ *
* @param object|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 HTML link to taxonomy term archive on success, WP_Error if term does not exist.
*/
-function get_term_link( $term, $taxonomy = '') {
+function get_term_link( $term, $taxonomy = '' ) {
global $wp_rewrite;
if ( !is_object($term) ) {
- if ( is_int($term) ) {
- $term = get_term($term, $taxonomy);
+ if ( is_int( $term ) ) {
+ $term = get_term( $term, $taxonomy );
} else {
- $term = get_term_by('slug', $term, $taxonomy);
+ $term = get_term_by( 'slug', $term, $taxonomy );
}
}
* @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
- * {@link get_the_taxonomies()}, in addition to the following.
+ * 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.
* }
- * @param array $args See {@link get_the_taxonomies()} for a description of arguments and their defaults.
*/
function the_taxonomies( $args = array() ) {
$defaults = array(
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @param array $args {
- * Arguments about how to format the list of taxonomies.
+ * 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."
*
* @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|array $terms Optional. Term term_id, name, slug or array of said
- * @return bool|WP_Error. WP_Error on input error.
+ * @param int $object_id ID of the object (post ID, link ID, ...).
+ * @param string $taxonomy Single taxonomy name.
+ * @param int|string|array $terms Optional. Term term_id, name, slug or array of said. Default null.
+ * @return bool|WP_Error WP_Error on input error.
*/
function is_object_in_term( $object_id, $taxonomy, $terms = null ) {
if ( !$object_id = (int) $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 );
+ if ( false === $object_terms ) {
+ $object_terms = wp_get_object_terms( $object_id, $taxonomy, array( 'update_term_meta_cache' => false ) );
+ wp_cache_set( $object_id, $object_terms, "{$taxonomy}_relationships" );
+ }
if ( is_wp_error( $object_terms ) )
return $object_terms;
*
* @since 3.0.0
*
- * @param string $object_type Object type string
- * @param string $taxonomy Single taxonomy name
+ * @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) )
+function is_object_in_taxonomy( $object_type, $taxonomy ) {
+ $taxonomies = get_object_taxonomies( $object_type );
+ if ( empty( $taxonomies ) ) {
return false;
-
- if ( in_array($taxonomy, $taxonomies) )
- return true;
-
- return false;
+ }
+ return in_array( $taxonomy, $taxonomies );
}
/**
if ( ! $resource_type ) {
if ( is_taxonomy_hierarchical( $object_type ) ) {
$resource_type = 'taxonomy';
- } else if ( post_type_exists( $object_type ) ) {
+ } elseif ( post_type_exists( $object_type ) ) {
$resource_type = 'post_type';
}
}
* Filter a given object's ancestors.
*
* @since 3.1.0
+ * @since 4.1.1 Introduced the `$resource_type` parameter.
*
* @param array $ancestors An array 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 );
+ return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
}
/**
- * Returns the term's parent's term_ID
+ * Returns the term's parent's term_ID.
*
* @since 3.1.0
*
- * @param int $term_id
- * @param string $taxonomy
- *
- * @return int|bool false on error
+ * @param int $term_id Term ID.
+ * @param string $taxonomy Taxonomy name.
+ * @return int|false False on error.
*/
function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) {
$term = get_term( $term_id, $taxonomy );
- if ( !$term || is_wp_error( $term ) )
+ 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 wp_update_term_parent filter.
+ * Attached to the {@see 'wp_update_term_parent'} filter.
*
* @since 3.1.0
*
- * @param int $parent term_id of the parent for the term we're checking.
- * @param int $term_id The term we're checking.
+ * @param int $parent `term_id` of the parent for the term we're checking.
+ * @param int $term_id The term we're checking.
* @param string $taxonomy The taxonomy of the term we're checking.
*
* @return int The new parent for the term.
if ( !$parent )
return 0;
- // Can't be its own parent
+ // Can't be its own parent.
if ( $parent == $term_id )
return 0;
- // Now look for larger loops
-
+ // Now look for larger loops.
if ( !$loop = wp_find_hierarchy_loop( 'wp_get_term_taxonomy_parent_id', $term_id, $parent, array( $taxonomy ) ) )
return $parent; // No loop
- // Setting $parent to the given value causes a loop
+ // Setting $parent to the given value causes a loop.
if ( isset( $loop[$term_id] ) )
return 0;
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff