if ( ! did_action( 'init' ) ) {
$rewrite = array( 'category' => false, 'post_tag' => false, 'post_format' => false );
} else {
+
+ /**
+ * Filter the post formats rewrite base.
+ *
+ * @since 3.1.0
+ *
+ * @param string $context Context of the rewrite base. Default 'type'.
+ */
$post_format_base = apply_filters( 'post_format_rewrite_base', 'type' );
$rewrite = array(
'category' => array(
'ep_mask' => EP_CATEGORIES,
),
'post_tag' => array(
+ 'hierarchical' => false,
'slug' => get_option('tag_base') ? get_option('tag_base') : 'tag',
'with_front' => ! get_option('tag_base') || $wp_rewrite->using_index_permalinks(),
'ep_mask' => EP_TAGS,
'rewrite' => $rewrite['category'],
'public' => true,
'show_ui' => true,
+ 'show_admin_column' => true,
'_builtin' => true,
) );
'rewrite' => $rewrite['post_tag'],
'public' => true,
'show_ui' => true,
+ 'show_admin_column' => true,
'_builtin' => true,
) );
'add_or_remove_items' => null,
'choose_from_most_used' => null,
),
+ 'capabilities' => array(
+ 'manage_terms' => 'manage_links',
+ 'edit_terms' => 'manage_links',
+ 'delete_terms' => 'manage_links',
+ 'assign_terms' => 'manage_links',
+ ),
'query_var' => false,
'rewrite' => false,
'public' => false,
'show_in_nav_menus' => current_theme_supports( 'post-formats' ),
) );
}
-add_action( 'init', 'create_initial_taxonomies', 0 ); // highest priority
/**
* Get a list of registered taxonomy objects.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 3.0.0
* @uses $wp_taxonomies
- * @see register_taxonomy
*
* @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.
* It appears that this function can be used to find all of the names inside of
* $wp_taxonomies global variable.
*
- * <code><?php $taxonomies = get_object_taxonomies('post'); ?></code> Should
- * result in <code>Array('category', 'post_tag')</code>
+ * `<?php $taxonomies = get_object_taxonomies('post'); ?>` Should
+ * result in `Array( 'category', 'post_tag' )`
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
* @uses $wp_taxonomies
* The get_taxonomy function will first check that the parameter string given
* is a taxonomy object and if it is, it will return it.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
* @uses $wp_taxonomies
- * @uses taxonomy_exists() Checks whether taxonomy exists
*
* @param string $taxonomy Name of taxonomy object to return
* @return object|bool The Taxonomy Object or false if $taxonomy doesn't exist
*
* Formerly is_taxonomy(), introduced in 2.3.0.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 3.0.0
*
* @uses $wp_taxonomies
*
* A false return value might also mean that the taxonomy does not exist.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses taxonomy_exists() Checks whether taxonomy exists
- * @uses get_taxonomy() Used to get the taxonomy object
- *
* @param string $taxonomy Name of taxonomy object
* @return bool Whether the taxonomy is hierarchical
*/
*
* Optional $args contents:
*
- * label - Name of the taxonomy shown in the menu. Usually plural. If not set, labels['name'] will be used.
- *
- * hierarchical - has some defined purpose at other parts of the API and is a
- * boolean value.
- *
- * update_count_callback - works much like a hook, in that it will be called when the count is updated.
- * Defaults to _update_post_term_count() for taxonomies attached to post types, which then confirms
- * that the objects are published before counting them.
- * Defaults to _update_generic_term_count() for taxonomies attached to other object types, such as links.
- *
- * rewrite - false to prevent rewrite, or array('slug'=>$slug) to customize
- * permastruct; default will use $taxonomy as slug.
+ * - 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_in_quick_edit - Whether to show the taxonomy in the quick/bulk edit panel.
+ * * It 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 $taxonomy key
+ * * If false, a taxonomy cannot be loaded at ?{query_var}={term_slug}
+ * * If specified as a string, the query ?{query_var_string}={term_slug} will be valid.
+ * - update_count_callback - Works much like a hook, in that it will be called when the count is updated.
+ * * Defaults to _update_post_term_count() for taxonomies attached to post types, which then confirms
+ * that the objects are published before counting them.
+ * * Defaults to _update_generic_term_count() for taxonomies attached to other object types, such as links.
+ * - _builtin - true if this taxonomy is a native or "built-in" taxonomy. THIS IS FOR INTERNAL USE ONLY!
*
- * query_var - false to prevent queries, or string to customize query var
- * (?$query_var=$term); default will use $taxonomy as query var.
- *
- * public - If the taxonomy should be publicly queryable; //@TODO not implemented.
- * defaults to true.
- *
- * show_ui - If the WordPress UI admin tags UI should apply to this taxonomy;
- * defaults to public.
- *
- * show_in_nav_menus - true makes this taxonomy available for selection in navigation menus.
- * Defaults to public.
- *
- * show_tagcloud - false to prevent the taxonomy being listed in the Tag Cloud Widget;
- * defaults to show_ui which defaults to public.
- *
- * labels - An array of labels for this taxonomy. You can see accepted values in {@link get_taxonomy_labels()}. By default tag labels are used for non-hierarchical types and category labels for hierarchical ones.
- *
- * @package WordPress
- * @subpackage Taxonomy
* @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.
*
- * @param string $taxonomy Name of taxonomy object
+ * @global array $wp_taxonomies Registered taxonomies.
+ * @global WP $wp WP instance.
+ *
+ * @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 above description for the two keys values.
+ * @param array|string $args See optional args description above.
+ * @return null|WP_Error WP_Error if errors, otherwise null.
*/
function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
global $wp_taxonomies, $wp;
- if ( ! is_array($wp_taxonomies) )
+ if ( ! is_array( $wp_taxonomies ) )
$wp_taxonomies = array();
- $defaults = array( 'hierarchical' => false,
- 'update_count_callback' => '',
- 'rewrite' => true,
- 'query_var' => $taxonomy,
- 'public' => true,
- 'show_ui' => null,
- 'show_tagcloud' => null,
- '_builtin' => false,
- 'labels' => array(),
- 'capabilities' => array(),
- 'show_in_nav_menus' => null,
- );
- $args = wp_parse_args($args, $defaults);
+ $defaults = array(
+ 'labels' => array(),
+ 'description' => '',
+ 'public' => true,
+ '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(),
+ 'rewrite' => true,
+ 'query_var' => $taxonomy,
+ 'update_count_callback' => '',
+ '_builtin' => false,
+ );
+ $args = wp_parse_args( $args, $defaults );
+
+ 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 ( false !== $args['query_var'] && ! empty( $wp ) ) {
if ( true === $args['query_var'] )
$args['query_var'] = $taxonomy;
- $args['query_var'] = sanitize_title_with_dashes($args['query_var']);
- $wp->add_query_var($args['query_var']);
+ else
+ $args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
+ $wp->add_query_var( $args['query_var'] );
}
- if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option('permalink_structure') ) ) {
- $args['rewrite'] = wp_parse_args($args['rewrite'], array(
- 'slug' => sanitize_title_with_dashes($taxonomy),
+ if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
+ $args['rewrite'] = wp_parse_args( $args['rewrite'], array(
'with_front' => true,
'hierarchical' => false,
'ep_mask' => EP_NONE,
- ));
+ ) );
+
+ if ( empty( $args['rewrite']['slug'] ) )
+ $args['rewrite']['slug'] = sanitize_title_with_dashes( $taxonomy );
if ( $args['hierarchical'] && $args['rewrite']['hierarchical'] )
$tag = '(.+?)';
add_permastruct( $taxonomy, "{$args['rewrite']['slug']}/%$taxonomy%", $args['rewrite'] );
}
- if ( is_null($args['show_ui']) )
+ // If not set, default to the setting for public.
+ if ( null === $args['show_ui'] )
$args['show_ui'] = $args['public'];
- // Whether to show this type in nav-menus.php. Defaults to the setting for public.
+ // If not set, default to the setting for show_ui.
+ if ( null === $args['show_in_menu' ] || ! $args['show_ui'] )
+ $args['show_in_menu' ] = $args['show_ui'];
+
+ // If not set, default to the setting for public.
if ( null === $args['show_in_nav_menus'] )
$args['show_in_nav_menus'] = $args['public'];
- if ( is_null($args['show_tagcloud']) )
+ // If not set, default to the setting for show_ui.
+ 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',
unset( $args['capabilities'] );
$args['name'] = $taxonomy;
- $args['object_type'] = array_unique( (array)$object_type );
+ $args['object_type'] = array_unique( (array) $object_type );
$args['labels'] = get_taxonomy_labels( (object) $args );
$args['label'] = $args['labels']->name;
- $wp_taxonomies[$taxonomy] = (object) $args;
+ // If not set, use the default meta box
+ if ( null === $args['meta_box_cb'] ) {
+ if ( $args['hierarchical'] )
+ $args['meta_box_cb'] = 'post_categories_meta_box';
+ else
+ $args['meta_box_cb'] = 'post_tags_meta_box';
+ }
+
+ $wp_taxonomies[ $taxonomy ] = (object) $args;
// register callback handling for metabox
- add_filter('wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term');
+ add_filter( 'wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term' );
+ /**
+ * Fires after a taxonomy is registered.
+ *
+ * @since 3.3.0
+ *
+ * @param string $taxonomy Taxonomy slug.
+ * @param array|string $object_type Object type or array of object types.
+ * @param array $args Array of taxonomy registration arguments.
+ */
do_action( 'registered_taxonomy', $taxonomy, $object_type, $args );
}
* Builds an object with all taxonomy labels out of a taxonomy object
*
* Accepted keys of the label array in the taxonomy object:
+ *
* - name - general name for the taxonomy, usually plural. The same as and overridden by $tax->label. Default is Tags/Categories
* - singular_name - name for one object of this taxonomy. Default is Tag/Category
* - search_items - Default is Search Tags/Search Categories
* - popular_items - This string isn't used on hierarchical taxonomies. Default is Popular Tags
* - all_items - Default is All Tags/All Categories
* - parent_item - This string isn't used on non-hierarchical taxonomies. In hierarchical ones the default is Parent Category
- * - parent_item_colon - The same as <code>parent_item</code>, but with colon <code>:</code> in the end
+ * - parent_item_colon - The same as `parent_item`, but with colon `:` in the end
* - edit_item - Default is Edit Tag/Edit Category
* - view_item - Default is View Tag/View Category
* - update_item - Default is Update Tag/Update Category
* - 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 - Default is "No tags found"/"No categories found", used in the meta box and taxonomy list table.
*
* Above, the first default value is for non-hierarchical taxonomies (like tags) and the second one is for hierarchical taxonomies (like categories).
*
*/
function get_taxonomy_labels( $tax ) {
+ $tax->labels = (array) $tax->labels;
+
if ( isset( $tax->helps ) && empty( $tax->labels['separate_items_with_commas'] ) )
$tax->labels['separate_items_with_commas'] = $tax->helps;
+ if ( isset( $tax->no_tagcloud ) && empty( $tax->labels['not_found'] ) )
+ $tax->labels['not_found'] = $tax->no_tagcloud;
+
$nohier_vs_hier_defaults = array(
'name' => array( _x( 'Tags', 'taxonomy general name' ), _x( 'Categories', 'taxonomy general name' ) ),
'singular_name' => array( _x( 'Tag', 'taxonomy singular name' ), _x( 'Category', 'taxonomy singular name' ) ),
'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.' ), __( 'No categories found.' ) ),
);
$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
/**
* Add an already registered taxonomy to an object type.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 3.0.0
* @uses $wp_taxonomies Modifies taxonomy object
*
return true;
}
+/**
+ * Remove an already registered taxonomy from an object type.
+ *
+ * @since 3.7.0
+ *
+ * @param string $taxonomy Name of taxonomy object.
+ * @param string $object_type Name of the object type.
+ * @return bool True if successful, false if not.
+ */
+function unregister_taxonomy_for_object_type( $taxonomy, $object_type ) {
+ global $wp_taxonomies;
+
+ if ( ! isset( $wp_taxonomies[ $taxonomy ] ) )
+ return false;
+
+ if ( ! get_post_type_object( $object_type ) )
+ return false;
+
+ $key = array_search( $object_type, $wp_taxonomies[ $taxonomy ]->object_type, true );
+ if ( false === $key )
+ return false;
+
+ unset( $wp_taxonomies[ $taxonomy ]->object_type[ $key ] );
+ return true;
+}
+
//
// Term API
//
* using PHP sort family functions or using the database by using $args with
* either ASC or DESC array. The value should be in the key named 'order'.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
- * @uses wp_parse_args() Creates an array from string $args.
+ * @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
function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
global $wpdb;
- if ( ! is_array( $term_ids ) )
+ if ( ! is_array( $term_ids ) ) {
$term_ids = array( $term_ids );
-
- if ( ! is_array( $taxonomies ) )
+ }
+ if ( ! is_array( $taxonomies ) ) {
$taxonomies = array( $taxonomies );
-
+ }
foreach ( (array) $taxonomies as $taxonomy ) {
- if ( ! taxonomy_exists( $taxonomy ) )
+ if ( ! taxonomy_exists( $taxonomy ) ) {
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
+ }
}
$defaults = array( 'order' => 'ASC' );
$args = wp_parse_args( $args, $defaults );
- extract( $args, EXTR_SKIP );
- $order = ( 'desc' == strtolower( $order ) ) ? 'DESC' : 'ASC';
+ $order = ( 'desc' == strtolower( $args['order'] ) ) ? 'DESC' : 'ASC';
$term_ids = array_map('intval', $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");
- if ( ! $object_ids )
+ if ( ! $object_ids ){
return array();
-
+ }
return $object_ids;
}
}
/**
- * Container class for a multiple taxonomy query.
+ * 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 {
/**
- * List of taxonomy queries. A single taxonomy query is an associative array:
- * - 'taxonomy' string The taxonomy being queried
- * - 'terms' string|array The list of terms
- * - 'field' string (optional) Which term field is being used.
- * Possible values: 'term_id', 'slug' or 'name'
- * Default: 'term_id'
- * - 'operator' string (optional)
- * Possible values: 'AND', 'IN' or 'NOT IN'.
- * Default: 'IN'
- * - 'include_children' bool (optional) Whether to include child terms.
- * Default: true
+ * Array of taxonomy queries.
+ *
+ * See {@see WP_Tax_Query::__construct()} for information on tax query arguments.
*
* @since 3.1.0
* @access public
* @access private
* @var string
*/
- private static $no_results = array( 'join' => '', 'where' => ' AND 0 = 1' );
+ private static $no_results = array( 'join' => array( '' ), 'where' => array( '0 = 1' ) );
/**
- * Constructor.
+ * 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).
*
- * Parses a compact tax query and sets defaults.
+ * @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 A compact tax query:
- * array(
- * 'relation' => 'OR',
- * array(
- * 'taxonomy' => 'tax1',
- * 'terms' => array( 'term1', 'term2' ),
- * 'field' => 'slug',
- * ),
- * array(
- * 'taxonomy' => 'tax2',
- * 'terms' => array( 'term-a', 'term-b' ),
- * 'field' => 'slug',
- * ),
- * )
+ * @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'] ) && strtoupper( $tax_query['relation'] ) == 'OR' ) {
- $this->relation = 'OR';
+ 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(),
- 'include_children' => true,
'field' => 'term_id',
'operator' => 'IN',
+ 'include_children' => true,
);
- foreach ( $tax_query as $query ) {
- if ( ! is_array( $query ) )
- continue;
+ foreach ( $queries as $key => $query ) {
+ if ( 'relation' === $key ) {
+ $cleaned_query['relation'] = $this->sanitize_relation( $query );
+
+ // First-order clause.
+ } elseif ( 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.
+ } elseif ( is_array( $query ) ) {
+ $cleaned_subquery = $this->sanitize_query( $query );
- $query = array_merge( $defaults, $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;
+ }
+ }
+ }
- $query['terms'] = (array) $query['terms'];
+ return $cleaned_query;
+ }
- $this->queries[] = $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
- * @param string $primary_id_column
- * @return array
+ * @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'];
+ } elseif ( 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'][] = '';
+ } elseif ( 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 = '';
- $where = array();
- $i = 0;
- foreach ( $this->queries as $query ) {
- $this->clean_query( $query );
+ $this->clean_query( $clause );
- if ( is_wp_error( $query ) ) {
- return self::$no_results;
- }
+ if ( is_wp_error( $clause ) ) {
+ return self::$no_results;
+ }
- extract( $query );
+ $terms = $clause['terms'];
+ $operator = strtoupper( $clause['operator'] );
- if ( 'IN' == $operator ) {
+ if ( 'IN' == $operator ) {
- if ( empty( $terms ) ) {
- if ( 'OR' == $this->relation )
- continue;
- else
- return self::$no_results;
- }
+ if ( empty( $terms ) ) {
+ return self::$no_results;
+ }
- $terms = implode( ',', $terms );
+ $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" : '';
- $join .= " ON ($primary_table.$primary_id_column = $alias.object_id)";
+ $join .= " ON ($this->primary_table.$this->primary_id_column = $alias.object_id)";
+ }
- $where[] = "$alias.term_taxonomy_id $operator ($terms)";
- } elseif ( 'NOT IN' == $operator ) {
- if ( empty( $terms ) )
- continue;
+ $where = "$alias.term_taxonomy_id $operator ($terms)";
- $terms = implode( ',', $terms );
+ } elseif ( 'NOT IN' == $operator ) {
- $where[] = "$primary_table.$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;
+ }
- if ( empty( $terms ) )
- continue;
+ $terms = implode( ',', $terms );
- $num_terms = count( $terms );
+ $where = "$this->primary_table.$this->primary_id_column NOT IN (
+ SELECT object_id
+ FROM $wpdb->term_relationships
+ WHERE term_taxonomy_id IN ($terms)
+ )";
- $terms = implode( ',', $terms );
+ } elseif ( 'AND' == $operator ) {
- $where[] = "(
- SELECT COUNT(1)
- FROM $wpdb->term_relationships
- WHERE term_taxonomy_id IN ($terms)
- AND object_id = $primary_table.$primary_id_column
- ) = $num_terms";
+ if ( empty( $terms ) ) {
+ return $sql;
}
- $i++;
+ $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'] );
+
}
- if ( !empty( $where ) )
- $where = ' AND ( ' . implode( " $this->relation ", $where ) . ' )';
- else
- $where = '';
+ $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 compact( 'join', 'where' );
+ return $alias;
}
/**
* @since 3.2.0
* @access private
*
- * @param array &$query The single query
+ * @param array &$query The single query.
*/
private function clean_query( &$query ) {
- if ( ! taxonomy_exists( $query['taxonomy'] ) ) {
+ 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'] ) ) {
$query = new WP_Error( 'Invalid taxonomy' );
return;
}
* Transforms a single query, from one field to another.
*
* @since 3.2.0
- * @access private
*
- * @param array &$query The single query
- * @param string $resulting_field The resulting field
+ * @param array &$query The single query.
+ * @param string $resulting_field The resulting field. Accepts 'slug', 'name', 'term_taxonomy_id',
+ * or 'term_id'. Default: 'term_id'.
*/
- private function transform_query( &$query, $resulting_field ) {
+ public function transform_query( &$query, $resulting_field ) {
global $wpdb;
if ( empty( $query['terms'] ) )
if ( $query['field'] == $resulting_field )
return;
- $resulting_field = esc_sql( $resulting_field );
+ $resulting_field = sanitize_key( $resulting_field );
switch ( $query['field'] ) {
case 'slug':
case 'name':
- $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $query['terms'] ) ) . "'";
+ foreach ( $query['terms'] as &$term ) {
+ /*
+ * 0 is the $term_id parameter. We don't have a term ID yet, but it doesn't
+ * matter because `sanitize_term_field()` ignores the $term_id param when the
+ * context is 'db'.
+ */
+ $term = "'" . esc_sql( sanitize_term_field( $query['field'], $term, 0, $query['taxonomy'], 'db' ) ) . "'";
+ }
+
+ $terms = implode( ",", $query['terms'] );
+
$terms = $wpdb->get_col( "
SELECT $wpdb->term_taxonomy.$resulting_field
FROM $wpdb->term_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( "
* example, if 'category', it would be 'get_category' as the filter name. Useful
* for custom taxonomies or plugging into default taxonomies.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
- * @uses sanitize_term() Cleanses the term based on $filter context before returning.
+ * @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.
* @return mixed|null|WP_Error Term Row from database. Will return null if $term is empty. If taxonomy does not
* exist then WP_Error will be returned.
*/
-function &get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
+function get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
global $wpdb;
- $null = null;
if ( empty($term) ) {
$error = new WP_Error('invalid_term', __('Empty Term'));
}
if ( is_object($term) && empty($term->filter) ) {
- wp_cache_add($term->term_id, $term, $taxonomy);
+ wp_cache_add( $term->term_id, $term, $taxonomy );
$_term = $term;
} else {
if ( is_object($term) )
$term = $term->term_id;
if ( !$term = (int) $term )
- return $null;
- if ( ! $_term = wp_cache_get($term, $taxonomy) ) {
+ 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);
+ return null;
+ wp_cache_add( $term, $_term, $taxonomy );
}
}
- $_term = apply_filters('get_term', $_term, $taxonomy);
- $_term = apply_filters("get_$taxonomy", $_term, $taxonomy);
+ /**
+ * Filter a term.
+ *
+ * @since 2.3.0
+ *
+ * @param int|object $_term Term object or ID.
+ * @param string $taxonomy The taxonomy slug.
+ */
+ $_term = apply_filters( 'get_term', $_term, $taxonomy );
+
+ /**
+ * Filter a taxonomy.
+ *
+ * The dynamic portion of the filter name, `$taxonomy`, refers
+ * to the taxonomy slug.
+ *
+ * @since 2.3.0
+ *
+ * @param int|object $_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 ) {
* 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.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
- * @uses sanitize_term() Cleanses the term based on $filter context before returning.
+ * @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', or 'id'
+ * @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
$value = sanitize_title($value);
if ( empty($value) )
return false;
- } else if ( 'name' == $field ) {
+ } elseif ( 'name' == $field ) {
// Assume already escaped
- $value = stripslashes($value);
+ $value = wp_unslash($value);
$field = 't.name';
+ } elseif ( 'term_taxonomy_id' == $field ) {
+ $value = (int) $value;
+ $field = 'tt.term_taxonomy_id';
} else {
- $term = get_term( (int) $value, $taxonomy, $output, $filter);
+ $term = get_term( (int) $value, $taxonomy, $output, $filter );
if ( is_wp_error( $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, $value) );
- if ( !$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 ) );
+ if ( ! $term )
return false;
- wp_cache_add($term->term_id, $term, $taxonomy);
+ 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 );
- $term = apply_filters('get_term', $term, $taxonomy);
- $term = apply_filters("get_$taxonomy", $term, $taxonomy);
$term = sanitize_term($term, $taxonomy, $filter);
if ( $output == OBJECT ) {
*
* Will return an empty array if $term does not exist in $taxonomy.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
- * @uses _get_term_hierarchy()
- * @uses get_term_children() Used to get the children of both $taxonomy and the parent $term
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $term_id ID of Term to get children
* @param string $taxonomy Taxonomy Name
- * @return array|WP_Error List of Term Objects. WP_Error returned if $taxonomy does not exist
+ * @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) )
$children = $terms[$term_id];
foreach ( (array) $terms[$term_id] as $child ) {
+ if ( $term_id == $child ) {
+ continue;
+ }
+
if ( isset($terms[$child]) )
$children = array_merge($children, get_term_children($child, $taxonomy));
}
* reasons and for simplicity of usage. See sanitize_term_field() for more
* information.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses sanitize_term_field() Passes the return value in sanitize_term_field on success.
- *
* @param string $field Term field to fetch
* @param int $term Term ID
* @param string $taxonomy Taxonomy Name
* Return value is sanitize_term() and usage is for sanitizing the term for
* editing. Function is for contextual and simplicity.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses sanitize_term() Passes the return value on success
- *
* @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.
* The '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.
- *
- * The list of arguments that $args can contain, which will overwrite the defaults:
- *
- * orderby - Default is 'name'. Can be name, count, term_group, slug or nothing
- * (will use term_id), Passing a custom value other than these will cause it to
- * order based on the custom value.
- *
- * order - Default is ASC. Can use DESC.
- *
- * hide_empty - Default is true. Will not return empty terms, which means
- * terms whose count is 0 according to the given taxonomy.
- *
- * exclude - Default is an empty array. An array, comma- or space-delimited string
- * of term ids to exclude from the return array. If 'include' is non-empty,
- * 'exclude' is ignored.
- *
- * exclude_tree - Default is an empty array. An array, comma- or space-delimited
- * string of term ids to exclude from the return array, along with all of their
- * descendant terms according to the primary taxonomy. If 'include' is non-empty,
- * 'exclude_tree' is ignored.
- *
- * include - Default is an empty array. An array, comma- or space-delimited string
- * of term ids to include in the return array.
- *
- * number - The maximum number of terms to return. Default is to return them all.
- *
- * offset - The number by which to offset the terms query.
- *
- * fields - Default is 'all', which returns an array of term objects.
- * If 'fields' is 'ids' or 'names', returns an array of
- * integers or strings, respectively.
- *
- * slug - Returns terms whose "slug" matches this value. Default is empty string.
- *
- * hierarchical - Whether to include terms that have non-empty descendants
- * (even if 'hide_empty' is set to true).
- *
- * search - Returned terms' names will contain the value of 'search',
- * case-insensitive. Default is an empty string.
- *
- * name__like - Returned terms' names will begin with the value of 'name__like',
- * case-insensitive. Default is empty string.
- *
- * The argument 'pad_counts', if set to true will include the quantity of a term's
- * children in the quantity of each term's "count" object variable.
- *
- * The 'get' argument, if set to 'all' instead of its default empty string,
- * returns terms regardless of ancestry or whether the terms are empty.
- *
- * The 'child_of' argument, when used, should be set to the integer of a term ID. Its default
- * is 0. If set to a non-zero value, all returned terms will be descendants
- * of that term according to the given taxonomy. Hence 'child_of' is set to 0
- * if more than one taxonomy is passed in $taxonomies, because multiple taxonomies
- * make term ancestry ambiguous.
- *
- * The 'parent' argument, when used, should be set to the integer of a term ID. Its default is
- * the empty string '', which has a different meaning from the integer 0.
- * If set to an integer value, all returned terms will have as an immediate
- * ancestor the term whose ID is specified by that integer according to the given taxonomy.
- * The 'parent' argument is different from 'child_of' in that a term X is considered a 'parent'
- * of term Y only if term X is the father of term Y, not its grandfather or great-grandfather, etc.
- *
- * The 'cache_domain' argument enables a unique cache key to be produced when this query is stored
- * in object cache. For instance, if you are using one of this function's filters to modify the
- * query (such as 'terms_clauses'), setting 'cache_domain' to a unique value will not overwrite
- * the cache for similar queries. Default value is 'core'.
- *
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- *
- * @uses $wpdb
- * @uses wp_parse_args() Merges the defaults with those defined by $args and allows for strings.
- *
- * @param string|array $taxonomies Taxonomy name or list of Taxonomy names
- * @param string|array $args The values of what to search for when returning terms
- * @return array|WP_Error List of Term Objects and their children. Will return WP_Error, if any of $taxonomies do not exist.
+ * @since 4.2.0 Introduced 'name' and 'childless' parameters.
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @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', 'description'), '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|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
+ * term objects), 'ids' or 'names' (returns an array of integers
+ * or strings, respectively. 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'.
+ * }
+ * @return array|WP_Error List of Term Objects and their children. Will return WP_Error, if any of $taxonomies
+ * do not exist.
*/
-function &get_terms($taxonomies, $args = '') {
+function get_terms( $taxonomies, $args = '' ) {
global $wpdb;
$empty_array = array();
- $single_taxonomy = false;
- if ( !is_array($taxonomies) ) {
- $single_taxonomy = true;
- $taxonomies = array($taxonomies);
+ $single_taxonomy = ! is_array( $taxonomies ) || 1 === count( $taxonomies );
+ if ( ! is_array( $taxonomies ) ) {
+ $taxonomies = array( $taxonomies );
}
foreach ( $taxonomies as $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' => '',
+ 'number' => '', 'fields' => 'all', 'name' => '', 'slug' => '', 'parent' => '', 'childless' => false,
+ 'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '', 'description__like' => '',
'pad_counts' => false, 'offset' => '', 'search' => '', 'cache_domain' => 'core' );
$args = wp_parse_args( $args, $defaults );
$args['number'] = absint( $args['number'] );
$args['offset'] = absint( $args['offset'] );
- if ( !$single_taxonomy || !is_taxonomy_hierarchical($taxonomies[0]) ||
- '' !== $args['parent'] ) {
- $args['child_of'] = 0;
+
+ // Save queries by not crawling the tree in the case of multiple taxes or a flat tax.
+ $has_hierarchical_tax = false;
+ foreach ( $taxonomies as $_tax ) {
+ if ( is_taxonomy_hierarchical( $_tax ) ) {
+ $has_hierarchical_tax = true;
+ }
+ }
+
+ if ( ! $has_hierarchical_tax ) {
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
+ // 'parent' overrides 'child_of'.
+ if ( 0 < intval( $args['parent'] ) ) {
+ $args['child_of'] = false;
+ }
+
if ( 'all' == $args['get'] ) {
+ $args['childless'] = false;
$args['child_of'] = 0;
$args['hide_empty'] = 0;
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
+ /**
+ * Filter the terms query arguments.
+ *
+ * @since 3.1.0
+ *
+ * @param array $args An array of arguments.
+ * @param array $taxonomies An array of taxonomies.
+ */
$args = apply_filters( 'get_terms_args', $args, $taxonomies );
- extract($args, EXTR_SKIP);
+ // Avoid the query if the queried parent/child_of term has no descendants.
+ $child_of = $args['child_of'];
+ $parent = $args['parent'];
if ( $child_of ) {
- $hierarchy = _get_term_hierarchy($taxonomies[0]);
- if ( !isset($hierarchy[$child_of]) )
- return $empty_array;
+ $_parent = $child_of;
+ } elseif ( $parent ) {
+ $_parent = $parent;
+ } else {
+ $_parent = false;
}
- if ( $parent ) {
- $hierarchy = _get_term_hierarchy($taxonomies[0]);
- if ( !isset($hierarchy[$parent]) )
+ if ( $_parent ) {
+ $in_hierarchy = false;
+ foreach ( $taxonomies as $_tax ) {
+ $hierarchy = _get_term_hierarchy( $_tax );
+
+ if ( isset( $hierarchy[ $_parent ] ) ) {
+ $in_hierarchy = true;
+ }
+ }
+
+ if ( ! $in_hierarchy ) {
return $empty_array;
+ }
}
// $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']) : '';
- $key = md5( serialize( compact(array_keys($defaults)) ) . serialize( $taxonomies ) . $filter_key );
- $last_changed = wp_cache_get('last_changed', 'terms');
- if ( !$last_changed ) {
- $last_changed = time();
- wp_cache_set('last_changed', $last_changed, 'terms');
+ $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 ) {
- $cache = apply_filters('get_terms', $cache, $taxonomies, $args);
+
+ /**
+ * 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 arguments to get terms.
+ */
+ $cache = apply_filters( 'get_terms', $cache, $taxonomies, $args );
return $cache;
}
- $_orderby = strtolower($orderby);
- if ( 'count' == $_orderby )
+ $_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 ( 'term_group' == $_orderby )
+ } elseif ( 'include' == $_orderby && ! empty( $args['include'] ) ) {
+ $include = implode( ',', array_map( 'absint', $args['include'] ) );
+ $orderby = "FIELD( t.term_id, $include )";
+ } 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 ) {
$orderby = 't.term_id';
- else
+ } 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 array $taxonomies An array of taxonomies.
+ */
+ $orderby = apply_filters( 'get_terms_orderby', $orderby, $args, $taxonomies );
- $orderby = apply_filters( 'get_terms_orderby', $orderby, $args );
-
- if ( !empty($orderby) )
+ $order = strtoupper( $args['order'] );
+ if ( ! empty( $orderby ) ) {
$orderby = "ORDER BY $orderby";
- else
+ } else {
$order = '';
+ }
- $order = strtoupper( $order );
- if ( '' !== $order && !in_array( $order, array( 'ASC', 'DESC' ) ) )
+ if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ) ) ) {
$order = 'ASC';
+ }
$where = "tt.taxonomy IN ('" . implode("', '", $taxonomies) . "')";
+
+ $exclude = $args['exclude'];
+ $exclude_tree = $args['exclude_tree'];
+ $include = $args['include'];
+
$inclusions = '';
- if ( !empty($include) ) {
+ if ( ! empty( $include ) ) {
$exclude = '';
$exclude_tree = '';
- $interms = wp_parse_id_list($include);
- foreach ( $interms as $interm ) {
- if ( empty($inclusions) )
- $inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
- else
- $inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
+ $inclusions = implode( ',', wp_parse_id_list( $include ) );
+ }
+
+ if ( ! empty( $inclusions ) ) {
+ $inclusions = ' AND t.term_id IN ( ' . $inclusions . ' )';
+ $where .= $inclusions;
+ }
+
+ $exclusions = array();
+ if ( ! empty( $exclude_tree ) ) {
+ $exclude_tree = wp_parse_id_list( $exclude_tree );
+ $excluded_children = $exclude_tree;
+ foreach ( $exclude_tree as $extrunk ) {
+ $excluded_children = array_merge(
+ $excluded_children,
+ (array) get_terms( $taxonomies[0], array( 'child_of' => intval( $extrunk ), 'fields' => 'ids', 'hide_empty' => 0 ) )
+ );
}
+ $exclusions = array_merge( $excluded_children, $exclusions );
}
- if ( !empty($inclusions) )
- $inclusions .= ')';
- $where .= $inclusions;
+ if ( ! empty( $exclude ) ) {
+ $exclusions = array_merge( wp_parse_id_list( $exclude ), $exclusions );
+ }
- $exclusions = '';
- if ( !empty( $exclude_tree ) ) {
- $excluded_trunks = wp_parse_id_list($exclude_tree);
- foreach ( $excluded_trunks as $extrunk ) {
- $excluded_children = (array) get_terms($taxonomies[0], array('child_of' => intval($extrunk), 'fields' => 'ids', 'hide_empty' => 0));
- $excluded_children[] = $extrunk;
- foreach( $excluded_children as $exterm ) {
- if ( empty($exclusions) )
- $exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
- else
- $exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
- }
+ // '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 ), $exclusions );
}
}
- if ( !empty($exclude) ) {
- $exterms = wp_parse_id_list($exclude);
- foreach ( $exterms as $exterm ) {
- if ( empty($exclusions) )
- $exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
- else
- $exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
+ if ( ! empty( $exclusions ) ) {
+ $exclusions = ' AND t.term_id NOT IN (' . implode( ',', array_map( 'intval', $exclusions ) ) . ')';
+ } else {
+ $exclusions = '';
+ }
+
+ /**
+ * Filter the terms to exclude from the terms query.
+ *
+ * @since 2.3.0
+ *
+ * @param string $exclusions NOT IN clause of the terms query.
+ * @param array $args An array of terms query arguments.
+ * @param array $taxonomies An array of taxonomies.
+ */
+ $exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies );
+
+ if ( ! empty( $exclusions ) ) {
+ $where .= $exclusions;
+ }
+
+ if ( ! empty( $args['name'] ) ) {
+ if ( is_array( $args['name'] ) ) {
+ $name = array_map( 'sanitize_text_field', $args['name'] );
+ $where .= " AND t.name IN ('" . implode( "', '", array_map( 'esc_sql', $name ) ) . "')";
+ } else {
+ $name = sanitize_text_field( $args['name'] );
+ $where .= $wpdb->prepare( " AND t.name = %s", $name );
}
}
- if ( !empty($exclusions) )
- $exclusions .= ')';
- $exclusions = apply_filters('list_terms_exclusions', $exclusions, $args );
- $where .= $exclusions;
+ if ( ! empty( $args['slug'] ) ) {
+ if ( is_array( $args['slug'] ) ) {
+ $slug = array_map( 'sanitize_title', $args['slug'] );
+ $where .= " AND t.slug IN ('" . implode( "', '", $slug ) . "')";
+ } else {
+ $slug = sanitize_title( $args['slug'] );
+ $where .= " AND t.slug = '$slug'";
+ }
+ }
- if ( !empty($slug) ) {
- $slug = sanitize_title($slug);
- $where .= " AND t.slug = '$slug'";
+ if ( ! empty( $args['name__like'] ) ) {
+ $where .= $wpdb->prepare( " AND t.name LIKE %s", '%' . $wpdb->esc_like( $args['name__like'] ) . '%' );
}
- if ( !empty($name__like) ) {
- $name__like = like_escape( $name__like );
- $where .= $wpdb->prepare( " AND t.name LIKE %s", $name__like . '%' );
+ if ( ! empty( $args['description__like'] ) ) {
+ $where .= $wpdb->prepare( " AND tt.description LIKE %s", '%' . $wpdb->esc_like( $args['description__like'] ) . '%' );
}
if ( '' !== $parent ) {
$where .= " AND tt.parent = '$parent'";
}
- if ( $hide_empty && !$hierarchical )
+ $hierarchical = $args['hierarchical'];
+ if ( 'count' == $args['fields'] ) {
+ $hierarchical = false;
+ }
+ if ( $args['hide_empty'] && !$hierarchical ) {
$where .= ' AND tt.count > 0';
+ }
+
+ $number = $args['number'];
+ $offset = $args['offset'];
// don't limit the query results when we have to descend the family tree
- if ( ! empty($number) && ! $hierarchical && empty( $child_of ) && '' === $parent ) {
- if ( $offset )
+ if ( $number && ! $hierarchical && ! $child_of && '' === $parent ) {
+ if ( $offset ) {
$limits = 'LIMIT ' . $offset . ',' . $number;
- else
+ } else {
$limits = 'LIMIT ' . $number;
+ }
} else {
$limits = '';
}
- if ( !empty($search) ) {
- $search = like_escape($search);
- $where .= $wpdb->prepare( " AND (t.name LIKE %s)", '%' . $search . '%');
+ 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 );
}
$selects = array();
- switch ( $fields ) {
+ switch ( $args['fields'] ) {
case 'all':
- $selects = array('t.*', 'tt.*');
+ $selects = array( 't.*', 'tt.*' );
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 = '';
$order = '';
- $selects = array('COUNT(*)');
+ $selects = array( 'COUNT(*)' );
+ break;
+ case 'id=>name':
+ $selects = array( 't.term_id', 't.name', 'tt.count', 'tt.taxonomy' );
+ break;
+ case 'id=>slug':
+ $selects = array( 't.term_id', 't.slug', 'tt.count', 'tt.taxonomy' );
+ break;
}
- $_fields = $fields;
+ $_fields = $args['fields'];
- $fields = implode(', ', apply_filters( 'get_terms_fields', $selects, $args ));
+ /**
+ * Filter the fields to select in the terms query.
+ *
+ * Field lists modified using this filter will only modify the term fields returned
+ * by the function when the `$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 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";
$pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits' );
+
+ /**
+ * Filter the terms query SQL clauses.
+ *
+ * @since 3.1.0
+ *
+ * @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 );
- foreach ( $pieces as $piece )
- $$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : '';
+ $fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';
+ $join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';
+ $where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';
+ $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";
- $fields = $_fields;
-
- if ( 'count' == $fields ) {
+ if ( 'count' == $_fields ) {
$term_count = $wpdb->get_var($query);
return $term_count;
}
$terms = $wpdb->get_results($query);
- if ( 'all' == $fields ) {
- update_term_cache($terms);
+ if ( 'all' == $_fields ) {
+ update_term_cache( $terms );
}
if ( empty($terms) ) {
- wp_cache_add( $cache_key, array(), 'terms', 86400 ); // one day
- $terms = apply_filters('get_terms', array(), $taxonomies, $args);
+ 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;
}
if ( $child_of ) {
- $children = _get_term_hierarchy($taxonomies[0]);
- if ( ! empty($children) )
- $terms = & _get_term_children($child_of, $terms, $taxonomies[0]);
+ 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 ( $pad_counts && 'all' == $fields )
- _pad_term_counts($terms, $taxonomies[0]);
+ if ( $args['pad_counts'] && 'all' == $_fields ) {
+ foreach ( $taxonomies as $_tax ) {
+ _pad_term_counts( $terms, $_tax );
+ }
+ }
// Make sure we show empty categories that have children.
- if ( $hierarchical && $hide_empty && is_array($terms) ) {
+ if ( $hierarchical && $args['hide_empty'] && is_array( $terms ) ) {
foreach ( $terms as $k => $term ) {
if ( ! $term->count ) {
- $children = _get_term_children($term->term_id, $terms, $taxonomies[0]);
- if ( is_array($children) )
- foreach ( $children as $child )
- if ( $child->count )
+ $children = get_term_children( $term->term_id, $term->taxonomy );
+ if ( is_array( $children ) ) {
+ foreach ( $children as $child_id ) {
+ $child = get_term( $child_id, $term->taxonomy );
+ if ( $child->count ) {
continue 2;
+ }
+ }
+ }
// It really is empty
unset($terms[$k]);
}
}
}
- reset ( $terms );
$_terms = array();
- if ( 'id=>parent' == $fields ) {
- while ( $term = array_shift($terms) )
- $_terms[$term->term_id] = $term->parent;
- $terms = $_terms;
- } elseif ( 'ids' == $fields ) {
- while ( $term = array_shift($terms) )
+ if ( 'id=>parent' == $_fields ) {
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->parent;
+ }
+ } elseif ( 'ids' == $_fields ) {
+ foreach ( $terms as $term ) {
$_terms[] = $term->term_id;
- $terms = $_terms;
- } elseif ( 'names' == $fields ) {
- while ( $term = array_shift($terms) )
+ }
+ } elseif ( 'names' == $_fields ) {
+ foreach ( $terms as $term ) {
$_terms[] = $term->name;
+ }
+ } elseif ( 'id=>name' == $_fields ) {
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->name;
+ }
+ } elseif ( 'id=>slug' == $_fields ) {
+ foreach ( $terms as $term ) {
+ $_terms[ $term->term_id ] = $term->slug;
+ }
+ }
+
+ if ( ! empty( $_terms ) ) {
$terms = $_terms;
}
- if ( 0 < $number && intval(@count($terms)) > $number ) {
- $terms = array_slice($terms, $offset, $number);
+ if ( $number && is_array( $terms ) && count( $terms ) > $number ) {
+ $terms = array_slice( $terms, $offset, $number );
}
- wp_cache_add( $cache_key, $terms, 'terms', 86400 ); // one day
+ wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
- $terms = apply_filters('get_terms', $terms, $taxonomies, $args);
+ /** This filter is documented in wp-includes/taxonomy */
+ $terms = apply_filters( 'get_terms', $terms, $taxonomies, $args );
return $terms;
}
*
* Formerly is_term(), introduced in 2.3.0.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 3.0.0
*
- * @uses $wpdb
+ * @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 ID of parent term under which to confine the exists search.
- * @return mixed Returns 0 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 taxonomy if the pairing exists.
+ * @param int $parent Optional. ID of parent term under which to confine the exists search.
+ * @return mixed Returns null if the term does not exist. Returns the term ID
+ * if no taxonomy is specified and the term ID exists. Returns
+ * an array of the term ID and the term taxonomy ID the taxonomy
+ * is specified and the pairing exists.
*/
-function term_exists($term, $taxonomy = '', $parent = 0) {
+function term_exists( $term, $taxonomy = '', $parent = null ) {
global $wpdb;
$select = "SELECT term_id FROM $wpdb->terms as t WHERE ";
return $wpdb->get_var( $wpdb->prepare( $select . $where, $term ) );
}
- $term = trim( stripslashes( $term ) );
-
- if ( '' === $slug = sanitize_title($term) )
- return 0;
+ $term = trim( wp_unslash( $term ) );
+ $slug = sanitize_title( $term );
$where = 't.slug = %s';
$else_where = 't.name = %s';
$where_fields = array($slug);
$else_where_fields = array($term);
+ $orderby = 'ORDER BY t.term_id ASC';
+ $limit = 'LIMIT 1';
if ( !empty($taxonomy) ) {
- $parent = (int) $parent;
- if ( $parent > 0 ) {
+ if ( is_numeric( $parent ) ) {
+ $parent = (int) $parent;
$where_fields[] = $parent;
$else_where_fields[] = $parent;
$where .= ' AND tt.parent = %d';
$where_fields[] = $taxonomy;
$else_where_fields[] = $taxonomy;
- if ( $result = $wpdb->get_row( $wpdb->prepare("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $where AND tt.taxonomy = %s", $where_fields), ARRAY_A) )
+ if ( $result = $wpdb->get_row( $wpdb->prepare("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $where AND tt.taxonomy = %s $orderby $limit", $where_fields), ARRAY_A) )
return $result;
- return $wpdb->get_row( $wpdb->prepare("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $else_where AND tt.taxonomy = %s", $else_where_fields), ARRAY_A);
+ return $wpdb->get_row( $wpdb->prepare("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $else_where AND tt.taxonomy = %s $orderby $limit", $else_where_fields), ARRAY_A);
}
- if ( $result = $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $where", $where_fields) ) )
+ if ( $result = $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $where $orderby $limit", $where_fields) ) )
return $result;
- return $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $else_where", $else_where_fields) );
+ return $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $else_where $orderby $limit", $else_where_fields) );
}
/**
*
* The $term is expected to be either an array or an object.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses sanitize_term_field Used to sanitize all fields in a term
- *
* @param array|object $term The term to check
* @param string $taxonomy The taxonomy name to use
* @param string $context Default is 'display'.
*/
function sanitize_term($term, $taxonomy, $context = 'display') {
- if ( 'raw' == $context )
- return $term;
-
- $fields = array('term_id', 'name', 'description', 'slug', 'count', 'parent', 'term_group');
+ $fields = array( 'term_id', 'name', 'description', 'slug', 'count', 'parent', 'term_group', 'term_taxonomy_id', 'object_id' );
- $do_object = false;
- if ( is_object($term) )
- $do_object = true;
+ $do_object = is_object( $term );
$term_id = $do_object ? $term->term_id : (isset($term['term_id']) ? $term['term_id'] : 0);
* without creating your own filter function. Simply create a function that
* hooks into the filter you need.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $field Term field to sanitize
* @param string $value Search for this term value
* @return mixed sanitized field
*/
function sanitize_term_field($field, $value, $term_id, $taxonomy, $context) {
- if ( 'parent' == $field || 'term_id' == $field || 'count' == $field || 'term_group' == $field ) {
+ $int_fields = array( 'parent', 'term_id', 'count', 'term_group', 'term_taxonomy_id', 'object_id' );
+ if ( in_array( $field, $int_fields ) ) {
$value = (int) $value;
if ( $value < 0 )
$value = 0;
return $value;
if ( 'edit' == $context ) {
- $value = apply_filters("edit_term_{$field}", $value, $term_id, $taxonomy);
- $value = apply_filters("edit_{$taxonomy}_{$field}", $value, $term_id);
+
+ /**
+ * Filter a term field to edit before it is sanitized.
+ *
+ * The dynamic portion of the filter name, `$field`, refers to the term field.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the term field.
+ * @param int $term_id Term ID.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ $value = apply_filters( "edit_term_{$field}", $value, $term_id, $taxonomy );
+
+ /**
+ * Filter the taxonomy field to edit before it is sanitized.
+ *
+ * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
+ * to the taxonomy slug and taxonomy field, respectively.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the taxonomy field to edit.
+ * @param int $term_id Term ID.
+ */
+ $value = apply_filters( "edit_{$taxonomy}_{$field}", $value, $term_id );
if ( 'description' == $field )
$value = esc_html($value); // textarea_escaped
else
$value = esc_attr($value);
- } else if ( 'db' == $context ) {
- $value = apply_filters("pre_term_{$field}", $value, $taxonomy);
- $value = apply_filters("pre_{$taxonomy}_{$field}", $value);
+ } elseif ( 'db' == $context ) {
+
+ /**
+ * Filter a term field value before it is sanitized.
+ *
+ * The dynamic portion of the filter name, `$field`, refers to the term field.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the term field.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ $value = apply_filters( "pre_term_{$field}", $value, $taxonomy );
+
+ /**
+ * Filter a taxonomy field before it is sanitized.
+ *
+ * The dynamic portions of the filter name, `$taxonomy` and `$field`, refer
+ * to the taxonomy slug and field name, respectively.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the taxonomy field.
+ */
+ $value = apply_filters( "pre_{$taxonomy}_{$field}", $value );
// Back compat filters
- if ( 'slug' == $field )
- $value = apply_filters('pre_category_nicename', $value);
+ if ( 'slug' == $field ) {
+ /**
+ * Filter the category nicename before it is sanitized.
+ *
+ * Use the pre_{$taxonomy}_{$field} hook instead.
+ *
+ * @since 2.0.3
+ *
+ * @param string $value The category nicename.
+ */
+ $value = apply_filters( 'pre_category_nicename', $value );
+ }
- } else if ( 'rss' == $context ) {
- $value = apply_filters("term_{$field}_rss", $value, $taxonomy);
- $value = apply_filters("{$taxonomy}_{$field}_rss", $value);
+ } elseif ( 'rss' == $context ) {
+
+ /**
+ * Filter the term field for use in RSS.
+ *
+ * The dynamic portion of the filter name, `$field`, refers to the term field.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the term field.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ $value = apply_filters( "term_{$field}_rss", $value, $taxonomy );
+
+ /**
+ * Filter the taxonomy field for use in RSS.
+ *
+ * The dynamic portions of the hook name, `$taxonomy`, and $field, refer
+ * to the taxonomy slug and field name, respectively.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the taxonomy field.
+ */
+ $value = apply_filters( "{$taxonomy}_{$field}_rss", $value );
} else {
// Use display filters by default.
- $value = apply_filters("term_{$field}", $value, $term_id, $taxonomy, $context);
- $value = apply_filters("{$taxonomy}_{$field}", $value, $term_id, $context);
+
+ /**
+ * Filter the term field sanitized for display.
+ *
+ * The dynamic portion of the filter name, `$field`, refers to the term field name.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the term field.
+ * @param int $term_id Term ID.
+ * @param string $taxonomy Taxonomy slug.
+ * @param string $context Context to retrieve the term field value.
+ */
+ $value = apply_filters( "term_{$field}", $value, $term_id, $taxonomy, $context );
+
+ /**
+ * Filter the taxonomy field sanitized for display.
+ *
+ * The dynamic portions of the filter name, `$taxonomy`, and $field, refer
+ * to the taxonomy slug and taxonomy field, respectively.
+ *
+ * @since 2.3.0
+ *
+ * @param mixed $value Value of the taxonomy field.
+ * @param int $term_id Term ID.
+ * @param string $context Context to retrieve the taxonomy field value.
+ */
+ $value = apply_filters( "{$taxonomy}_{$field}", $value, $term_id, $context );
}
- if ( 'attribute' == $context )
+ if ( 'attribute' == $context ) {
$value = esc_attr($value);
- else if ( 'js' == $context )
+ } elseif ( 'js' == $context ) {
$value = esc_js($value);
-
+ }
return $value;
}
*
* Default $args is 'hide_empty' which can be 'hide_empty=true' or array('hide_empty' => true).
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses get_terms()
- * @uses wp_parse_args() Turns strings into arrays and merges defaults into an array.
- *
* @param string $taxonomy Taxonomy name
* @param array|string $args Overwrite defaults. See get_terms()
- * @return int How many terms are in $taxonomy
+ * @return int|WP_Error How many terms are in $taxonomy. WP_Error if $taxonomy does not exist.
*/
function wp_count_terms( $taxonomy, $args = array() ) {
$defaults = array('hide_empty' => false);
* a particular taxonomy or taxonomies. Does not remove the term or
* taxonomy itself.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
*
* @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 ) {
- global $wpdb;
-
$object_id = (int) $object_id;
if ( !is_array($taxonomies) )
$taxonomies = array($taxonomies);
foreach ( (array) $taxonomies as $taxonomy ) {
- $tt_ids = wp_get_object_terms($object_id, $taxonomy, array('fields' => 'tt_ids'));
- $in_tt_ids = "'" . implode("', '", $tt_ids) . "'";
- do_action( 'delete_term_relationships', $object_id, $tt_ids );
- $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id) );
- do_action( 'deleted_term_relationships', $object_id, $tt_ids );
- wp_update_term_count($tt_ids, $taxonomy);
+ $term_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids' ) );
+ $term_ids = array_map( 'intval', $term_ids );
+ wp_remove_object_terms( $object_id, $term_ids, $taxonomy );
}
}
*
* The $args 'force_default' will force the term supplied as default to be
* assigned even if the object was not going to be termless
- * @package WordPress
- * @subpackage Taxonomy
+ *
* @since 2.3.0
*
- * @uses $wpdb
- * @uses do_action() Calls both 'delete_term' and 'delete_$taxonomy' action
- * hooks, passing term object, term id. 'delete_term' gets an additional
- * parameter with the $taxonomy parameter.
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $term Term ID
* @param string $taxonomy Taxonomy Name
}
$args = wp_parse_args($args, $defaults);
- extract($args, EXTR_SKIP);
- if ( isset( $default ) ) {
- $default = (int) $default;
- if ( ! term_exists($default, $taxonomy) )
- unset($default);
+ if ( isset( $args['default'] ) ) {
+ $default = (int) $args['default'];
+ if ( ! term_exists( $default, $taxonomy ) ) {
+ unset( $default );
+ }
+ }
+
+ if ( isset( $args['force_default'] ) ) {
+ $force_default = $args['force_default'];
}
+ /**
+ * Fires when deleting a term, before any modifications are made to posts or terms.
+ *
+ * @since 4.1.0
+ *
+ * @param int $term Term ID.
+ * @param string $taxonomy Taxonomy Name.
+ */
+ do_action( 'pre_delete_term', $term, $taxonomy );
+
// Update children to point to new parent
if ( is_taxonomy_hierarchical($taxonomy) ) {
$term_obj = get_term($term, $taxonomy);
return $term_obj;
$parent = $term_obj->parent;
- $edit_tt_ids = $wpdb->get_col( "SELECT `term_taxonomy_id` FROM $wpdb->term_taxonomy WHERE `parent` = " . (int)$term_obj->term_id );
+ $edit_ids = $wpdb->get_results( "SELECT term_id, term_taxonomy_id FROM $wpdb->term_taxonomy WHERE `parent` = " . (int)$term_obj->term_id );
+ $edit_tt_ids = wp_list_pluck( $edit_ids, 'term_taxonomy_id' );
+
+ /**
+ * Fires immediately before a term to delete's children are reassigned a parent.
+ *
+ * @since 2.9.0
+ *
+ * @param array $edit_tt_ids An array of term taxonomy IDs for the given term.
+ */
do_action( 'edit_term_taxonomies', $edit_tt_ids );
$wpdb->update( $wpdb->term_taxonomy, compact( 'parent' ), array( 'parent' => $term_obj->term_id) + compact( 'taxonomy' ) );
+
+ // Clean the cache for all child terms.
+ $edit_term_ids = wp_list_pluck( $edit_ids, 'term_id' );
+ clean_term_cache( $edit_term_ids, $taxonomy );
+
+ /**
+ * Fires immediately after a term to delete's children are reassigned a parent.
+ *
+ * @since 2.9.0
+ *
+ * @param array $edit_tt_ids An array of term taxonomy IDs for the given term.
+ */
do_action( 'edited_term_taxonomies', $edit_tt_ids );
}
foreach ( $tax_object->object_type as $object_type )
clean_object_term_cache( $objects, $object_type );
+ // Get the object before deletion so we can pass to actions below
+ $deleted_term = get_term( $term, $taxonomy );
+
+ /**
+ * Fires immediately before a term taxonomy ID is deleted.
+ *
+ * @since 2.9.0
+ *
+ * @param int $tt_id Term taxonomy ID.
+ */
do_action( 'delete_term_taxonomy', $tt_id );
$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
+
+ /**
+ * Fires immediately after a term taxonomy ID is deleted.
+ *
+ * @since 2.9.0
+ *
+ * @param int $tt_id Term taxonomy ID.
+ */
do_action( 'deleted_term_taxonomy', $tt_id );
// Delete the term if no taxonomies use it.
clean_term_cache($term, $taxonomy);
- do_action('delete_term', $term, $tt_id, $taxonomy);
- do_action("delete_$taxonomy", $term, $tt_id);
+ /**
+ * Fires after a term is deleted from the database and the cache is cleaned.
+ *
+ * @since 2.5.0
+ *
+ * @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.
+ */
+ do_action( 'delete_term', $term, $tt_id, $taxonomy, $deleted_term );
+
+ /**
+ * Fires after a term in a specific taxonomy is deleted.
+ *
+ * The dynamic portion of the hook name, `$taxonomy`, refers to the specific
+ * taxonomy the term belonged to.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ * @param mixed $deleted_term Copy of the already-deleted term, in the form specified
+ * by the parent function. {@see WP_Error} otherwise.
+ */
+ do_action( "delete_$taxonomy", $term, $tt_id, $deleted_term );
return true;
}
* Deletes one existing category.
*
* @since 2.0.0
- * @uses wp_delete_term()
*
* @param int $cat_ID
* @return mixed Returns true if completes delete action; false if term doesn't exist;
/**
* 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.
- *
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
+ * @since 4.2.0 Added support for 'taxonomy', 'parent', and 'term_taxonomy_id' values of `$orderby`.
+ * Introduced `$parent` argument.
+ *
+ * @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.
+ * }
+ * @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 $wpdb;
if ( !is_array($taxonomies) )
$taxonomies = array($taxonomies);
- foreach ( (array) $taxonomies as $taxonomy ) {
+ foreach ( $taxonomies as $taxonomy ) {
if ( ! taxonomy_exists($taxonomy) )
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
}
$object_ids = array($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' => '',
+ );
$args = wp_parse_args( $args, $defaults );
$terms = array();
$args = array_merge($args, $t->args);
}
- extract($args, EXTR_SKIP);
+ $orderby = $args['orderby'];
+ $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";
+ } else if ( in_array( $orderby, array( 'count', 'parent', 'taxonomy', 'term_taxonomy_id' ) ) ) {
+ $orderby = "tt.$orderby";
+ } else if ( 'term_order' === $orderby ) {
$orderby = 'tr.term_order';
- else if ( 'none' == $orderby ) {
+ } else if ( 'none' === $orderby ) {
$orderby = '';
$order = '';
} else {
if ( !empty($orderby) )
$orderby = "ORDER BY $orderby";
+ $order = strtoupper( $order );
+ if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ) ) )
+ $order = 'ASC';
+
+ $taxonomy_array = $taxonomies;
+ $object_id_array = $object_ids;
$taxonomies = "'" . implode("', '", $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';
+ }
- $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";
+ $where = array(
+ "tt.taxonomy IN ($taxonomies)",
+ "tr.object_id IN ($object_ids)",
+ );
+ if ( '' !== $args['parent'] ) {
+ $where[] = $wpdb->prepare( 'tt.parent = %d', $args['parent'] );
+ }
+
+ $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 $where $orderby $order";
+
+ $objects = false;
if ( 'all' == $fields || 'all_with_object_id' == $fields ) {
- $terms = array_merge($terms, $wpdb->get_results($query));
- update_term_cache($terms);
- } else if ( 'ids' == $fields || 'names' == $fields || 'slugs' == $fields ) {
- $terms = array_merge($terms, $wpdb->get_col($query));
- } else if ( 'tt_ids' == $fields ) {
+ $_terms = $wpdb->get_results( $query );
+ foreach ( $_terms as $key => $term ) {
+ $_terms[$key] = sanitize_term( $term, $taxonomy, 'raw' );
+ }
+ $terms = array_merge( $terms, $_terms );
+ update_term_cache( $terms );
+ $objects = true;
+ } 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 );
+ } 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.
+ }
}
- if ( ! $terms )
+ if ( ! $terms ) {
$terms = array();
+ } elseif ( $objects && 'all_with_object_id' !== $fields ) {
+ $_tt_ids = array();
+ $_terms = array();
+ foreach ( $terms as $term ) {
+ if ( in_array( $term->term_taxonomy_id, $_tt_ids ) ) {
+ continue;
+ }
+
+ $_tt_ids[] = $term->term_taxonomy_id;
+ $_terms[] = $term;
+ }
+ $terms = $_terms;
+ } 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 );
- return apply_filters('wp_get_object_terms', $terms, $object_ids, $taxonomies, $args);
+ /**
+ * Filter the terms for a given object or objects.
+ *
+ * The `$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 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 );
}
/**
- * Adds a new term to the database. Optionally marks it as an alias of an existing term.
- *
- * Error handling is assigned for the nonexistence of the $taxonomy and $term
- * parameters before inserting. If both the term id and taxonomy exist
- * previously, then an array will be returned that contains the term id and the
- * contents of what is returned. The keys of the array are 'term_id' and
- * 'term_taxonomy_id' containing numeric values.
+ * Add a new term to the database.
*
- * It is assumed that the term does not yet exist or the above will apply. The
- * term will be first added to the term table and then related to the taxonomy
- * if everything is well. If everything is correct, then several actions will be
- * run prior to a filter and then several actions will be run after the filter
- * is run.
+ * A non-existent term is inserted in the following sequence:
+ * 1. The term is added to the term table, then related to the taxonomy.
+ * 2. If everything is correct, several actions are fired.
+ * 3. The 'term_id_filter' is evaluated.
+ * 4. The term cache is cleaned.
+ * 5. Several more actions are fired.
+ * 6. An array is returned containing the term_id and term_taxonomy_id.
*
- * The arguments decide how the term is handled based on the $args parameter.
- * The following is a list of the available overrides and the defaults.
+ * If the 'slug' argument is not empty, then it is checked to see if the term
+ * is invalid. If it is not a valid, existing term, it is added and the term_id
+ * is given.
*
- * 'alias_of'. There is no default, but if added, expected is the slug that the
- * term will be an alias of. Expected to be a string.
- *
- * 'description'. There is no default. If exists, will be added to the database
- * along with the term. Expected to be a string.
- *
- * 'parent'. Expected to be numeric and default is 0 (zero). Will assign value
- * of 'parent' to the term.
- *
- * 'slug'. Expected to be a string. There is no default.
+ * If the taxonomy is hierarchical, and the 'parent' argument is not empty,
+ * the term is inserted and the term_id will be given.
+
+ * Error handling:
+ * If $taxonomy does not exist or $term is empty,
+ * a WP_Error object will be returned.
*
- * If 'slug' argument exists then the slug will be checked to see if it is not
- * a valid term. If that check succeeds (it is not a valid term), then it is
- * added and the term id is given. If it fails, then a check is made to whether
- * the taxonomy is hierarchical and the parent argument is not empty. If the
- * second check succeeds, the term will be inserted and the term id will be
- * given.
+ * If the term already exists on the same hierarchical level,
+ * or the term slug and name are not unique, a WP_Error object will be returned.
*
- * @package WordPress
- * @subpackage Taxonomy
+ * @global wpdb $wpdb WordPress database abstraction object.
+
* @since 2.3.0
- * @uses $wpdb
- *
- * @uses apply_filters() Calls 'pre_insert_term' hook with term and taxonomy as parameters.
- * @uses do_action() Calls 'create_term' hook with the term id and taxonomy id as parameters.
- * @uses do_action() Calls 'create_$taxonomy' hook with term id and taxonomy id as parameters.
- * @uses apply_filters() Calls 'term_id_filter' hook with term id and taxonomy id as parameters.
- * @uses do_action() Calls 'created_term' hook with the term id and taxonomy id as parameters.
- * @uses do_action() Calls 'created_$taxonomy' hook with term id and taxonomy id as parameters.
- *
- * @param string $term The term to add or update.
- * @param string $taxonomy The taxonomy to which to add the term
- * @param array|string $args Change the values of the inserted term
- * @return array|WP_Error The Term ID and Term Taxonomy ID
+ *
+ * @param string $term The term to add or update.
+ * @param string $taxonomy The taxonomy to which to add the term.
+ * @param array|string $args {
+ * Optional. Array or string of arguments for inserting a term.
+ *
+ * @type string $alias_of Slug of the term to make this term an alias of.
+ * Default empty string. Accepts a term slug.
+ * @type string $description The term description. Default empty string.
+ * @type int $parent The id of the parent term. Default 0.
+ * @type string $slug The term slug to use. Default empty string.
+ * }
+ * @return array|WP_Error An array containing the `term_id` and `term_taxonomy_id`,
+ * {@see WP_Error} otherwise.
*/
function wp_insert_term( $term, $taxonomy, $args = array() ) {
global $wpdb;
- if ( ! taxonomy_exists($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) ) {
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
-
+ }
+ /**
+ * Filter a term before it is sanitized and inserted into the database.
+ *
+ * @since 3.0.0
+ *
+ * @param string $term The term to add or update.
+ * @param string $taxonomy Taxonomy slug.
+ */
$term = apply_filters( 'pre_insert_term', $term, $taxonomy );
- if ( is_wp_error( $term ) )
- return $term;
-
- if ( is_int($term) && 0 == $term )
+ if ( is_wp_error( $term ) ) {
+ return $term;
+ }
+ if ( is_int($term) && 0 == $term ) {
return new WP_Error('invalid_term_id', __('Invalid term ID'));
-
- if ( '' == trim($term) )
+ }
+ if ( '' == trim($term) ) {
return new WP_Error('empty_term_name', __('A name is required for this term'));
-
+ }
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
- $args = wp_parse_args($args, $defaults);
+ $args = wp_parse_args( $args, $defaults );
+
+ 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;
$args = sanitize_term($args, $taxonomy, 'db');
- extract($args, EXTR_SKIP);
// expected_slashed ($name)
- $name = stripslashes($name);
- $description = stripslashes($description);
+ $name = wp_unslash( $args['name'] );
+ $description = wp_unslash( $args['description'] );
+ $parent = (int) $args['parent'];
- if ( empty($slug) )
- $slug = sanitize_title($name);
+ $slug_provided = ! empty( $args['slug'] );
+ if ( ! $slug_provided ) {
+ $slug = sanitize_title( $name );
+ } else {
+ $slug = $args['slug'];
+ }
$term_group = 0;
- if ( $alias_of ) {
- $alias = $wpdb->get_row( $wpdb->prepare( "SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $alias_of) );
- if ( $alias->term_group ) {
+ if ( $args['alias_of'] ) {
+ $alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
+ if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
- } else {
- // The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
+ } elseif ( ! empty( $alias->term_id ) ) {
+ /*
+ * The alias is not in a group, so we create a new one
+ * and add the alias to it.
+ */
$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1;
- do_action( 'edit_terms', $alias->term_id );
- $wpdb->update($wpdb->terms, compact('term_group'), array('term_id' => $alias->term_id) );
- do_action( 'edited_terms', $alias->term_id );
+
+ wp_update_term( $alias->term_id, $taxonomy, array(
+ 'term_group' => $term_group,
+ ) );
}
}
- if ( $term_id = term_exists($slug) ) {
- $existing_term = $wpdb->get_row( $wpdb->prepare( "SELECT name FROM $wpdb->terms WHERE term_id = %d", $term_id), ARRAY_A );
- // We've got an existing term in the same taxonomy, which matches the name of the new term:
- if ( is_taxonomy_hierarchical($taxonomy) && $existing_term['name'] == $name && $exists = term_exists( (int) $term_id, $taxonomy ) ) {
- // Hierarchical, and it matches an existing term, Do not allow same "name" in the same level.
- $siblings = get_terms($taxonomy, array('fields' => 'names', 'get' => 'all', 'parent' => (int)$parent) );
- if ( in_array($name, $siblings) ) {
- return new WP_Error('term_exists', __('A term with the name provided already exists with this parent.'), $exists['term_id']);
+ /*
+ * Prevent the creation of terms with duplicate names at the same level of a taxonomy hierarchy,
+ * unless a unique slug has been explicitly provided.
+ */
+ if ( $name_match = get_term_by( 'name', $name, $taxonomy ) ) {
+ $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( '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 already exists with this parent.' ), $existing_term->term_id );
+ }
} else {
- $slug = wp_unique_term_slug($slug, (object) $args);
- if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) )
- return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error);
- $term_id = (int) $wpdb->insert_id;
+ return new WP_Error( 'term_exists', __( 'A term with the name already exists in this taxonomy.' ), $name_match->term_id );
}
- } elseif ( $existing_term['name'] != $name ) {
- // We've got an existing term, with a different name, Create the new term.
- $slug = wp_unique_term_slug($slug, (object) $args);
- if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) )
- return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error);
- $term_id = (int) $wpdb->insert_id;
- } elseif ( $exists = term_exists( (int) $term_id, $taxonomy ) ) {
- // Same name, same slug.
- return new WP_Error('term_exists', __('A term with the name provided already exists.'), $exists['term_id']);
}
- } else {
- // This term does not exist at all in the database, Create it.
- $slug = wp_unique_term_slug($slug, (object) $args);
- if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) )
- return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error);
- $term_id = (int) $wpdb->insert_id;
}
+ $slug = wp_unique_term_slug( $slug, (object) $args );
+
+ if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) ) {
+ return new WP_Error( 'db_insert_error', __( 'Could not insert term into the database' ), $wpdb->last_error );
+ }
+
+ $term_id = (int) $wpdb->insert_id;
+
// Seems unreachable, However, Is used in the case that a term name is provided, which sanitizes to an empty string.
if ( empty($slug) ) {
$slug = sanitize_title($slug, $term_id);
- do_action( 'edit_terms', $term_id );
+
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edit_terms', $term_id, $taxonomy );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
- do_action( 'edited_terms', $term_id );
+
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edited_terms', $term_id, $taxonomy );
}
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
- if ( !empty($tt_id) )
+ if ( !empty($tt_id) ) {
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
-
+ }
$wpdb->insert( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent') + array( 'count' => 0 ) );
$tt_id = (int) $wpdb->insert_id;
- do_action("create_term", $term_id, $tt_id, $taxonomy);
- do_action("create_$taxonomy", $term_id, $tt_id);
+ /*
+ * Sanity check: if we just created a term with the same parent + taxonomy + slug but a higher term_id than
+ * an existing term, then we have unwittingly created a duplicate term. Delete the dupe, and use the term_id
+ * and term_taxonomy_id of the older term instead. Then return out of the function so that the "create" hooks
+ * are not fired.
+ */
+ $duplicate_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.term_id, tt.term_taxonomy_id FROM $wpdb->terms t INNER JOIN $wpdb->term_taxonomy tt ON ( tt.term_id = t.term_id ) WHERE t.slug = %s AND tt.parent = %d AND tt.taxonomy = %s AND t.term_id < %d AND tt.term_taxonomy_id != %d", $slug, $parent, $taxonomy, $term_id, $tt_id ) );
+ if ( $duplicate_term ) {
+ $wpdb->delete( $wpdb->terms, array( 'term_id' => $term_id ) );
+ $wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
+
+ $term_id = (int) $duplicate_term->term_id;
+ $tt_id = (int) $duplicate_term->term_taxonomy_id;
+
+ clean_term_cache( $term_id, $taxonomy );
+ return array( 'term_id' => $term_id, 'term_taxonomy_id' => $tt_id );
+ }
+
+ /**
+ * Fires immediately after a new term is created, before the term cache is cleaned.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ do_action( "create_term", $term_id, $tt_id, $taxonomy );
+
+ /**
+ * Fires after a new term is created for a specific taxonomy.
+ *
+ * The dynamic portion of the hook name, `$taxonomy`, refers
+ * to the slug of the taxonomy the term was created for.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
+ do_action( "create_$taxonomy", $term_id, $tt_id );
- $term_id = apply_filters('term_id_filter', $term_id, $tt_id);
+ /**
+ * Filter the term ID after a new term is created.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Taxonomy term ID.
+ */
+ $term_id = apply_filters( 'term_id_filter', $term_id, $tt_id );
clean_term_cache($term_id, $taxonomy);
- do_action("created_term", $term_id, $tt_id, $taxonomy);
- do_action("created_$taxonomy", $term_id, $tt_id);
+ /**
+ * Fires after a new term is created, and after the term cache has been cleaned.
+ *
+ * @since 2.3.0
+ */
+ 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.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
+ do_action( "created_$taxonomy", $term_id, $tt_id );
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
}
* A term has no meaning until it is given context by defining which taxonomy it
* exists under.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
*
- * @param int $object_id The object to relate to.
- * @param array|int|string $terms The slug or id of the term, 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 bool $append If false will delete difference of terms.
- * @return array|WP_Error Affected Term IDs
+ * @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 string $taxonomy The context in which to relate the term to the object.
+ * @param bool $append Optional. If false will delete difference of terms. Default false.
+ * @return array|WP_Error Affected Term IDs.
*/
-function wp_set_object_terms($object_id, $terms, $taxonomy, $append = false) {
+function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) {
global $wpdb;
$object_id = (int) $object_id;
if ( $wpdb->get_var( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id = %d", $object_id, $tt_id ) ) )
continue;
+
+ /**
+ * Fires immediately before an object-term relationship is added.
+ *
+ * @since 2.9.0
+ *
+ * @param int $object_id Object ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
do_action( 'add_term_relationship', $object_id, $tt_id );
$wpdb->insert( $wpdb->term_relationships, array( 'object_id' => $object_id, 'term_taxonomy_id' => $tt_id ) );
+
+ /**
+ * Fires immediately after an object-term relationship is added.
+ *
+ * @since 2.9.0
+ *
+ * @param int $object_id Object ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
do_action( 'added_term_relationship', $object_id, $tt_id );
$new_tt_ids[] = $tt_id;
}
wp_update_term_count( $new_tt_ids, $taxonomy );
if ( ! $append ) {
- $delete_terms = array_diff($old_tt_ids, $tt_ids);
- if ( $delete_terms ) {
- $in_delete_terms = "'" . implode("', '", $delete_terms) . "'";
- do_action( 'delete_term_relationships', $object_id, $delete_terms );
- $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_delete_terms)", $object_id) );
- do_action( 'deleted_term_relationships', $object_id, $delete_terms );
- wp_update_term_count($delete_terms, $taxonomy);
+ $delete_tt_ids = array_diff( $old_tt_ids, $tt_ids );
+
+ if ( $delete_tt_ids ) {
+ $in_delete_tt_ids = "'" . implode( "', '", $delete_tt_ids ) . "'";
+ $delete_term_ids = $wpdb->get_col( $wpdb->prepare( "SELECT tt.term_id FROM $wpdb->term_taxonomy AS tt WHERE tt.taxonomy = %s AND tt.term_taxonomy_id IN ($in_delete_tt_ids)", $taxonomy ) );
+ $delete_term_ids = array_map( 'intval', $delete_term_ids );
+
+ $remove = wp_remove_object_terms( $object_id, $delete_term_ids, $taxonomy );
+ if ( is_wp_error( $remove ) ) {
+ return $remove;
+ }
}
}
if ( in_array($tt_id, $final_tt_ids) )
$values[] = $wpdb->prepare( "(%d, %d, %d)", $object_id, $tt_id, ++$term_order);
if ( $values )
- $wpdb->query("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id, term_order) VALUES " . join(',', $values) . " ON DUPLICATE KEY UPDATE term_order = VALUES(term_order)");
+ if ( false === $wpdb->query( "INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id, term_order) VALUES " . join( ',', $values ) . " ON DUPLICATE KEY UPDATE term_order = VALUES(term_order)" ) )
+ return new WP_Error( 'db_insert_error', __( 'Could not insert term relationship into the database' ), $wpdb->last_error );
+ }
+
+ wp_cache_delete( $object_id, $taxonomy . '_relationships' );
+
+ /**
+ * Fires after an object's terms have been set.
+ *
+ * @since 2.8.0
+ *
+ * @param int $object_id Object ID.
+ * @param array $terms An array of object terms.
+ * @param array $tt_ids An array of term taxonomy IDs.
+ * @param string $taxonomy Taxonomy slug.
+ * @param bool $append Whether to append new terms to the old terms.
+ * @param array $old_tt_ids Old array of term taxonomy IDs.
+ */
+ do_action( 'set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids );
+ return $tt_ids;
+}
+
+/**
+ * Add term(s) associated with a given object.
+ *
+ * @since 3.6.0
+ *
+ * @param int $object_id The ID of the object to which the terms will be added.
+ * @param 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
+ */
+function wp_add_object_terms( $object_id, $terms, $taxonomy ) {
+ return wp_set_object_terms( $object_id, $terms, $taxonomy, true );
+}
+
+/**
+ * Remove term(s) associated with a given object.
+ *
+ * @since 3.6.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int $object_id The ID of the object from which the terms will be removed.
+ * @param 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 ) {
+ global $wpdb;
+
+ $object_id = (int) $object_id;
+
+ if ( ! taxonomy_exists( $taxonomy ) ) {
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid Taxonomy' ) );
+ }
+
+ if ( ! is_array( $terms ) ) {
+ $terms = array( $terms );
+ }
+
+ $tt_ids = array();
+
+ foreach ( (array) $terms as $term ) {
+ if ( ! strlen( trim( $term ) ) ) {
+ continue;
+ }
+
+ if ( ! $term_info = term_exists( $term, $taxonomy ) ) {
+ // Skip if a non-existent term ID is passed.
+ if ( is_int( $term ) ) {
+ continue;
+ }
+ }
+
+ if ( is_wp_error( $term_info ) ) {
+ return $term_info;
+ }
+
+ $tt_ids[] = $term_info['term_taxonomy_id'];
}
- do_action('set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids);
- return $tt_ids;
+ if ( $tt_ids ) {
+ $in_tt_ids = "'" . implode( "', '", $tt_ids ) . "'";
+
+ /**
+ * Fires immediately before an object-term relationship is deleted.
+ *
+ * @since 2.9.0
+ *
+ * @param int $object_id Object ID.
+ * @param array $tt_ids An array of term taxonomy IDs.
+ */
+ 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 ) );
+
+ /**
+ * Fires immediately after an object-term relationship is deleted.
+ *
+ * @since 2.9.0
+ *
+ * @param int $object_id Object ID.
+ * @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;
+ }
+
+ return false;
}
/**
*
* The only purpose for $term is for appending a parent, if one exists.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @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
if ( ! term_exists( $slug ) )
return $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 $slug;
+ }
+
// If the taxonomy supports hierarchy and the term has a parent, make the slug unique
// by incorporating parent slugs.
if ( is_taxonomy_hierarchical($term->taxonomy) && !empty($term->parent) ) {
}
// If we didn't get a unique slug, try appending a number to make it unique.
- if ( !empty($args['term_id']) )
- $query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $args['term_id'] );
+ 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 );
* For what can be overrode in $args, check the term scheme can contain and stay
* away from the term keys.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses $wpdb
- * @uses do_action() Will call both 'edit_term' and 'edit_$taxonomy' twice.
- * @uses apply_filters() Will call the 'term_id_filter' filter and pass the term
- * id and taxonomy id.
+ * @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.
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, ARRAY_A );
- if ( is_wp_error( $term ) )
+ if ( is_wp_error( $term ) ) {
return $term;
+ }
+
+ if ( ! $term ) {
+ return new WP_Error( 'invalid_term', __( 'Empty Term' ) );
+ }
// Escape data pulled from DB.
- $term = add_magic_quotes($term);
+ $term = wp_slash($term);
// Merge old and new args with new args overwriting old ones.
$args = array_merge($term, $args);
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
$args = wp_parse_args($args, $defaults);
$args = sanitize_term($args, $taxonomy, 'db');
- extract($args, EXTR_SKIP);
+ $parsed_args = $args;
// expected_slashed ($name)
- $name = stripslashes($name);
- $description = stripslashes($description);
+ $name = wp_unslash( $args['name'] );
+ $description = wp_unslash( $args['description'] );
+
+ $parsed_args['name'] = $name;
+ $parsed_args['description'] = $description;
if ( '' == trim($name) )
return new WP_Error('empty_term_name', __('A name is required for this term'));
+ if ( $parsed_args['parent'] > 0 && ! term_exists( (int) $parsed_args['parent'] ) ) {
+ return new WP_Error( 'missing_parent', __( 'Parent term does not exist.' ) );
+ }
+
$empty_slug = false;
- if ( empty($slug) ) {
+ if ( empty( $args['slug'] ) ) {
$empty_slug = true;
$slug = sanitize_title($name);
+ } else {
+ $slug = $args['slug'];
}
- if ( $alias_of ) {
- $alias = $wpdb->get_row( $wpdb->prepare( "SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $alias_of) );
- if ( $alias->term_group ) {
+ $parsed_args['slug'] = $slug;
+
+ $term_group = isset( $parsed_args['term_group'] ) ? $parsed_args['term_group'] : 0;
+ if ( $args['alias_of'] ) {
+ $alias = get_term_by( 'slug', $args['alias_of'], $taxonomy );
+ if ( ! empty( $alias->term_group ) ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias->term_group;
- } else {
- // The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
+ } elseif ( ! empty( $alias->term_id ) ) {
+ /*
+ * The alias is not in a group, so we create a new one
+ * and add the alias to it.
+ */
$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1;
- do_action( 'edit_terms', $alias->term_id );
- $wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) );
- do_action( 'edited_terms', $alias->term_id );
+
+ wp_update_term( $alias->term_id, $taxonomy, array(
+ 'term_group' => $term_group,
+ ) );
}
+
+ $parsed_args['term_group'] = $term_group;
}
- // Check $parent to see if it will cause a hierarchy loop
- $parent = apply_filters( 'wp_update_term_parent', $parent, $term_id, $taxonomy, compact( array_keys( $args ) ), $args );
+ /**
+ * Filter the term parent.
+ *
+ * Hook to this filter to see if it will cause a hierarchy loop.
+ *
+ * @since 3.1.0
+ *
+ * @param int $parent ID of the parent term.
+ * @param int $term_id Term ID.
+ * @param string $taxonomy Taxonomy slug.
+ * @param array $parsed_args An array of potentially altered update arguments for the given term.
+ * @param array $args An array of update arguments for the given term.
+ */
+ $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']) )
else
return new WP_Error('duplicate_term_slug', sprintf(__('The slug “%s” is already in use by another term'), $slug));
}
- do_action( 'edit_terms', $term_id );
+
+ $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) );
+
+ // Check whether this is a shared term that needs splitting.
+ $_term_id = _split_shared_term( $term_id, $tt_id );
+ if ( ! is_wp_error( $_term_id ) ) {
+ $term_id = $_term_id;
+ }
+
+ /**
+ * Fires immediately before the given terms are edited.
+ *
+ * @since 2.9.0
+ *
+ * @param int $term_id Term ID.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ do_action( 'edit_terms', $term_id, $taxonomy );
$wpdb->update($wpdb->terms, compact( 'name', 'slug', 'term_group' ), compact( 'term_id' ) );
if ( empty($slug) ) {
$slug = sanitize_title($name, $term_id);
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
}
- do_action( 'edited_terms', $term_id );
- $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) );
+ /**
+ * Fires immediately after the given terms are edited.
+ *
+ * @since 2.9.0
+ *
+ * @param int $term_id Term ID
+ * @param string $taxonomy Taxonomy slug.
+ */
+ do_action( 'edited_terms', $term_id, $taxonomy );
+
+ /**
+ * Fires immediate before a term-taxonomy relationship is updated.
+ *
+ * @since 2.9.0
+ *
+ * @param int $tt_id Term taxonomy ID.
+ * @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 ) );
+
+ /**
+ * Fires immediately after a term-taxonomy relationship is updated.
+ *
+ * @since 2.9.0
+ *
+ * @param int $tt_id Term taxonomy ID.
+ * @param string $taxonomy Taxonomy slug.
+ */
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy );
- do_action("edit_term", $term_id, $tt_id, $taxonomy);
- do_action("edit_$taxonomy", $term_id, $tt_id);
+ // 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 ) {
+ clean_object_term_cache( $objects, $object_type );
+ }
+
+ /**
+ * Fires after a term has been updated, but before 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( "edit_term", $term_id, $tt_id, $taxonomy );
+
+ /**
+ * Fires after a term in a specific taxonomy has been updated, but before the term
+ * cache has been cleaned.
+ *
+ * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
+ do_action( "edit_$taxonomy", $term_id, $tt_id );
- $term_id = apply_filters('term_id_filter', $term_id, $tt_id);
+ /** This filter is documented in wp-includes/taxonomy.php */
+ $term_id = apply_filters( 'term_id_filter', $term_id, $tt_id );
clean_term_cache($term_id, $taxonomy);
- do_action("edited_term", $term_id, $tt_id, $taxonomy);
- do_action("edited_$taxonomy", $term_id, $tt_id);
+ /**
+ * Fires after a term has been updated, and 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( "edited_term", $term_id, $tt_id, $taxonomy );
+
+ /**
+ * Fires after a term for a specific taxonomy has been updated, and the term
+ * cache has been cleaned.
+ *
+ * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
+ *
+ * @since 2.3.0
+ *
+ * @param int $term_id Term ID.
+ * @param int $tt_id Term taxonomy ID.
+ */
+ do_action( "edited_$taxonomy", $term_id, $tt_id );
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
}
* The default action is to count what the amount of terms have the relationship
* of term ID. Once that is done, then update the database.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|array $terms The term_taxonomy_id of the terms
* @param string $taxonomy The context of the term.
* @return bool Always true when complete.
*/
function wp_update_term_count_now( $terms, $taxonomy ) {
- global $wpdb;
-
$terms = array_map('intval', $terms);
$taxonomy = get_taxonomy($taxonomy);
* term IDs have to exist within the taxonomy $object_type for the deletion to
* take place.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
* @see get_object_taxonomies() for more on $object_type
- * @uses do_action() Will call action hook named, 'clean_object_term_cache' after completion.
- * Passes, function params in same order.
*
* @param int|array $object_ids Single or list of term object ID(s)
* @param array|string $object_type The taxonomy object type
if ( !is_array($object_ids) )
$object_ids = array($object_ids);
- foreach ( $object_ids as $id )
- foreach ( get_object_taxonomies($object_type) as $taxonomy )
+ $taxonomies = get_object_taxonomies( $object_type );
+
+ foreach ( $object_ids as $id ) {
+ foreach ( $taxonomies as $taxonomy ) {
wp_cache_delete($id, "{$taxonomy}_relationships");
+ }
+ }
- do_action('clean_object_term_cache', $object_ids, $object_type);
+ /**
+ * Fires after the object term cache has been cleaned.
+ *
+ * @since 2.5.0
+ *
+ * @param array $object_ids An array of object IDs.
+ * @param string $objet_type Object type.
+ */
+ do_action( 'clean_object_term_cache', $object_ids, $object_type );
}
/**
* Will remove all of the term ids from the cache.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|array $ids Single or list of Term IDs
* @param string $taxonomy Can be empty and will assume tt_ids, else will use for context.
*/
function clean_term_cache($ids, $taxonomy = '', $clean_taxonomy = true) {
global $wpdb;
- static $cleaned = array();
if ( !is_array($ids) )
$ids = array($ids);
}
foreach ( $taxonomies as $taxonomy ) {
- if ( isset($cleaned[$taxonomy]) )
- continue;
- $cleaned[$taxonomy] = true;
-
if ( $clean_taxonomy ) {
wp_cache_delete('all_ids', $taxonomy);
wp_cache_delete('get', $taxonomy);
_get_term_hierarchy($taxonomy);
}
- do_action('clean_term_cache', $ids, $taxonomy);
+ /**
+ * Fires once after each taxonomy's term cache has been cleaned.
+ *
+ * @since 2.5.0
+ *
+ * @param array $ids An array of term IDs.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ do_action( 'clean_term_cache', $ids, $taxonomy );
}
- wp_cache_set('last_changed', time(), 'terms');
+ wp_cache_set( 'last_changed', microtime(), 'terms' );
}
/**
* Retrieves the taxonomy relationship to the term object id.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
- * @uses wp_cache_get() Retrieves taxonomy relationship from cache
- *
- * @param int|array $id Term object ID
+ * @param int $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 $id.
*/
-function &get_object_term_cache($id, $taxonomy) {
+function get_object_term_cache($id, $taxonomy) {
$cache = wp_cache_get($id, "{$taxonomy}_relationships");
return $cache;
}
/**
- * 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.
+ * Caches will only be updated for terms not already cached.
*
- * 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.
- *
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
- * @uses wp_get_object_terms() Used to get terms from the database to update
*
- * @param string|array $object_ids Single or list of term object ID(s)
- * @param array|string $object_type The taxonomy object type
- * @return null|bool 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 $object_type The taxonomy object type.
+ * @return null|false Null if `$object_ids` is empty, false if all of the terms in
+ * `$object_ids` are already cached.
*/
function update_object_term_cache($object_ids, $object_type) {
if ( empty($object_ids) )
$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 ) {
/**
* Updates Terms to Taxonomy in cache.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 2.3.0
*
* @param array $terms List of Term objects to change
if ( empty($term_taxonomy) )
$term_taxonomy = $term->taxonomy;
- wp_cache_add($term->term_id, $term, $term_taxonomy);
+ wp_cache_add( $term->term_id, $term, $term_taxonomy );
}
}
/**
* Retrieves children of taxonomy as Term IDs.
*
- * @package WordPress
- * @subpackage Taxonomy
* @access private
* @since 2.3.0
*
- * @uses update_option() Stores all of the children in "$taxonomy_children"
- * option. That is the name of the taxonomy, immediately followed by '_children'.
- *
* @param string $taxonomy Taxonomy Name
* @return array Empty if $taxonomy isn't hierarchical or returns children as Term 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.
*
- * @package WordPress
- * @subpackage Taxonomy
* @access private
* @since 2.3.0
*
* @param int $term_id The ancestor term: all returned terms should be descendants of $term_id.
- * @param array $terms The set of terms---either an array of term objects or term IDs---from which those that are descendants of $term_id will be chosen.
- * @param string $taxonomy The taxonomy which determines the hierarchy of the terms.
+ * @param array $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 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.
* @return array 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 ( $term->parent == $term_id ) {
if ( $use_id )
if ( !isset($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);
}
}
* Recalculates term counts by including items from child terms. Assumes all
* relevant children are already in the $terms argument.
*
- * @package WordPress
- * @subpackage Taxonomy
* @access private
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $terms List of Term IDs
* @param string $taxonomy Term Context
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];
// 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;
+ }
}
}
* Private function for the default callback for post_tag and category
* taxonomies.
*
- * @package WordPress
- * @subpackage Taxonomy
* @access private
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $terms List of Term taxonomy IDs
* @param object $taxonomy Current taxonomy object of terms
if ( $object_types )
$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 ) );
- do_action( 'edit_term_taxonomy', $term, $taxonomy );
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
- do_action( 'edited_term_taxonomy', $term, $taxonomy );
+
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
*
* Default callback for the link_category taxonomy.
*
- * @package WordPress
- * @subpackage Taxonomy
* @since 3.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $terms List of Term taxonomy IDs
* @param object $taxonomy Current taxonomy object of terms
foreach ( (array) $terms as $term ) {
$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term ) );
- do_action( 'edit_term_taxonomy', $term, $taxonomy );
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
- do_action( 'edited_term_taxonomy', $term, $taxonomy );
+
+ /** This action is documented in wp-includes/taxonomy.php */
+ do_action( 'edited_term_taxonomy', $term, $taxonomy->name );
}
}
/**
- * Generates a permalink for a taxonomy term archive.
+ * Create a new term for a term_taxonomy item that currently shares its term with another term_taxonomy.
*
- * @since 2.5.0
+ * @ignore
+ * @since 4.2.0
+ *
+ * @param int $term_id ID of the shared term.
+ * @param int $term_taxonomy_id ID of the term_taxonomy item to receive a new term.
+ * @return int|WP_Error When the current term does not need to be split (or cannot be split on the current
+ * database schema), `$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 ) {
+ global $wpdb;
+
+ // Don't try to split terms if database schema does not support shared slugs.
+ $current_db_version = get_option( 'db_version' );
+ if ( $current_db_version < 30133 ) {
+ return $term_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;
+ }
+
+ // Pull up data about the currently shared slug, which we'll use to populate the new one.
+ $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.
+ $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 taxonomy = %s AND parent = %d", $term_taxonomy->taxonomy, $term_id ) );
+
+ 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()}.
+ $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 );
+
+ /**
+ * 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;
+}
+
+/**
+ * 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
+ *
+ * @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 );
+ }
+ }
+}
+
+/**
+ * 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 bool|int 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;
+}
+
+/**
+ * Generate a permalink for a taxonomy term archive.
*
- * @uses apply_filters() Calls 'term_link' with term link and term object, and taxonomy parameters.
- * @uses apply_filters() For the post_tag Taxonomy, Calls 'tag_link' with tag link and tag ID as parameters.
- * @uses apply_filters() For the category Taxonomy, Calls 'category_link' filter on category link and category ID.
+ * @since 2.5.0
*
- * @param object|int|string $term
- * @param string $taxonomy (optional if $term is object)
+ * @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, $taxonomy = '') {
if ( !is_object($term) ) {
if ( is_int($term) ) {
- $term = &get_term($term, $taxonomy);
+ $term = get_term($term, $taxonomy);
} else {
- $term = &get_term_by('slug', $term, $taxonomy);
+ $term = get_term_by('slug', $term, $taxonomy);
}
}
} else {
if ( $t->rewrite['hierarchical'] ) {
$hierarchical_slugs = array();
- $ancestors = get_ancestors($term->term_id, $taxonomy);
+ $ancestors = get_ancestors( $term->term_id, $taxonomy, 'taxonomy' );
foreach ( (array)$ancestors as $ancestor ) {
$ancestor_term = get_term($ancestor, $taxonomy);
$hierarchical_slugs[] = $ancestor_term->slug;
$termlink = home_url( user_trailingslashit($termlink, 'category') );
}
// Back Compat filters.
- if ( 'post_tag' == $taxonomy )
+ if ( 'post_tag' == $taxonomy ) {
+
+ /**
+ * Filter the tag link.
+ *
+ * @since 2.3.0
+ * @deprecated 2.5.0 Use 'term_link' instead.
+ *
+ * @param string $termlink Tag link URL.
+ * @param int $term_id Term ID.
+ */
$termlink = apply_filters( 'tag_link', $termlink, $term->term_id );
- elseif ( 'category' == $taxonomy )
+ } elseif ( 'category' == $taxonomy ) {
+
+ /**
+ * Filter the category link.
+ *
+ * @since 1.5.0
+ * @deprecated 2.5.0 Use 'term_link' instead.
+ *
+ * @param string $termlink Category link URL.
+ * @param int $term_id Term ID.
+ */
$termlink = apply_filters( 'category_link', $termlink, $term->term_id );
+ }
- return apply_filters('term_link', $termlink, $term, $taxonomy);
+ /**
+ * Filter the term link.
+ *
+ * @since 2.5.0
+ *
+ * @param string $termlink Term link URL.
+ * @param object $term Term object.
+ * @param string $taxonomy Taxonomy slug.
+ */
+ return apply_filters( 'term_link', $termlink, $term, $taxonomy );
}
/**
* post without specifying the Post ID. You can also use it outside the Loop to
* display the taxonomies for a specific post.
*
- * The available defaults are:
- * 'post' : default is 0. The post ID to get taxonomies of.
- * 'before' : default is empty string. Display before taxonomies list.
- * 'sep' : default is empty string. Separate every taxonomy with value in this.
- * 'after' : default is empty string. Display this after the taxonomies list.
- * 'template' : The template to use for displaying the taxonomy terms.
- *
* @since 2.5.0
- * @uses get_the_taxonomies()
*
- * @param array $args Override the defaults.
+ * @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.
+ *
+ * @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()) {
+function the_taxonomies( $args = array() ) {
$defaults = array(
'post' => 0,
'before' => '',
'sep' => ' ',
'after' => '',
- 'template' => '%s: %l.'
);
$r = wp_parse_args( $args, $defaults );
- extract( $r, EXTR_SKIP );
- echo $before . join($sep, get_the_taxonomies($post, $r)) . $after;
+ echo $r['before'] . join( $r['sep'], get_the_taxonomies( $r['post'], $r ) ) . $r['after'];
}
/**
*
* @since 2.5.0
*
- * @param int $post Optional. Post ID or will use Global Post ID (in loop).
- * @param array $args Override the defaults.
- * @return 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.
+ *
+ * @type string $template Template for displaying a taxonomy label and list of terms.
+ * Default is "Label: Terms."
+ * @type string $term_template Template for displaying a single term in the list. Default is the term name
+ * linked to its archive.
+ * }
+ * @return array List of taxonomies.
*/
-function get_the_taxonomies($post = 0, $args = array() ) {
- if ( is_int($post) )
- $post =& get_post($post);
- elseif ( !is_object($post) )
- $post =& $GLOBALS['post'];
+function get_the_taxonomies( $post = 0, $args = array() ) {
+ $post = get_post( $post );
$args = wp_parse_args( $args, array(
- 'template' => '%s: %l.',
+ /* translators: %s: taxonomy label, %l: list of terms formatted as per $term_template */
+ 'template' => __( '%s: %l.' ),
+ 'term_template' => '<a href="%1$s">%2$s</a>',
) );
- extract( $args, EXTR_SKIP );
$taxonomies = array();
- if ( !$post )
+ if ( ! $post ) {
return $taxonomies;
+ }
- foreach ( get_object_taxonomies($post) as $taxonomy ) {
- $t = (array) get_taxonomy($taxonomy);
- if ( empty($t['label']) )
+ foreach ( get_object_taxonomies( $post ) as $taxonomy ) {
+ $t = (array) get_taxonomy( $taxonomy );
+ if ( empty( $t['label'] ) ) {
$t['label'] = $taxonomy;
- if ( empty($t['args']) )
+ }
+ if ( empty( $t['args'] ) ) {
$t['args'] = array();
- if ( empty($t['template']) )
- $t['template'] = $template;
-
- $terms = get_object_term_cache($post->ID, $taxonomy);
- if ( empty($terms) )
- $terms = wp_get_object_terms($post->ID, $taxonomy, $t['args']);
+ }
+ if ( empty( $t['template'] ) ) {
+ $t['template'] = $args['template'];
+ }
+ if ( empty( $t['term_template'] ) ) {
+ $t['term_template'] = $args['term_template'];
+ }
+ $terms = get_object_term_cache( $post->ID, $taxonomy );
+ if ( false === $terms ) {
+ $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
+ }
$links = array();
- foreach ( $terms as $term )
- $links[] = "<a href='" . esc_attr( get_term_link($term) ) . "'>$term->name</a>";
-
- if ( $links )
- $taxonomies[$taxonomy] = wp_sprintf($t['template'], $t['label'], $links, $terms);
+ foreach ( $terms as $term ) {
+ $links[] = wp_sprintf( $t['term_template'], esc_attr( get_term_link( $term ) ), $term->name );
+ }
+ if ( $links ) {
+ $taxonomies[$taxonomy] = wp_sprintf( $t['template'], $t['label'], $links, $terms );
+ }
}
return $taxonomies;
}
* Retrieve all taxonomies of a post with just the names.
*
* @since 2.5.0
- * @uses get_object_taxonomies()
*
- * @param int $post Optional. Post ID
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return array
*/
-function get_post_taxonomies($post = 0) {
- $post =& get_post($post);
+function get_post_taxonomies( $post = 0 ) {
+ $post = get_post( $post );
return get_object_taxonomies($post);
}
* If no terms are given, determines if object is associated with any terms in the given taxonomy.
*
* @since 2.7.0
- * @uses get_object_term_cache()
- * @uses wp_get_object_terms()
*
* @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.
+ * @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 ( empty( $object_terms ) )
+ if ( false === $object_terms )
$object_terms = wp_get_object_terms( $object_id, $taxonomy );
if ( is_wp_error( $object_terms ) )
$strs =& $terms;
foreach ( $object_terms as $object_term ) {
- if ( $ints && in_array( $object_term->term_id, $ints ) ) return true; // If int, check against term_id
+ // If term is an int, check against term_ids only.
+ if ( $ints && in_array( $object_term->term_id, $ints ) ) {
+ return true;
+ }
+
if ( $strs ) {
- if ( in_array( $object_term->term_id, $strs ) ) return true;
- if ( in_array( $object_term->name, $strs ) ) return true;
- if ( in_array( $object_term->slug, $strs ) ) return true;
+ // Only check numeric strings against term_id, to avoid false matches due to type juggling.
+ $numeric_strs = array_map( 'intval', array_filter( $strs, 'is_numeric' ) );
+ if ( in_array( $object_term->term_id, $numeric_strs, true ) ) {
+ return true;
+ }
+
+ if ( in_array( $object_term->name, $strs ) ) return true;
+ if ( in_array( $object_term->slug, $strs ) ) return true;
}
}
* Determine if the given object type is associated with the given taxonomy.
*
* @since 3.0.0
- * @uses get_object_taxonomies()
*
* @param string $object_type Object type string
* @param string $taxonomy Single taxonomy name
/**
* Get an array of ancestor IDs for a given object.
*
- * @param int $object_id The ID of the object
- * @param string $object_type The type of object for which we'll be retrieving ancestors.
- * @return array of ancestors from lowest to highest in the hierarchy.
+ * @since 3.1.0
+ * @since 4.1.0 Introduced the `$resource_type` argument.
+ *
+ * @param int $object_id Optional. The ID of the object. Default 0.
+ * @param string $object_type Optional. The type of object for which we'll be retrieving
+ * ancestors. Accepts a post type or a taxonomy name. Default empty.
+ * @param string $resource_type Optional. Type of resource $object_type is. Accepts 'post_type'
+ * or 'taxonomy'. Default empty.
+ * @return array An array of ancestors from lowest to highest in the hierarchy.
*/
-function get_ancestors($object_id = 0, $object_type = '') {
+function get_ancestors( $object_id = 0, $object_type = '', $resource_type = '' ) {
$object_id = (int) $object_id;
$ancestors = array();
if ( empty( $object_id ) ) {
- return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
+
+ /** This filter is documented in wp-includes/taxonomy.php */
+ return apply_filters( 'get_ancestors', $ancestors, $object_id, $object_type, $resource_type );
+ }
+
+ if ( ! $resource_type ) {
+ if ( is_taxonomy_hierarchical( $object_type ) ) {
+ $resource_type = 'taxonomy';
+ } elseif ( post_type_exists( $object_type ) ) {
+ $resource_type = 'post_type';
+ }
}
- if ( is_taxonomy_hierarchical( $object_type ) ) {
+ if ( 'taxonomy' === $resource_type ) {
$term = get_term($object_id, $object_type);
while ( ! is_wp_error($term) && ! empty( $term->parent ) && ! in_array( $term->parent, $ancestors ) ) {
$ancestors[] = (int) $term->parent;
$term = get_term($term->parent, $object_type);
}
- } elseif ( null !== get_post_type_object( $object_type ) ) {
- $object = get_post($object_id);
- if ( ! is_wp_error( $object ) && isset( $object->ancestors ) && is_array( $object->ancestors ) )
- $ancestors = $object->ancestors;
- else {
- while ( ! is_wp_error($object) && ! empty( $object->post_parent ) && ! in_array( $object->post_parent, $ancestors ) ) {
- $ancestors[] = (int) $object->post_parent;
- $object = get_post($object->post_parent);
- }
- }
+ } elseif ( 'post_type' === $resource_type ) {
+ $ancestors = get_post_ancestors($object_id);
}
- return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
+ /**
+ * Filter a given object's ancestors.
+ *
+ * @since 3.1.0
+ * @since 4.1.0 Introduced the `$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, $resource_type );
}
/**
* Attached to the wp_update_term_parent filter.
*
* @since 3.1.0
- * @uses wp_find_hierarchy_loop()
*
* @param int $parent term_id of the parent for the term we're checking.
* @param int $term_id The term we're checking.
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff