cbfb5d78b5
git-svn-id: https://develop.svn.wordpress.org/trunk@7491 602fd350-edb4-49c9-b593-d223f7449a82
1903 lines
62 KiB
PHP
1903 lines
62 KiB
PHP
<?php
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/**
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*/
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//
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// Taxonomy Registration
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//
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/**
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* Default Taxonomy Objects
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* @since 2.3
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* @global array $wp_taxonomies
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*/
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$wp_taxonomies = array();
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$wp_taxonomies['category'] = (object) array('name' => 'category', 'object_type' => 'post', 'hierarchical' => true, 'update_count_callback' => '_update_post_term_count');
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$wp_taxonomies['post_tag'] = (object) array('name' => 'post_tag', 'object_type' => 'post', 'hierarchical' => false, 'update_count_callback' => '_update_post_term_count');
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$wp_taxonomies['link_category'] = (object) array('name' => 'link_category', 'object_type' => 'link', 'hierarchical' => false);
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/**
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* get_object_taxonomies() - Return all of the taxonomy names that are of $object_type
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*
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* It appears that this function can be used to find all of the names inside of
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* $wp_taxonomies global variable.
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*
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* <code><?php $taxonomies = get_object_taxonomies('post'); ?></code>
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* Should result in <code>Array('category', 'post_tag')</code>
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wp_taxonomies
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*
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* @param string $object_type Name of the type of taxonomy object
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* @return array The names of all taxonomy of $object_type.
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*/
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function get_object_taxonomies($object_type) {
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global $wp_taxonomies;
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$taxonomies = array();
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foreach ( $wp_taxonomies as $taxonomy ) {
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if ( $object_type === $taxonomy->object_type )
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$taxonomies[] = $taxonomy->name;
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}
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return $taxonomies;
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}
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/**
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* get_taxonomy() - Returns the taxonomy object of $taxonomy.
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*
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* The get_taxonomy function will first check that the parameter string given
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* is a taxonomy object and if it is, it will return it.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wp_taxonomies
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* @uses is_taxonomy() Checks whether taxonomy exists
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*
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* @param string $taxonomy Name of taxonomy object to return
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* @return object|bool The Taxonomy Object or false if $taxonomy doesn't exist
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*/
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function get_taxonomy( $taxonomy ) {
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global $wp_taxonomies;
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if ( ! is_taxonomy($taxonomy) )
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return false;
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return $wp_taxonomies[$taxonomy];
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}
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/**
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* is_taxonomy() - Checks that the taxonomy name exists
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wp_taxonomies
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*
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* @param string $taxonomy Name of taxonomy object
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* @return bool Whether the taxonomy exists or not.
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*/
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function is_taxonomy( $taxonomy ) {
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global $wp_taxonomies;
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return isset($wp_taxonomies[$taxonomy]);
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}
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/**
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* is_taxonomy_hierarchical() - Whether the taxonomy object is hierarchical
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*
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* Checks to make sure that the taxonomy is an object first. Then Gets the object, and finally
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* returns the hierarchical value in the object.
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*
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* A false return value might also mean that the taxonomy does not exist.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses is_taxonomy() Checks whether taxonomy exists
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* @uses get_taxonomy() Used to get the taxonomy object
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*
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* @param string $taxonomy Name of taxonomy object
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* @return bool Whether the taxonomy is hierarchical
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*/
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function is_taxonomy_hierarchical($taxonomy) {
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if ( ! is_taxonomy($taxonomy) )
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return false;
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$taxonomy = get_taxonomy($taxonomy);
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return $taxonomy->hierarchical;
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}
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/**
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* register_taxonomy() - Create or modify a taxonomy object.
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*
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* A simple function for creating or modifying a taxonomy object based on the parameters given.
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* The function will accept an array (third optional parameter), along with strings for the
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* taxonomy name and another string for the object type.
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*
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* The function keeps a default set, allowing for the $args to be optional but allow the other
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* functions to still work. It is possible to overwrite the default set, which contains two
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* keys: hierarchical and update_count_callback.
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*
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* Nothing is returned, so expect error maybe or use is_taxonomy() to check whether taxonomy exists.
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*
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* Optional $args contents:
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* hierarachical - has some defined purpose at other parts of the API and is a boolean value.
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* update_count_callback - works much like a hook, in that it will be called when the count is updated.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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* @uses $wp_taxonomies Inserts new taxonomy object into the list
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*
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* @param string $taxonomy Name of taxonomy object
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* @param string $object_type Name of the object type for the taxonomy object.
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* @param array|string $args See above description for the two keys values.
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*/
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function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
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global $wp_taxonomies, $wp_rewrite;
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$defaults = array('hierarchical' => false, 'update_count_callback' => '');
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$args = wp_parse_args($args, $defaults);
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if ( !empty( $args['rewrite'] ) ) {
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if ( !is_array($args['rewrite']) )
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$args['rewrite'] = array();
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if ( !isset($args['rewrite']['slug']) )
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$args['rewrite']['slug'] = sanitize_title_with_dashes($taxonomy);
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$wp_rewrite->add_rewrite_tag("%$taxonomy%", '([^/]+)', "taxonomy=$taxonomy&term=");
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$wp_rewrite->add_permastruct("{$args['rewrite']['slug']}/%$taxonomy%");
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}
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$args['name'] = $taxonomy;
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$args['object_type'] = $object_type;
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$wp_taxonomies[$taxonomy] = (object) $args;
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}
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//
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// Term API
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//
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/**
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* get_objects_in_term() - Return object_ids of valid taxonomy and term
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*
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* The strings of $taxonomies must exist before this function will continue. On failure of finding
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* a valid taxonomy, it will return an WP_Error class, kind of like Exceptions in PHP 5, except you
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* can't catch them. Even so, you can still test for the WP_Error class and get the error message.
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*
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* The $terms aren't checked the same as $taxonomies, but still need to exist for $object_ids to
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* be returned.
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*
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* It is possible to change the order that object_ids is returned by either using PHP sort family
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* functions or using the database by using $args with either ASC or DESC array. The value should
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* be in the key named 'order'.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wpdb
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* @uses wp_parse_args() Creates an array from string $args.
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*
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* @param string|array $terms String of term or array of string values of terms that will be used
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* @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names
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* @param array|string $args Change the order of the object_ids, either ASC or DESC
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* @return WP_Error|array If the taxonomy does not exist, then WP_Error will be returned. On success
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* the array can be empty meaning that there are no $object_ids found or it will return the $object_ids found.
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*/
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function get_objects_in_term( $terms, $taxonomies, $args = array() ) {
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global $wpdb;
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if ( !is_array( $terms) )
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$terms = array($terms);
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if ( !is_array($taxonomies) )
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$taxonomies = array($taxonomies);
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foreach ( $taxonomies as $taxonomy ) {
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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}
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$defaults = array('order' => 'ASC');
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$args = wp_parse_args( $args, $defaults );
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extract($args, EXTR_SKIP);
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$order = ( 'desc' == strtolower($order) ) ? 'DESC' : 'ASC';
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$terms = array_map('intval', $terms);
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$taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$terms = "'" . implode("', '", $terms) . "'";
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$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 ($terms) ORDER BY tr.object_id $order");
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if ( ! $object_ids )
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return array();
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return $object_ids;
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}
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/**
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* get_term() - Get all Term data from database by Term ID.
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*
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* The usage of the get_term function is to apply filters to a term object.
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* It is possible to get a term object from the database before applying the
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* filters.
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*
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* $term ID must be part of $taxonomy, to get from the database. Failure, might be
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* able to be captured by the hooks. Failure would be the same value as $wpdb returns for the
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* get_row method.
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*
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* There are two hooks, one is specifically for each term, named 'get_term', and the second is
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* for the taxonomy name, 'term_$taxonomy'. Both hooks gets the term object, and the taxonomy
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* name as parameters. Both hooks are expected to return a Term object.
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*
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* 'get_term' hook - Takes two parameters the term Object and the taxonomy name. Must return
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* term object. Used in get_term() as a catch-all filter for every $term.
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*
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* 'get_$taxonomy' hook - Takes two parameters the term Object and the taxonomy name. Must return
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* term object. $taxonomy will be the taxonomy name, so for example, if 'category', it would be
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* 'get_category' as the filter name. Useful for custom taxonomies or plugging into default taxonomies.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wpdb
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* @uses sanitize_term() Cleanses the term based on $filter context before returning.
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* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
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*
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* @param int|object $term If integer, will get from database. If object will apply filters and return $term.
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* @param string $taxonomy Taxonomy name that $term is part of.
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* @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
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* @param string $filter Optional, default is raw or no WordPress defined filter will applied.
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* @return mixed|null|WP_Error Term Row from database. Will return null if $term is empty. If taxonomy does not
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* exist then WP_Error will be returned.
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*/
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function &get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
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global $wpdb;
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if ( empty($term) )
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return null;
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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if ( is_object($term) ) {
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wp_cache_add($term->term_id, $term, $taxonomy);
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$_term = $term;
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} else {
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$term = (int) $term;
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if ( ! $_term = wp_cache_get($term, $taxonomy) ) {
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$_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 = %s LIMIT 1", $taxonomy, $term) );
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wp_cache_add($term, $_term, $taxonomy);
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}
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}
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$_term = apply_filters('get_term', $_term, $taxonomy);
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$_term = apply_filters("get_$taxonomy", $_term, $taxonomy);
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$_term = sanitize_term($_term, $taxonomy, $filter);
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if ( $output == OBJECT ) {
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return $_term;
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($_term);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($_term));
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} else {
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return $_term;
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}
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}
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/**
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* get_term_by() - Get all Term data from database by Term field and data.
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*
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* Warning: $value is not escaped for 'name' $field. You must do it yourself, if required.
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*
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* The default $field is 'id', therefore it is possible to also use null for field, but not
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* recommended that you do so.
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*
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* If $value does not exist, the return value will be false. If $taxonomy exists and $field
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* and $value combinations exist, the Term will be returned.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wpdb
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* @uses sanitize_term() Cleanses the term based on $filter context before returning.
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* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
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*
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* @param string $field Either 'slug', 'name', or 'id'
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* @param string|int $value Search for this term value
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* @param string $taxonomy Taxonomy Name
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* @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
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* @param string $filter Optional, default is raw or no WordPress defined filter will applied.
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* @return mixed Term Row from database. Will return false if $taxonomy does not exist or $term was not found.
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*/
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function get_term_by($field, $value, $taxonomy, $output = OBJECT, $filter = 'raw') {
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global $wpdb;
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if ( ! is_taxonomy($taxonomy) )
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return false;
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if ( 'slug' == $field ) {
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$field = 't.slug';
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$value = sanitize_title($value);
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if ( empty($value) )
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return false;
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} else if ( 'name' == $field ) {
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// Assume already escaped
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$field = 't.name';
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} else {
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$field = 't.term_id';
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$value = (int) $value;
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}
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$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, $value) );
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if ( !$term )
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return false;
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wp_cache_add($term->term_id, $term, $taxonomy);
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$term = sanitize_term($term, $taxonomy, $filter);
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if ( $output == OBJECT ) {
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return $term;
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($term);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($term));
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} else {
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return $term;
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}
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}
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/**
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* get_term_children() - Merge all term children into a single array.
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*
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* This recursive function will merge all of the children of $term into
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* the same array. Only useful for taxonomies which are hierarchical.
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*
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* Will return an empty array if $term does not exist in $taxonomy.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses $wpdb
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* @uses _get_term_hierarchy()
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* @uses get_term_children() Used to get the children of both $taxonomy and the parent $term
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*
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* @param string $term Name of Term to get children
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* @param string $taxonomy Taxonomy Name
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* @return array|WP_Error List of Term Objects. WP_Error returned if $taxonomy does not exist
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*/
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function get_term_children( $term, $taxonomy ) {
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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$terms = _get_term_hierarchy($taxonomy);
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if ( ! isset($terms[$term]) )
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return array();
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$children = $terms[$term];
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foreach ( $terms[$term] as $child ) {
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if ( isset($terms[$child]) )
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$children = array_merge($children, get_term_children($child, $taxonomy));
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}
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return $children;
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}
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/**
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* get_term_field() - Get sanitized Term field
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*
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* Does checks for $term, based on the $taxonomy. The function is for
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* contextual reasons and for simplicity of usage. See sanitize_term_field() for
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* more information.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses sanitize_term_field() Passes the return value in sanitize_term_field on success.
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*
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* @param string $field Term field to fetch
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* @param int $term Term ID
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* @param string $taxonomy Taxonomy Name
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* @param string $context Optional, default is display. Look at sanitize_term_field() for available options.
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* @return mixed Will return an empty string if $term is not an object or if $field is not set in $term.
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*/
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function get_term_field( $field, $term, $taxonomy, $context = 'display' ) {
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$term = (int) $term;
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$term = get_term( $term, $taxonomy );
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if ( is_wp_error($term) )
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return $term;
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if ( !is_object($term) )
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return '';
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if ( !isset($term->$field) )
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return '';
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return sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
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}
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/**
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* get_term_to_edit() - Sanitizes Term for editing
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*
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* Return value is sanitize_term() and usage is for sanitizing the term
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* for editing. Function is for contextual and simplicity.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3
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*
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* @uses sanitize_term() Passes the return value on success
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*
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* @param int|object $id Term ID or Object
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* @param string $taxonomy Taxonomy Name
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* @return mixed|null|WP_Error Will return empty string if $term is not an object.
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*/
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function get_term_to_edit( $id, $taxonomy ) {
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$term = get_term( $id, $taxonomy );
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if ( is_wp_error($term) )
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return $term;
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if ( !is_object($term) )
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return '';
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return sanitize_term($term, $taxonomy, 'edit');
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}
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/**
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* get_terms() - Retrieve the terms in taxonomy or list of taxonomies.
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*
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* You can fully inject any customizations to the query before it is sent, as well as control
|
|
* the output with a filter.
|
|
*
|
|
* The 'get_terms' filter will be called when the cache has the term and will pass the found
|
|
* term along with the array of $taxonomies and array of $args. This filter is also called
|
|
* before the array of terms is passed and will pass the array of terms, along with the $taxonomies
|
|
* and $args.
|
|
*
|
|
* The 'list_terms_exclusions' filter passes the compiled exclusions along with the $args.
|
|
*
|
|
* The list that $args can contain, which will overwrite the defaults.
|
|
* orderby - Default is 'name'. Can be name, count, or nothing (will use term_id).
|
|
* order - Default is ASC. Can use DESC.
|
|
* hide_empty - Default is true. Will not return empty $terms.
|
|
* fields - Default is all.
|
|
* slug - Any terms that has this value. Default is empty string.
|
|
* hierarchical - Whether to return hierarchical taxonomy. Default is true.
|
|
* name__like - Default is empty string.
|
|
*
|
|
* The argument 'pad_counts' will count all of the children along with the $terms.
|
|
*
|
|
* The 'get' argument allows for overwriting 'hide_empty' and 'child_of', which can be done by
|
|
* setting the value to 'all', instead of its default empty string value.
|
|
*
|
|
* The 'child_of' argument will be used if you use multiple taxonomy or the first $taxonomy
|
|
* isn't hierarchical or 'parent' isn't used. The default is 0, which will be translated to
|
|
* a false value. If 'child_of' is set, then 'child_of' value will be tested against
|
|
* $taxonomy to see if 'child_of' is contained within. Will return an empty array if test
|
|
* fails.
|
|
*
|
|
* If 'parent' is set, then it will be used to test against the first taxonomy. Much like
|
|
* 'child_of'. Will return an empty array if the test fails.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @uses $wpdb
|
|
* @uses wp_parse_args() Merges the defaults with those defined by $args and allows for strings.
|
|
*
|
|
*
|
|
* @param string|array 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 $taxonomies do not exist.
|
|
*/
|
|
function &get_terms($taxonomies, $args = '') {
|
|
global $wpdb;
|
|
$empty_array = array();
|
|
|
|
$single_taxonomy = false;
|
|
if ( !is_array($taxonomies) ) {
|
|
$single_taxonomy = true;
|
|
$taxonomies = array($taxonomies);
|
|
}
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
|
|
}
|
|
|
|
$in_taxonomies = "'" . implode("', '", $taxonomies) . "'";
|
|
|
|
$defaults = array('orderby' => 'name', 'order' => 'ASC',
|
|
'hide_empty' => true, 'exclude' => '', 'include' => '',
|
|
'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
|
|
'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '',
|
|
'pad_counts' => false, 'offset' => '', 'search' => '');
|
|
$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;
|
|
$args['hierarchical'] = false;
|
|
$args['pad_counts'] = false;
|
|
}
|
|
|
|
if ( 'all' == $args['get'] ) {
|
|
$args['child_of'] = 0;
|
|
$args['hide_empty'] = 0;
|
|
$args['hierarchical'] = false;
|
|
$args['pad_counts'] = false;
|
|
}
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( $child_of ) {
|
|
$hierarchy = _get_term_hierarchy($taxonomies[0]);
|
|
if ( !isset($hierarchy[$child_of]) )
|
|
return $empty_array;
|
|
}
|
|
|
|
if ( $parent ) {
|
|
$hierarchy = _get_term_hierarchy($taxonomies[0]);
|
|
if ( !isset($hierarchy[$parent]) )
|
|
return $empty_array;
|
|
}
|
|
|
|
$key = md5( serialize( $args ) . serialize( $taxonomies ) );
|
|
if ( $cache = wp_cache_get( 'get_terms', 'terms' ) ) {
|
|
if ( isset( $cache[ $key ] ) )
|
|
return apply_filters('get_terms', $cache[$key], $taxonomies, $args);
|
|
}
|
|
|
|
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
|
|
$orderby = 't.term_id';
|
|
|
|
$where = '';
|
|
$inclusions = '';
|
|
if ( !empty($include) ) {
|
|
$exclude = '';
|
|
$interms = preg_split('/[\s,]+/',$include);
|
|
if ( count($interms) ) {
|
|
foreach ( $interms as $interm ) {
|
|
if (empty($inclusions))
|
|
$inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
|
|
else
|
|
$inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( !empty($inclusions) )
|
|
$inclusions .= ')';
|
|
$where .= $inclusions;
|
|
|
|
$exclusions = '';
|
|
if ( !empty($exclude) ) {
|
|
$exterms = preg_split('/[\s,]+/',$exclude);
|
|
if ( count($exterms) ) {
|
|
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 .= ')';
|
|
$exclusions = apply_filters('list_terms_exclusions', $exclusions, $args );
|
|
$where .= $exclusions;
|
|
|
|
if ( !empty($slug) ) {
|
|
$slug = sanitize_title($slug);
|
|
$where .= " AND t.slug = '$slug'";
|
|
}
|
|
|
|
if ( !empty($name__like) )
|
|
$where .= " AND t.name LIKE '{$name__like}%'";
|
|
|
|
if ( '' != $parent ) {
|
|
$parent = (int) $parent;
|
|
$where .= " AND tt.parent = '$parent'";
|
|
}
|
|
|
|
if ( $hide_empty && !$hierarchical )
|
|
$where .= ' AND tt.count > 0';
|
|
|
|
if ( !empty($number) ) {
|
|
if( $offset )
|
|
$number = 'LIMIT ' . $offset . ',' . $number;
|
|
else
|
|
$number = 'LIMIT ' . $number;
|
|
|
|
} else
|
|
$number = '';
|
|
|
|
if ( !empty($search) ) {
|
|
$search = like_escape($search);
|
|
$where .= " AND (t.name LIKE '%$search%')";
|
|
}
|
|
|
|
$select_this = '';
|
|
if ( 'all' == $fields )
|
|
$select_this = 't.*, tt.*';
|
|
else if ( 'ids' == $fields )
|
|
$select_this = 't.term_id';
|
|
else if ( 'names' == $fields )
|
|
$select_this = 't.name';
|
|
|
|
$query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ($in_taxonomies) $where ORDER BY $orderby $order $number";
|
|
|
|
if ( 'all' == $fields ) {
|
|
$terms = $wpdb->get_results($query);
|
|
update_term_cache($terms);
|
|
} else if ( ('ids' == $fields) || ('names' == $fields) ) {
|
|
$terms = $wpdb->get_col($query);
|
|
}
|
|
|
|
if ( empty($terms) ) {
|
|
$cache[ $key ] = array();
|
|
wp_cache_set( 'get_terms', $cache, 'terms' );
|
|
return apply_filters('get_terms', array(), $taxonomies, $args);
|
|
}
|
|
|
|
if ( $child_of || $hierarchical ) {
|
|
$children = _get_term_hierarchy($taxonomies[0]);
|
|
if ( ! empty($children) )
|
|
$terms = & _get_term_children($child_of, $terms, $taxonomies[0]);
|
|
}
|
|
|
|
// Update term counts to include children.
|
|
if ( $pad_counts )
|
|
_pad_term_counts($terms, $taxonomies[0]);
|
|
|
|
// Make sure we show empty categories that have children.
|
|
if ( $hierarchical && $hide_empty ) {
|
|
foreach ( $terms as $k => $term ) {
|
|
if ( ! $term->count ) {
|
|
$children = _get_term_children($term->term_id, $terms, $taxonomies[0]);
|
|
foreach ( $children as $child )
|
|
if ( $child->count )
|
|
continue 2;
|
|
|
|
// It really is empty
|
|
unset($terms[$k]);
|
|
}
|
|
}
|
|
}
|
|
reset ( $terms );
|
|
|
|
$cache[ $key ] = $terms;
|
|
wp_cache_set( 'get_terms', $cache, 'terms' );
|
|
|
|
$terms = apply_filters('get_terms', $terms, $taxonomies, $args);
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* is_term() - Check if Term exists
|
|
*
|
|
* Returns the index of a defined term, or 0 (false) if the term doesn't exist.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @uses $wpdb
|
|
*
|
|
* @param int|string $term The term to check
|
|
* @param string $taxonomy The taxonomy name to use
|
|
* @return mixed Get the term id or Term Object, if exists.
|
|
*/
|
|
function is_term($term, $taxonomy = '') {
|
|
global $wpdb;
|
|
|
|
if ( is_int($term) ) {
|
|
if ( 0 == $term )
|
|
return 0;
|
|
$where = $wpdb->prepare( "t.term_id = %d", $term );
|
|
} else {
|
|
if ( '' === $term = sanitize_title($term) )
|
|
return 0;
|
|
$where = $wpdb->prepare( "t.slug = %s", $term );
|
|
}
|
|
|
|
if ( !empty($taxonomy) )
|
|
return $wpdb->get_row("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 $where AND tt.taxonomy = '$taxonomy'", ARRAY_A);
|
|
|
|
return $wpdb->get_var("SELECT term_id FROM $wpdb->terms as t WHERE $where");
|
|
}
|
|
|
|
/**
|
|
* sanitize_term() - Sanitize Term all fields
|
|
*
|
|
* Relys on sanitize_term_field() to sanitize the term. The difference
|
|
* is that this function will sanitize <strong>all</strong> fields. The context
|
|
* is based on sanitize_term_field().
|
|
*
|
|
* The $term is expected to be either an array or an object.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @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 $context Default is 'display'.
|
|
* @return array|object Term with all fields sanitized
|
|
*/
|
|
function sanitize_term($term, $taxonomy, $context = 'display') {
|
|
|
|
if ( 'raw' == $context )
|
|
return $term;
|
|
|
|
$fields = array('term_id', 'name', 'description', 'slug', 'count', 'parent', 'term_group');
|
|
|
|
$do_object = false;
|
|
if ( is_object($term) )
|
|
$do_object = true;
|
|
|
|
foreach ( $fields as $field ) {
|
|
if ( $do_object )
|
|
$term->$field = sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
|
|
else
|
|
$term[$field] = sanitize_term_field($field, $term[$field], $term['term_id'], $taxonomy, $context);
|
|
}
|
|
|
|
return $term;
|
|
}
|
|
|
|
/**
|
|
* sanitize_term_field() - Cleanse the field value in the term based on the context
|
|
*
|
|
* Passing a term field value through the function should be assumed to have cleansed
|
|
* the value for whatever context the term field is going to be used.
|
|
*
|
|
* If no context or an unsupported context is given, then default filters will be applied.
|
|
*
|
|
* There are enough filters for each context to support a custom filtering without creating
|
|
* your own filter function. Simply create a function that hooks into the filter you need.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @uses $wpdb
|
|
*
|
|
* @param string $field Term field to sanitize
|
|
* @param string $value Search for this term value
|
|
* @param int $term_id Term ID
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @param string $context Either edit, db, display, attribute, or js.
|
|
* @return mixed sanitized field
|
|
*/
|
|
function sanitize_term_field($field, $value, $term_id, $taxonomy, $context) {
|
|
if ( 'parent' == $field || 'term_id' == $field || 'count' == $field || 'term_group' == $field ) {
|
|
$value = (int) $value;
|
|
if ( $value < 0 )
|
|
$value = 0;
|
|
}
|
|
|
|
if ( 'raw' == $context )
|
|
return $value;
|
|
|
|
if ( 'edit' == $context ) {
|
|
$value = apply_filters("edit_term_$field", $value, $term_id, $taxonomy);
|
|
$value = apply_filters("edit_${taxonomy}_$field", $value, $term_id);
|
|
if ( 'description' == $field )
|
|
$value = format_to_edit($value);
|
|
else
|
|
$value = attribute_escape($value);
|
|
} else if ( 'db' == $context ) {
|
|
$value = apply_filters("pre_term_$field", $value, $taxonomy);
|
|
$value = apply_filters("pre_${taxonomy}_$field", $value);
|
|
// Back compat filters
|
|
if ( 'slug' == $field )
|
|
$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);
|
|
} 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);
|
|
}
|
|
|
|
if ( 'attribute' == $context )
|
|
$value = attribute_escape($value);
|
|
else if ( 'js' == $context )
|
|
$value = js_escape($value);
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* wp_count_terms() - Count how many terms are in Taxonomy
|
|
*
|
|
* Default $args is 'ignore_empty' which can be <code>'ignore_empty=true'</code> or
|
|
* <code>array('ignore_empty' => true);</code>.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @uses $wpdb
|
|
* @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
|
|
* @return int How many terms are in $taxonomy
|
|
*/
|
|
function wp_count_terms( $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
$defaults = array('ignore_empty' => false);
|
|
$args = wp_parse_args($args, $defaults);
|
|
extract($args, EXTR_SKIP);
|
|
|
|
$where = '';
|
|
if ( $ignore_empty )
|
|
$where = 'AND count > 0';
|
|
|
|
$taxonomy = $wpdb->escape( $taxonomy );
|
|
return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE taxonomy = '$taxonomy' $where");
|
|
}
|
|
|
|
/**
|
|
* wp_delete_object_term_relationships() - Will unlink the term from the taxonomy
|
|
*
|
|
* Will remove the term's relationship to the taxonomy, not the term or taxonomy itself.
|
|
* The term and taxonomy will still exist. Will require the term's object ID to perform
|
|
* the operation.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param int $object_id The term Object Id that refers to the term
|
|
* @param string|array $taxonomy 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 ( $taxonomies as $taxonomy ) {
|
|
$terms = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
|
|
$in_terms = "'" . implode("', '", $terms) . "'";
|
|
$wpdb->query("DELETE FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id IN ($in_terms)");
|
|
wp_update_term_count($terms, $taxonomy);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* wp_delete_term() - Removes a term from the database.
|
|
*
|
|
* If the term is a parent of other terms, then the children will be updated
|
|
* to that term's parent.
|
|
*
|
|
* The $args 'default' will only override the terms found, if there is only one
|
|
* term found. Any other and the found terms are used.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @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.
|
|
*
|
|
* @param int $term Term ID
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @param array|string $args Optional. Change 'default' term id and override found term ids.
|
|
* @return bool|WP_Error Returns false if not term; true if completes delete action.
|
|
*/
|
|
function wp_delete_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
$term = (int) $term;
|
|
|
|
if ( ! $ids = is_term($term, $taxonomy) )
|
|
return false;
|
|
if ( is_wp_error( $ids ) )
|
|
return $ids;
|
|
|
|
$tt_id = $ids['term_taxonomy_id'];
|
|
|
|
$defaults = array();
|
|
$args = wp_parse_args($args, $defaults);
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( isset($default) ) {
|
|
$default = (int) $default;
|
|
if ( ! is_term($default, $taxonomy) )
|
|
unset($default);
|
|
}
|
|
|
|
// Update children to point to new parent
|
|
if ( is_taxonomy_hierarchical($taxonomy) ) {
|
|
$term_obj = get_term($term, $taxonomy);
|
|
if ( is_wp_error( $term_obj ) )
|
|
return $term_obj;
|
|
$parent = $term_obj->parent;
|
|
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'parent' ), array( 'parent' => $term_obj->term_id) + compact( 'taxonomy' ) );
|
|
}
|
|
|
|
$objects = $wpdb->get_col( $wpdb->prepare( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $tt_id ) );
|
|
|
|
foreach ( (array) $objects as $object ) {
|
|
$terms = wp_get_object_terms($object, $taxonomy, 'fields=ids');
|
|
if ( 1 == count($terms) && isset($default) )
|
|
$terms = array($default);
|
|
else
|
|
$terms = array_diff($terms, array($term));
|
|
$terms = array_map('intval', $terms);
|
|
wp_set_object_terms($object, $terms, $taxonomy);
|
|
}
|
|
|
|
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $tt_id ) );
|
|
|
|
// Delete the term if no taxonomies use it.
|
|
if ( !$wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term) ) )
|
|
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->terms WHERE term_id = %d", $term) );
|
|
|
|
clean_term_cache($term, $taxonomy);
|
|
|
|
do_action('delete_term', $term, $tt_id, $taxonomy);
|
|
do_action("delete_$taxonomy", $term, $tt_id);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* wp_get_object_terms() - 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 choosen 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
|
|
* @uses $wpdb
|
|
*
|
|
* @param int|array $object_id The id 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 $taxonomy does not exist.
|
|
*/
|
|
function wp_get_object_terms($object_ids, $taxonomies, $args = array()) {
|
|
global $wpdb;
|
|
|
|
if ( !is_array($taxonomies) )
|
|
$taxonomies = array($taxonomies);
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
|
|
}
|
|
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = array($object_ids);
|
|
$object_ids = array_map('intval', $object_ids);
|
|
|
|
$defaults = array('orderby' => 'name', 'order' => 'ASC', 'fields' => 'all');
|
|
$args = wp_parse_args( $args, $defaults );
|
|
extract($args, EXTR_SKIP);
|
|
|
|
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 )
|
|
$orderby = 'tr.term_order';
|
|
else
|
|
$orderby = 't.term_id';
|
|
|
|
$taxonomies = "'" . implode("', '", $taxonomies) . "'";
|
|
$object_ids = implode(', ', $object_ids);
|
|
|
|
$select_this = '';
|
|
if ( 'all' == $fields )
|
|
$select_this = 't.*, tt.*';
|
|
else if ( 'ids' == $fields )
|
|
$select_this = 't.term_id';
|
|
else if ( 'names' == $fields )
|
|
$select_this = 't.name';
|
|
else if ( '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) ORDER BY $orderby $order";
|
|
|
|
if ( 'all' == $fields || 'all_with_object_id' == $fields ) {
|
|
$terms = $wpdb->get_results($query);
|
|
update_term_cache($terms);
|
|
} else if ( 'ids' == $fields || 'names' == $fields ) {
|
|
$terms = $wpdb->get_col($query);
|
|
} else if ( '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) ORDER BY tr.term_taxonomy_id $order");
|
|
}
|
|
|
|
if ( ! $terms )
|
|
return array();
|
|
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* wp_insert_term() - Adds a new term to the database. Optionally marks it as an alias of an existing term.
|
|
*
|
|
* Error handling is assigned for the nonexistance 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* '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 '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.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @uses do_action() Calls 'create_term' hook with the term id and taxonomy id as parameters.
|
|
* @uses do_action() Calls 'create_$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 int|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
|
|
*/
|
|
function wp_insert_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
if ( is_int($term) && 0 == $term )
|
|
return new WP_Error('invalid_term_id', __('Invalid term ID'));
|
|
|
|
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
|
|
$args = wp_parse_args($args, $defaults);
|
|
$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);
|
|
|
|
if ( empty($slug) )
|
|
$slug = sanitize_title($name);
|
|
|
|
$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 ) {
|
|
// 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.
|
|
$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1;
|
|
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->terms SET term_group = %d WHERE term_id = %d", $term_group, $alias->term_id ) );
|
|
}
|
|
}
|
|
|
|
if ( ! $term_id = is_term($slug) ) {
|
|
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) $wpdb->insert_id;
|
|
} else if ( is_taxonomy_hierarchical($taxonomy) && !empty($parent) ) {
|
|
// If the taxonomy supports hierarchy and the term has a parent, make the slug unique
|
|
// by incorporating parent slugs.
|
|
$slug = wp_unique_term_slug($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) $wpdb->insert_id;
|
|
}
|
|
|
|
if ( empty($slug) ) {
|
|
$slug = sanitize_title($slug, $term_id);
|
|
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( '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, $term_id ) );
|
|
|
|
if ( !empty($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, $tt_id);
|
|
do_action("create_$taxonomy", $term_id, $tt_id);
|
|
|
|
$term_id = apply_filters('term_id_filter', $term_id, $tt_id);
|
|
|
|
clean_term_cache($term_id, $taxonomy);
|
|
|
|
do_action("created_term", $term_id, $tt_id);
|
|
do_action("created_$taxonomy", $term_id, $tt_id);
|
|
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
}
|
|
|
|
/**
|
|
* wp_set_object_terms() - Create Term and Taxonomy Relationships
|
|
*
|
|
* Relates an object (post, link etc) to a term and taxonomy type. Creates the term and taxonomy
|
|
* relationship if it doesn't already exist. Creates a term if it doesn't exist (using the slug).
|
|
*
|
|
* A relationship means that the term is grouped in or belongs to the taxonomy. A term has no
|
|
* meaning until it is given context by defining which taxonomy it exists under.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param int $object_id The object to relate to.
|
|
* @param array|int|string $term The slug or id of the term.
|
|
* @param array|string $taxonomy The context in which to relate the term to the object.
|
|
* @param bool $append If false will delete difference of terms.
|
|
* @return array|WP_Error Affected Term IDs
|
|
*/
|
|
function wp_set_object_terms($object_id, $terms, $taxonomy, $append = false) {
|
|
global $wpdb;
|
|
|
|
$object_id = (int) $object_id;
|
|
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
|
|
|
|
if ( !is_array($terms) )
|
|
$terms = array($terms);
|
|
|
|
if ( ! $append )
|
|
$old_terms = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
|
|
|
|
$tt_ids = array();
|
|
$term_ids = array();
|
|
|
|
foreach ($terms as $term) {
|
|
if ( !strlen(trim($term)) )
|
|
continue;
|
|
|
|
if ( !$id = is_term($term, $taxonomy) )
|
|
$id = wp_insert_term($term, $taxonomy);
|
|
if ( is_wp_error($id) )
|
|
return $id;
|
|
$term_ids[] = $id['term_id'];
|
|
$id = $id['term_taxonomy_id'];
|
|
$tt_ids[] = $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, $id ) ) )
|
|
continue;
|
|
$wpdb->insert( $wpdb->term_relationships, array( 'object_id' => $object_id, 'term_taxonomy_id' => $id ) );
|
|
}
|
|
|
|
wp_update_term_count($tt_ids, $taxonomy);
|
|
|
|
if ( ! $append ) {
|
|
$delete_terms = array_diff($old_terms, $tt_ids);
|
|
if ( $delete_terms ) {
|
|
$in_delete_terms = "'" . implode("', '", $delete_terms) . "'";
|
|
$wpdb->query("DELETE FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id IN ($in_delete_terms)");
|
|
wp_update_term_count($delete_terms, $taxonomy);
|
|
}
|
|
}
|
|
|
|
$t = get_taxonomy($taxonomy);
|
|
if ( ! $append && isset($t->sort) && $t->sort ) {
|
|
$values = array();
|
|
$term_order = 0;
|
|
$final_term_ids = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
|
|
foreach ( $term_ids as $term_id )
|
|
if ( in_array($term_id, $final_term_ids) )
|
|
$values[] = $wpdb->prepare( "(%d, %d, %d)", $object_id, $term_id, ++$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)");
|
|
}
|
|
|
|
return $tt_ids;
|
|
}
|
|
|
|
/**
|
|
* wp_unique_term_slug() - Will make slug unique, if it isn't already
|
|
*
|
|
* The $slug has to be unique global to every taxonomy, meaning that one taxonomy
|
|
* term can't have a matching slug with another taxonomy term. Each slug has to be
|
|
* globally unique for every taxonomy.
|
|
*
|
|
* The way this works is that if the taxonomy that the term belongs to is heirarchical
|
|
* and has a parent, it will append that parent to the $slug.
|
|
*
|
|
* If that still doesn't return an unique slug, then it try to append a number until
|
|
* it finds a number that is truely unique.
|
|
*
|
|
* The only purpose for $term is for appending a parent, if one exists.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param string $slug The string that will be tried for a unique slug
|
|
* @param object $term The term object that the $slug will belong too
|
|
* @return string Will return a true unique slug.
|
|
*/
|
|
function wp_unique_term_slug($slug, $term) {
|
|
global $wpdb;
|
|
|
|
// If the taxonomy supports hierarchy and the term has a parent, make the slug unique
|
|
// by incorporating parent slugs.
|
|
if ( is_taxonomy_hierarchical($term->taxonomy) && !empty($term->parent) ) {
|
|
$the_parent = $term->parent;
|
|
while ( ! empty($the_parent) ) {
|
|
$parent_term = get_term($the_parent, $term->taxonomy);
|
|
if ( is_wp_error($parent_term) || empty($parent_term) )
|
|
break;
|
|
$slug .= '-' . $parent_term->slug;
|
|
if ( empty($parent_term->parent) )
|
|
break;
|
|
$the_parent = $parent_term->parent;
|
|
}
|
|
}
|
|
|
|
// If we didn't get a unique slug, try appending a number to make it unique.
|
|
if ( !empty($args['term_id']) )
|
|
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $args['term_id'] );
|
|
else
|
|
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug );
|
|
|
|
if ( $wpdb->get_var( $query ) ) {
|
|
$num = 2;
|
|
do {
|
|
$alt_slug = $slug . "-$num";
|
|
$num++;
|
|
$slug_check = $wpdb->get_var( $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug ) );
|
|
} while ( $slug_check );
|
|
$slug = $alt_slug;
|
|
}
|
|
|
|
return $slug;
|
|
}
|
|
|
|
/**
|
|
* wp_update_term() - Update term based on arguments provided
|
|
*
|
|
* The $args will indiscriminately override all values with the same field name. Care
|
|
* must be taken to not override important information need to update or update will
|
|
* fail (or perhaps create a new term, neither would be acceptable).
|
|
*
|
|
* Defaults will set 'alias_of', 'description', 'parent', and 'slug' if not defined
|
|
* in $args already.
|
|
*
|
|
* 'alias_of' will create a term group, if it doesn't already exist, and update it for
|
|
* the $term.
|
|
*
|
|
* If the 'slug' argument in $args is missing, then the 'name' in $args will be used.
|
|
* It should also be noted that if you set 'slug' and it isn't unique then a WP_Error
|
|
* will be passed back. If you don't pass any slug, then a unique one will be created
|
|
* for you.
|
|
*
|
|
* For what can be overrode in $args, check the term scheme can contain and stay away
|
|
* from the term keys.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @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.
|
|
*
|
|
* @param int $term The ID of the term
|
|
* @param string $taxonomy The context in which to relate the term to the object.
|
|
* @param array|string $args Overwrite term field values
|
|
* @return array|WP_Error Returns Term ID and Taxonomy Term ID
|
|
*/
|
|
function wp_update_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
$term_id = (int) $term;
|
|
|
|
// First, get all of the original args
|
|
$term = get_term ($term_id, $taxonomy, ARRAY_A);
|
|
|
|
// Escape data pulled from DB.
|
|
$term = add_magic_quotes($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);
|
|
|
|
// expected_slashed ($name)
|
|
$name = stripslashes($name);
|
|
$description = stripslashes($description);
|
|
|
|
$empty_slug = false;
|
|
if ( empty($slug) ) {
|
|
$empty_slug = true;
|
|
$slug = sanitize_title($name);
|
|
}
|
|
|
|
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 ) {
|
|
// 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.
|
|
$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1;
|
|
$wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) );
|
|
}
|
|
}
|
|
|
|
// 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) ) {
|
|
// If an empty slug was passed or the parent changed, reset the slug to something unique.
|
|
// Otherwise, bail.
|
|
if ( $empty_slug || ( $parent != $term->parent) )
|
|
$slug = wp_unique_term_slug($slug, (object) $args);
|
|
else
|
|
return new WP_Error('duplicate_term_slug', sprintf(__('The slug "%s" is already in use by another term'), $slug));
|
|
}
|
|
|
|
$wpdb->update($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' ) );
|
|
}
|
|
|
|
$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) );
|
|
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ), array( 'term_taxonomy_id' => $tt_id ) );
|
|
|
|
do_action("edit_term", $term_id, $tt_id);
|
|
do_action("edit_$taxonomy", $term_id, $tt_id);
|
|
|
|
$term_id = apply_filters('term_id_filter', $term_id, $tt_id);
|
|
|
|
clean_term_cache($term_id, $taxonomy);
|
|
|
|
do_action("edited_term", $term_id, $tt_id);
|
|
do_action("edited_$taxonomy", $term_id, $tt_id);
|
|
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
}
|
|
|
|
// enable or disable term count deferring
|
|
// if no value is supplied, the current value of the defer setting is returned
|
|
function wp_defer_term_counting($defer=NULL) {
|
|
static $_defer = false;
|
|
|
|
if ( is_bool($defer) ) {
|
|
$_defer = $defer;
|
|
// flush any deferred counts
|
|
if ( !$defer )
|
|
wp_update_term_count( NULL, NULL, true );
|
|
}
|
|
|
|
return $_defer;
|
|
}
|
|
|
|
/**
|
|
* wp_update_term_count() - Updates the amount of terms in taxonomy
|
|
*
|
|
* If there is a taxonomy callback applyed, then it will be called for updating the count.
|
|
*
|
|
* The default action is to count what the amount of terms have the relationship of term ID.
|
|
* Once that is done, then update the database.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param int|array $terms The ID of the terms
|
|
* @param string $taxonomy The context of the term.
|
|
* @return bool If no terms will return false, and if successful will return true.
|
|
*/
|
|
function wp_update_term_count( $terms, $taxonomy, $do_deferred=false ) {
|
|
static $_deferred = array();
|
|
|
|
if ( $do_deferred ) {
|
|
foreach ( array_keys($_deferred) as $tax ) {
|
|
wp_update_term_count_now( $_deferred[$tax], $tax );
|
|
unset( $_deferred[$tax] );
|
|
}
|
|
}
|
|
|
|
if ( empty($terms) )
|
|
return false;
|
|
|
|
if ( !is_array($terms) )
|
|
$terms = array($terms);
|
|
|
|
if ( wp_defer_term_counting() ) {
|
|
if ( !isset($_deferred[$taxonomy]) )
|
|
$_deferred[$taxonomy] = array();
|
|
$_deferred[$taxonomy] = array_unique( array_merge($_deferred[$taxonomy], $terms) );
|
|
return true;
|
|
}
|
|
|
|
return wp_update_term_count_now( $terms, $taxonomy );
|
|
}
|
|
|
|
function wp_update_term_count_now( $terms, $taxonomy ) {
|
|
global $wpdb;
|
|
|
|
$terms = array_map('intval', $terms);
|
|
|
|
$taxonomy = get_taxonomy($taxonomy);
|
|
if ( !empty($taxonomy->update_count_callback) ) {
|
|
call_user_func($taxonomy->update_count_callback, $terms);
|
|
} else {
|
|
// Default count updater
|
|
foreach ($terms as $term) {
|
|
$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term) );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
|
|
}
|
|
|
|
}
|
|
|
|
clean_term_cache($terms);
|
|
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// Cache
|
|
//
|
|
|
|
/**
|
|
* clean_object_term_cache() - Removes the taxonomy relationship to terms from the cache.
|
|
*
|
|
* Will remove the entire taxonomy relationship containing term $object_id. The term IDs
|
|
* have to exist within the taxonomy $object_type for the deletion to take place.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @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 string $object_type The taxonomy object type
|
|
*/
|
|
function clean_object_term_cache($object_ids, $object_type) {
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = array($object_ids);
|
|
|
|
foreach ( $object_ids as $id )
|
|
foreach ( get_object_taxonomies($object_type) as $taxonomy )
|
|
wp_cache_delete($id, "{$taxonomy}_relationships");
|
|
|
|
do_action('clean_object_term_cache', $object_ids, $object_type);
|
|
}
|
|
|
|
/**
|
|
* clean_term_cache() - Will remove all of the term ids from the cache
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @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 = '') {
|
|
global $wpdb;
|
|
|
|
if ( !is_array($ids) )
|
|
$ids = array($ids);
|
|
|
|
$taxonomies = array();
|
|
// If no taxonomy, assume tt_ids.
|
|
if ( empty($taxonomy) ) {
|
|
$tt_ids = implode(', ', $ids);
|
|
$terms = $wpdb->get_results("SELECT term_id, taxonomy FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)");
|
|
foreach ( (array) $terms as $term ) {
|
|
$taxonomies[] = $term->taxonomy;
|
|
wp_cache_delete($term->term_id, $term->taxonomy);
|
|
}
|
|
$taxonomies = array_unique($taxonomies);
|
|
} else {
|
|
foreach ( $ids as $id ) {
|
|
wp_cache_delete($id, $taxonomy);
|
|
}
|
|
$taxonomies = array($taxonomy);
|
|
}
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
wp_cache_delete('all_ids', $taxonomy);
|
|
wp_cache_delete('get', $taxonomy);
|
|
delete_option("{$taxonomy}_children");
|
|
}
|
|
|
|
wp_cache_delete('get_terms', 'terms');
|
|
|
|
do_action('clean_term_cache', $ids, $taxonomy);
|
|
}
|
|
|
|
/**
|
|
* get_object_term_cache() - Retrieves the taxonomy relationship to the term object id.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @uses wp_cache_get() Retrieves taxonomy relationship from cache
|
|
*
|
|
* @param int|array $id Term object ID
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @return bool|array Empty array if $terms found, but not $taxonomy. False if nothing is in cache for $taxonomy and $id.
|
|
*/
|
|
function &get_object_term_cache($id, $taxonomy) {
|
|
$cache = wp_cache_get($id, "{$taxonomy}_relationships");
|
|
return $cache;
|
|
}
|
|
|
|
/**
|
|
* update_object_term_cache() - Updates the cache for Term ID(s)
|
|
*
|
|
* Will only update the cache for terms not already cached.
|
|
*
|
|
* The $object_ids expects that the ids be separated by commas, if it is
|
|
* a string.
|
|
*
|
|
* It should be noted that update_object_term_cache() is very time extensive.
|
|
* It is advised that the function is not called very often or at least not
|
|
* for a lot of terms that exist in a lot of taxonomies. The amount of time
|
|
* increases for each term and it also increases for each taxonomy the term
|
|
* belongs to.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
* @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 string $object_type The taxonomy object type
|
|
* @return null|bool Null value is given with empty $object_ids. False if
|
|
*/
|
|
function update_object_term_cache($object_ids, $object_type) {
|
|
if ( empty($object_ids) )
|
|
return;
|
|
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = explode(',', $object_ids);
|
|
|
|
$object_ids = array_map('intval', $object_ids);
|
|
|
|
$taxonomies = get_object_taxonomies($object_type);
|
|
|
|
$ids = array();
|
|
foreach ( (array) $object_ids as $id ) {
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( false === wp_cache_get($id, "{$taxonomy}_relationships") ) {
|
|
$ids[] = $id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( empty( $ids ) )
|
|
return false;
|
|
|
|
$terms = wp_get_object_terms($ids, $taxonomies, 'fields=all_with_object_id');
|
|
|
|
$object_terms = array();
|
|
foreach ( (array) $terms as $term )
|
|
$object_terms[$term->object_id][$term->taxonomy][$term->term_id] = $term;
|
|
|
|
foreach ( $ids as $id ) {
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( ! isset($object_terms[$id][$taxonomy]) ) {
|
|
if ( !isset($object_terms[$id]) )
|
|
$object_terms[$id] = array();
|
|
$object_terms[$id][$taxonomy] = array();
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach ( $object_terms as $id => $value ) {
|
|
foreach ( $value as $taxonomy => $terms ) {
|
|
wp_cache_set($id, $terms, "{$taxonomy}_relationships");
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* update_term_cache() - Updates Terms to Taxonomy in cache.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3
|
|
*
|
|
* @param array $terms List of Term objects to change
|
|
* @param string $taxonomy Optional. Update Term to this taxonomy in cache
|
|
*/
|
|
function update_term_cache($terms, $taxonomy = '') {
|
|
foreach ( $terms as $term ) {
|
|
$term_taxonomy = $taxonomy;
|
|
if ( empty($term_taxonomy) )
|
|
$term_taxonomy = $term->taxonomy;
|
|
|
|
wp_cache_add($term->term_id, $term, $term_taxonomy);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Private
|
|
//
|
|
|
|
/**
|
|
* _get_term_hierarchy() - Retrieves children of taxonomy
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3
|
|
*
|
|
* @uses update_option() Stores all of the children in "$taxonomy_children" option.
|
|
* That is the name of the taxonomy, immediately followed by '_children'.
|
|
*
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @return array Empty if $taxonomy isn't hierarachical or returns children.
|
|
*/
|
|
function _get_term_hierarchy($taxonomy) {
|
|
if ( !is_taxonomy_hierarchical($taxonomy) )
|
|
return array();
|
|
$children = get_option("{$taxonomy}_children");
|
|
if ( is_array($children) )
|
|
return $children;
|
|
|
|
$children = array();
|
|
$terms = get_terms($taxonomy, 'get=all');
|
|
foreach ( $terms as $term ) {
|
|
if ( $term->parent > 0 )
|
|
$children[$term->parent][] = $term->term_id;
|
|
}
|
|
update_option("{$taxonomy}_children", $children);
|
|
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* _get_term_children() - Get array of child terms
|
|
*
|
|
* If $terms is an array of objects, then objects will returned from the function.
|
|
* If $terms is an array of IDs, then an array of ids of children will be returned.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3
|
|
*
|
|
* @param int $term_id Look for this Term ID in $terms
|
|
* @param array $terms List of Term IDs
|
|
* @param string $taxonomy Term Context
|
|
* @return array Empty if $terms is empty else returns full list of child terms.
|
|
*/
|
|
function &_get_term_children($term_id, $terms, $taxonomy) {
|
|
$empty_array = array();
|
|
if ( empty($terms) )
|
|
return $empty_array;
|
|
|
|
$term_list = array();
|
|
$has_children = _get_term_hierarchy($taxonomy);
|
|
|
|
if ( ( 0 != $term_id ) && ! isset($has_children[$term_id]) )
|
|
return $empty_array;
|
|
|
|
foreach ( $terms as $term ) {
|
|
$use_id = false;
|
|
if ( !is_object($term) ) {
|
|
$term = get_term($term, $taxonomy);
|
|
if ( is_wp_error( $term ) )
|
|
return $term;
|
|
$use_id = true;
|
|
}
|
|
|
|
if ( $term->term_id == $term_id )
|
|
continue;
|
|
|
|
if ( $term->parent == $term_id ) {
|
|
if ( $use_id )
|
|
$term_list[] = $term->term_id;
|
|
else
|
|
$term_list[] = $term;
|
|
|
|
if ( !isset($has_children[$term->term_id]) )
|
|
continue;
|
|
|
|
if ( $children = _get_term_children($term->term_id, $terms, $taxonomy) )
|
|
$term_list = array_merge($term_list, $children);
|
|
}
|
|
}
|
|
|
|
return $term_list;
|
|
}
|
|
|
|
/**
|
|
* _pad_term_counts() - Add count of children to parent count
|
|
*
|
|
* Recalculates term counts by including items from child terms.
|
|
* Assumes all relevant children are already in the $terms argument
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param array $terms List of Term IDs
|
|
* @param string $taxonomy Term Context
|
|
* @return null Will break from function if conditions are not met.
|
|
*/
|
|
function _pad_term_counts(&$terms, $taxonomy) {
|
|
global $wpdb;
|
|
|
|
// This function only works for post categories.
|
|
if ( 'category' != $taxonomy )
|
|
return;
|
|
|
|
$term_hier = _get_term_hierarchy($taxonomy);
|
|
|
|
if ( empty($term_hier) )
|
|
return;
|
|
|
|
$term_items = array();
|
|
|
|
foreach ( $terms as $key => $term ) {
|
|
$terms_by_id[$term->term_id] = & $terms[$key];
|
|
$term_ids[$term->term_taxonomy_id] = $term->term_id;
|
|
}
|
|
|
|
// Get the object and term ids and stick them in a lookup table
|
|
$results = $wpdb->get_results("SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships INNER JOIN $wpdb->posts ON object_id = ID WHERE term_taxonomy_id IN (".join(',', array_keys($term_ids)).") AND post_type = 'post' AND post_status = 'publish'");
|
|
foreach ( $results as $row ) {
|
|
$id = $term_ids[$row->term_taxonomy_id];
|
|
++$term_items[$id][$row->object_id];
|
|
}
|
|
|
|
// Touch every ancestor's lookup row for each post in each term
|
|
foreach ( $term_ids as $term_id ) {
|
|
$child = $term_id;
|
|
while ( $parent = $terms_by_id[$child]->parent ) {
|
|
if ( !empty($term_items[$term_id]) )
|
|
foreach ( $term_items[$term_id] as $item_id => $touches )
|
|
++$term_items[$parent][$item_id];
|
|
$child = $parent;
|
|
}
|
|
}
|
|
|
|
// Transfer the touched cells
|
|
foreach ( (array) $term_items as $id => $items )
|
|
if ( isset($terms_by_id[$id]) )
|
|
$terms_by_id[$id]->count = count($items);
|
|
}
|
|
|
|
//
|
|
// Default callbacks
|
|
//
|
|
|
|
/**
|
|
* _update_post_term_count() - Will update term count based on posts
|
|
*
|
|
* Private function for the default callback for post_tag and category taxonomies.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3
|
|
* @uses $wpdb
|
|
*
|
|
* @param array $terms List of Term IDs
|
|
*/
|
|
function _update_post_term_count( $terms ) {
|
|
global $wpdb;
|
|
|
|
foreach ( $terms as $term ) {
|
|
$count = $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 = 'post' AND term_taxonomy_id = %d", $term ) );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
|
|
}
|
|
}
|
|
|
|
?>
|