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5a43c3324d
"The cache invalidation with static was introduced in r9102 with version 2.7. Multisite wasn't in core back then, so something like switch_to_blog() wasn't a concern, but now it breaks if you switch the blog in between calls to clean_term_cache." This solution is simpler. All unit tests pass. Removes unnecessary tests linked to removed functions. Props kovshenin. Fixes #14485, #22526. Built from https://develop.svn.wordpress.org/trunk@27163 git-svn-id: http://core.svn.wordpress.org/trunk@27029 1a063a9b-81f0-0310-95a4-ce76da25c4cd
3489 lines
114 KiB
PHP
3489 lines
114 KiB
PHP
<?php
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/**
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* Taxonomy API
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 2.3.0
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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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* Creates the initial taxonomies.
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*
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* This function fires twice: in wp-settings.php before plugins are loaded (for
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* backwards compatibility reasons), and again on the 'init' action. We must avoid
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* registering rewrite rules before the 'init' action.
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*/
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function create_initial_taxonomies() {
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global $wp_rewrite;
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if ( ! did_action( 'init' ) ) {
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$rewrite = array( 'category' => false, 'post_tag' => false, 'post_format' => false );
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} else {
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$post_format_base = apply_filters( 'post_format_rewrite_base', 'type' );
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$rewrite = array(
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'category' => array(
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'hierarchical' => true,
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'slug' => get_option('category_base') ? get_option('category_base') : 'category',
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'with_front' => ! get_option('category_base') || $wp_rewrite->using_index_permalinks(),
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'ep_mask' => EP_CATEGORIES,
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),
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'post_tag' => array(
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'slug' => get_option('tag_base') ? get_option('tag_base') : 'tag',
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'with_front' => ! get_option('tag_base') || $wp_rewrite->using_index_permalinks(),
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'ep_mask' => EP_TAGS,
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),
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'post_format' => $post_format_base ? array( 'slug' => $post_format_base ) : false,
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);
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}
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register_taxonomy( 'category', 'post', array(
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'hierarchical' => true,
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'query_var' => 'category_name',
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'rewrite' => $rewrite['category'],
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'public' => true,
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'show_ui' => true,
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'show_admin_column' => true,
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'_builtin' => true,
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) );
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register_taxonomy( 'post_tag', 'post', array(
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'hierarchical' => false,
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'query_var' => 'tag',
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'rewrite' => $rewrite['post_tag'],
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'public' => true,
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'show_ui' => true,
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'show_admin_column' => true,
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'_builtin' => true,
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) );
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register_taxonomy( 'nav_menu', 'nav_menu_item', array(
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'public' => false,
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'hierarchical' => false,
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'labels' => array(
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'name' => __( 'Navigation Menus' ),
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'singular_name' => __( 'Navigation Menu' ),
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),
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'query_var' => false,
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'rewrite' => false,
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'show_ui' => false,
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'_builtin' => true,
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'show_in_nav_menus' => false,
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) );
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register_taxonomy( 'link_category', 'link', array(
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'hierarchical' => false,
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'labels' => array(
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'name' => __( 'Link Categories' ),
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'singular_name' => __( 'Link Category' ),
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'search_items' => __( 'Search Link Categories' ),
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'popular_items' => null,
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'all_items' => __( 'All Link Categories' ),
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'edit_item' => __( 'Edit Link Category' ),
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'update_item' => __( 'Update Link Category' ),
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'add_new_item' => __( 'Add New Link Category' ),
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'new_item_name' => __( 'New Link Category Name' ),
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'separate_items_with_commas' => null,
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'add_or_remove_items' => null,
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'choose_from_most_used' => null,
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),
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'capabilities' => array(
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'manage_terms' => 'manage_links',
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'edit_terms' => 'manage_links',
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'delete_terms' => 'manage_links',
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'assign_terms' => 'manage_links',
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),
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'query_var' => false,
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'rewrite' => false,
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'public' => false,
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'show_ui' => false,
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'_builtin' => true,
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) );
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register_taxonomy( 'post_format', 'post', array(
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'public' => true,
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'hierarchical' => false,
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'labels' => array(
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'name' => _x( 'Format', 'post format' ),
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'singular_name' => _x( 'Format', 'post format' ),
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),
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'query_var' => true,
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'rewrite' => $rewrite['post_format'],
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'show_ui' => false,
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'_builtin' => true,
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'show_in_nav_menus' => current_theme_supports( 'post-formats' ),
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) );
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}
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add_action( 'init', 'create_initial_taxonomies', 0 ); // highest priority
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/**
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* Get a list of registered taxonomy objects.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 3.0.0
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* @uses $wp_taxonomies
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* @see register_taxonomy
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*
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* @param array $args An array of key => value arguments to match against the taxonomy objects.
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* @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
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* @param string $operator The logical operation to perform. 'or' means only one element
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* from the array needs to match; 'and' means all elements must match. The default is 'and'.
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* @return array A list of taxonomy names or objects
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*/
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function get_taxonomies( $args = array(), $output = 'names', $operator = 'and' ) {
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global $wp_taxonomies;
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$field = ('names' == $output) ? 'name' : false;
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return wp_filter_object_list($wp_taxonomies, $args, $operator, $field);
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}
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/**
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* 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> Should
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* 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 2.3.0
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*
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* @uses $wp_taxonomies
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*
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* @param array|string|object $object Name of the type of taxonomy object, or an object (row from posts)
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* @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
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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, $output = 'names') {
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global $wp_taxonomies;
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if ( is_object($object) ) {
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if ( $object->post_type == 'attachment' )
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return get_attachment_taxonomies($object);
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$object = $object->post_type;
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}
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$object = (array) $object;
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$taxonomies = array();
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foreach ( (array) $wp_taxonomies as $tax_name => $tax_obj ) {
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if ( array_intersect($object, (array) $tax_obj->object_type) ) {
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if ( 'names' == $output )
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$taxonomies[] = $tax_name;
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else
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$taxonomies[ $tax_name ] = $tax_obj;
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}
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}
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return $taxonomies;
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}
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/**
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* Retrieves 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 2.3.0
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*
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* @uses $wp_taxonomies
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* @uses taxonomy_exists() 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 ( ! taxonomy_exists( $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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* Checks that the taxonomy name exists.
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*
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* Formerly is_taxonomy(), introduced in 2.3.0.
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 3.0.0
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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.
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*/
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function taxonomy_exists( $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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* 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
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* object, and finally 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 2.3.0
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*
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* @uses taxonomy_exists() 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 ( ! taxonomy_exists($taxonomy) )
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return false;
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$taxonomy = get_taxonomy($taxonomy);
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return $taxonomy->hierarchical;
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}
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/**
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* Create or modify a taxonomy object. Do not use before init.
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*
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* A simple function for creating or modifying a taxonomy object based on the
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* parameters given. The function will accept an array (third optional
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* parameter), along with strings for the taxonomy name and another string for
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* the object type.
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*
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* Nothing is returned, so expect error maybe or use taxonomy_exists() to check
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* whether taxonomy exists.
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*
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* Optional $args contents:
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*
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* - label - Name of the taxonomy shown in the menu. Usually plural. If not set, labels['name'] will be used.
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* - labels - An array of labels for this taxonomy.
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* * By default tag labels are used for non-hierarchical types and category labels for hierarchical ones.
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* * You can see accepted values in {@link get_taxonomy_labels()}.
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* - description - A short descriptive summary of what the taxonomy is for. Defaults to blank.
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* - public - If the taxonomy should be publicly queryable; //@TODO not implemented.
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* * Defaults to true.
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* - hierarchical - Whether the taxonomy is hierarchical (e.g. category). Defaults to false.
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* - show_ui -Whether to generate a default UI for managing this taxonomy in the admin.
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* * If not set, the default is inherited from public.
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* - show_in_menu - Where to show the taxonomy in the admin menu.
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* * If true, the taxonomy is shown as a submenu of the object type menu.
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* * If false, no menu is shown.
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* * show_ui must be true.
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* * If not set, the default is inherited from show_ui.
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* - show_in_nav_menus - Makes this taxonomy available for selection in navigation menus.
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* * If not set, the default is inherited from public.
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* - show_tagcloud - Whether to list the taxonomy in the Tag Cloud Widget.
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* * If not set, the default is inherited from show_ui.
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* - show_admin_column - Whether to display a column for the taxonomy on its post type listing screens.
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* * Defaults to false.
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* - meta_box_cb - Provide a callback function for the meta box display.
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* * If not set, defaults to post_categories_meta_box for hierarchical taxonomies
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* and post_tags_meta_box for non-hierarchical.
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* * If false, no meta box is shown.
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* - capabilities - Array of capabilities for this taxonomy.
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* * You can see accepted values in this function.
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* - rewrite - Triggers the handling of rewrites for this taxonomy. Defaults to true, using $taxonomy as slug.
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* * To prevent rewrite, set to false.
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* * To specify rewrite rules, an array can be passed with any of these keys
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* * 'slug' => string Customize the permastruct slug. Defaults to $taxonomy key
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* * 'with_front' => bool Should the permastruct be prepended with WP_Rewrite::$front. Defaults to true.
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* * 'hierarchical' => bool Either hierarchical rewrite tag or not. Defaults to false.
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* * 'ep_mask' => const Assign an endpoint mask.
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* * If not specified, defaults to EP_NONE.
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* - query_var - Sets the query_var key for this taxonomy. Defaults to $taxonomy key
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* * If false, a taxonomy cannot be loaded at ?{query_var}={term_slug}
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* * If specified as a string, the query ?{query_var_string}={term_slug} will be valid.
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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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* * Defaults to _update_post_term_count() for taxonomies attached to post types, which then confirms
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* that the objects are published before counting them.
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* * Defaults to _update_generic_term_count() for taxonomies attached to other object types, such as links.
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* - _builtin - true if this taxonomy is a native or "built-in" taxonomy. THIS IS FOR INTERNAL USE ONLY!
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*
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* @since 2.3.0
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* @uses $wp_taxonomies Inserts new taxonomy object into the list
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* @uses $wp Adds query vars
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*
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* @param string $taxonomy Taxonomy key, must not exceed 32 characters.
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* @param array|string $object_type Name of the object type for the taxonomy object.
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* @param array|string $args See optional args description above.
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* @return null|WP_Error WP_Error if errors, otherwise null.
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*/
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function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
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global $wp_taxonomies, $wp;
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if ( ! is_array( $wp_taxonomies ) )
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$wp_taxonomies = array();
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$defaults = array(
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'labels' => array(),
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'description' => '',
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'public' => true,
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'hierarchical' => false,
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'show_ui' => null,
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'show_in_menu' => null,
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'show_in_nav_menus' => null,
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'show_tagcloud' => null,
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'show_admin_column' => false,
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'meta_box_cb' => null,
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'capabilities' => array(),
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'rewrite' => true,
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'query_var' => $taxonomy,
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'update_count_callback' => '',
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'_builtin' => false,
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);
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$args = wp_parse_args( $args, $defaults );
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if ( strlen( $taxonomy ) > 32 )
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return new WP_Error( 'taxonomy_too_long', __( 'Taxonomies cannot exceed 32 characters in length' ) );
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if ( false !== $args['query_var'] && ! empty( $wp ) ) {
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if ( true === $args['query_var'] )
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$args['query_var'] = $taxonomy;
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else
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$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
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$wp->add_query_var( $args['query_var'] );
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}
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if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
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$args['rewrite'] = wp_parse_args( $args['rewrite'], array(
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'with_front' => true,
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'hierarchical' => false,
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'ep_mask' => EP_NONE,
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) );
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if ( empty( $args['rewrite']['slug'] ) )
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$args['rewrite']['slug'] = sanitize_title_with_dashes( $taxonomy );
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if ( $args['hierarchical'] && $args['rewrite']['hierarchical'] )
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$tag = '(.+?)';
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else
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$tag = '([^/]+)';
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add_rewrite_tag( "%$taxonomy%", $tag, $args['query_var'] ? "{$args['query_var']}=" : "taxonomy=$taxonomy&term=" );
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add_permastruct( $taxonomy, "{$args['rewrite']['slug']}/%$taxonomy%", $args['rewrite'] );
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}
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// If not set, default to the setting for public.
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if ( null === $args['show_ui'] )
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$args['show_ui'] = $args['public'];
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// If not set, default to the setting for show_ui.
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if ( null === $args['show_in_menu' ] || ! $args['show_ui'] )
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$args['show_in_menu' ] = $args['show_ui'];
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// If not set, default to the setting for public.
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if ( null === $args['show_in_nav_menus'] )
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$args['show_in_nav_menus'] = $args['public'];
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// If not set, default to the setting for show_ui.
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if ( null === $args['show_tagcloud'] )
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$args['show_tagcloud'] = $args['show_ui'];
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$default_caps = array(
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'manage_terms' => 'manage_categories',
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'edit_terms' => 'manage_categories',
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'delete_terms' => 'manage_categories',
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'assign_terms' => 'edit_posts',
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);
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$args['cap'] = (object) array_merge( $default_caps, $args['capabilities'] );
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unset( $args['capabilities'] );
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$args['name'] = $taxonomy;
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$args['object_type'] = array_unique( (array) $object_type );
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$args['labels'] = get_taxonomy_labels( (object) $args );
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$args['label'] = $args['labels']->name;
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// If not set, use the default meta box
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if ( null === $args['meta_box_cb'] ) {
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if ( $args['hierarchical'] )
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$args['meta_box_cb'] = 'post_categories_meta_box';
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else
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$args['meta_box_cb'] = 'post_tags_meta_box';
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}
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$wp_taxonomies[ $taxonomy ] = (object) $args;
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// register callback handling for metabox
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add_filter( 'wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term' );
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do_action( 'registered_taxonomy', $taxonomy, $object_type, $args );
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}
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/**
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* Builds an object with all taxonomy labels out of a taxonomy object
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*
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* Accepted keys of the label array in the taxonomy object:
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* - name - general name for the taxonomy, usually plural. The same as and overridden by $tax->label. Default is Tags/Categories
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* - singular_name - name for one object of this taxonomy. Default is Tag/Category
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* - search_items - Default is Search Tags/Search Categories
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* - popular_items - This string isn't used on hierarchical taxonomies. Default is Popular Tags
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* - all_items - Default is All Tags/All Categories
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* - parent_item - This string isn't used on non-hierarchical taxonomies. In hierarchical ones the default is Parent Category
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* - parent_item_colon - The same as <code>parent_item</code>, but with colon <code>:</code> in the end
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* - edit_item - Default is Edit Tag/Edit Category
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* - view_item - Default is View Tag/View Category
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* - update_item - Default is Update Tag/Update Category
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* - add_new_item - Default is Add New Tag/Add New Category
|
|
* - new_item_name - Default is New Tag Name/New Category Name
|
|
* - separate_items_with_commas - This string isn't used on hierarchical taxonomies. Default is "Separate tags with commas", used in the meta box.
|
|
* - add_or_remove_items - This string isn't used on hierarchical taxonomies. Default is "Add or remove tags", used in the meta box when JavaScript is disabled.
|
|
* - choose_from_most_used - This string isn't used on hierarchical taxonomies. Default is "Choose from the most used tags", used in the meta box.
|
|
* - not_found - This string isn't used on hierarchical taxonomies. Default is "No tags found", used in the meta box.
|
|
*
|
|
* Above, the first default value is for non-hierarchical taxonomies (like tags) and the second one is for hierarchical taxonomies (like categories).
|
|
*
|
|
* @since 3.0.0
|
|
* @param object $tax Taxonomy object
|
|
* @return object object with all the labels as member variables
|
|
*/
|
|
|
|
function get_taxonomy_labels( $tax ) {
|
|
$tax->labels = (array) $tax->labels;
|
|
|
|
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' ) ),
|
|
'search_items' => array( __( 'Search Tags' ), __( 'Search Categories' ) ),
|
|
'popular_items' => array( __( 'Popular Tags' ), null ),
|
|
'all_items' => array( __( 'All Tags' ), __( 'All Categories' ) ),
|
|
'parent_item' => array( null, __( 'Parent Category' ) ),
|
|
'parent_item_colon' => array( null, __( 'Parent Category:' ) ),
|
|
'edit_item' => array( __( 'Edit Tag' ), __( 'Edit Category' ) ),
|
|
'view_item' => array( __( 'View Tag' ), __( 'View Category' ) ),
|
|
'update_item' => array( __( 'Update Tag' ), __( 'Update Category' ) ),
|
|
'add_new_item' => array( __( 'Add New Tag' ), __( 'Add New Category' ) ),
|
|
'new_item_name' => array( __( 'New Tag Name' ), __( 'New Category 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.' ), null ),
|
|
);
|
|
$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
|
|
|
|
return _get_custom_object_labels( $tax, $nohier_vs_hier_defaults );
|
|
}
|
|
|
|
/**
|
|
* Add an already registered taxonomy to an object type.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 3.0.0
|
|
* @uses $wp_taxonomies Modifies taxonomy object
|
|
*
|
|
* @param string $taxonomy Name of taxonomy object
|
|
* @param string $object_type Name of the object type
|
|
* @return bool True if successful, false if not
|
|
*/
|
|
function register_taxonomy_for_object_type( $taxonomy, $object_type) {
|
|
global $wp_taxonomies;
|
|
|
|
if ( !isset($wp_taxonomies[$taxonomy]) )
|
|
return false;
|
|
|
|
if ( ! get_post_type_object($object_type) )
|
|
return false;
|
|
|
|
if ( ! in_array( $object_type, $wp_taxonomies[$taxonomy]->object_type ) )
|
|
$wp_taxonomies[$taxonomy]->object_type[] = $object_type;
|
|
|
|
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
|
|
//
|
|
|
|
/**
|
|
* Retrieve object_ids of valid taxonomy and term.
|
|
*
|
|
* The strings of $taxonomies must exist before this function will continue. On
|
|
* failure of finding a valid taxonomy, it will return an WP_Error class, kind
|
|
* of like Exceptions in PHP 5, except you can't catch them. Even so, you can
|
|
* still test for the WP_Error class and get the error message.
|
|
*
|
|
* The $terms aren't checked the same as $taxonomies, but still need to exist
|
|
* for $object_ids to be returned.
|
|
*
|
|
* It is possible to change the order that object_ids is returned by either
|
|
* 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.
|
|
*
|
|
* @param int|array $term_ids Term id or array of term ids of terms that will be used
|
|
* @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names
|
|
* @param array|string $args Change the order of the object_ids, either ASC or DESC
|
|
* @return WP_Error|array If the taxonomy does not exist, then WP_Error will be returned. On success
|
|
* the array can be empty meaning that there are no $object_ids found or it will return the $object_ids found.
|
|
*/
|
|
function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! is_array( $term_ids ) )
|
|
$term_ids = array( $term_ids );
|
|
|
|
if ( ! is_array( $taxonomies ) )
|
|
$taxonomies = array( $taxonomies );
|
|
|
|
foreach ( (array) $taxonomies as $taxonomy ) {
|
|
if ( ! taxonomy_exists( $taxonomy ) )
|
|
return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy' ) );
|
|
}
|
|
|
|
$defaults = array( 'order' => 'ASC' );
|
|
$args = wp_parse_args( $args, $defaults );
|
|
extract( $args, EXTR_SKIP );
|
|
|
|
$order = ( 'desc' == strtolower( $order ) ) ? 'DESC' : 'ASC';
|
|
|
|
$term_ids = array_map('intval', $term_ids );
|
|
|
|
$taxonomies = "'" . implode( "', '", $taxonomies ) . "'";
|
|
$term_ids = "'" . implode( "', '", $term_ids ) . "'";
|
|
|
|
$object_ids = $wpdb->get_col("SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tt.term_id IN ($term_ids) ORDER BY tr.object_id $order");
|
|
|
|
if ( ! $object_ids )
|
|
return array();
|
|
|
|
return $object_ids;
|
|
}
|
|
|
|
/**
|
|
* Given a taxonomy query, generates SQL to be appended to a main query.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @see WP_Tax_Query
|
|
*
|
|
* @param array $tax_query A compact tax query
|
|
* @param string $primary_table
|
|
* @param string $primary_id_column
|
|
* @return array
|
|
*/
|
|
function get_tax_sql( $tax_query, $primary_table, $primary_id_column ) {
|
|
$tax_query_obj = new WP_Tax_Query( $tax_query );
|
|
return $tax_query_obj->get_sql( $primary_table, $primary_id_column );
|
|
}
|
|
|
|
/**
|
|
* Container class for a multiple taxonomy query.
|
|
*
|
|
* @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
|
|
*
|
|
* @since 3.1.0
|
|
* @access public
|
|
* @var array
|
|
*/
|
|
public $queries = array();
|
|
|
|
/**
|
|
* The relation between the queries. Can be one of 'AND' or 'OR'.
|
|
*
|
|
* @since 3.1.0
|
|
* @access public
|
|
* @var string
|
|
*/
|
|
public $relation;
|
|
|
|
/**
|
|
* Standard response when the query should not return any rows.
|
|
*
|
|
* @since 3.2.0
|
|
* @access private
|
|
* @var string
|
|
*/
|
|
private static $no_results = array( 'join' => '', 'where' => ' AND 0 = 1' );
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* Parses a compact tax query and sets defaults.
|
|
*
|
|
* @since 3.1.0
|
|
* @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',
|
|
* ),
|
|
* )
|
|
*/
|
|
public function __construct( $tax_query ) {
|
|
if ( isset( $tax_query['relation'] ) && strtoupper( $tax_query['relation'] ) == 'OR' ) {
|
|
$this->relation = 'OR';
|
|
} else {
|
|
$this->relation = 'AND';
|
|
}
|
|
|
|
$defaults = array(
|
|
'taxonomy' => '',
|
|
'terms' => array(),
|
|
'include_children' => true,
|
|
'field' => 'term_id',
|
|
'operator' => 'IN',
|
|
);
|
|
|
|
foreach ( $tax_query as $query ) {
|
|
if ( ! is_array( $query ) )
|
|
continue;
|
|
|
|
$query = array_merge( $defaults, $query );
|
|
|
|
$query['terms'] = (array) $query['terms'];
|
|
|
|
$this->queries[] = $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
|
|
*/
|
|
public function get_sql( $primary_table, $primary_id_column ) {
|
|
global $wpdb;
|
|
|
|
$join = '';
|
|
$where = array();
|
|
$i = 0;
|
|
$count = count( $this->queries );
|
|
|
|
foreach ( $this->queries as $index => $query ) {
|
|
$this->clean_query( $query );
|
|
|
|
if ( is_wp_error( $query ) )
|
|
return self::$no_results;
|
|
|
|
extract( $query );
|
|
|
|
if ( 'IN' == $operator ) {
|
|
|
|
if ( empty( $terms ) ) {
|
|
if ( 'OR' == $this->relation ) {
|
|
if ( ( $index + 1 === $count ) && empty( $where ) )
|
|
return self::$no_results;
|
|
continue;
|
|
} else {
|
|
return self::$no_results;
|
|
}
|
|
}
|
|
|
|
$terms = implode( ',', $terms );
|
|
|
|
$alias = $i ? 'tt' . $i : $wpdb->term_relationships;
|
|
|
|
$join .= " INNER JOIN $wpdb->term_relationships";
|
|
$join .= $i ? " AS $alias" : '';
|
|
$join .= " ON ($primary_table.$primary_id_column = $alias.object_id)";
|
|
|
|
$where[] = "$alias.term_taxonomy_id $operator ($terms)";
|
|
} elseif ( 'NOT IN' == $operator ) {
|
|
|
|
if ( empty( $terms ) )
|
|
continue;
|
|
|
|
$terms = implode( ',', $terms );
|
|
|
|
$where[] = "$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 ) )
|
|
continue;
|
|
|
|
$num_terms = count( $terms );
|
|
|
|
$terms = implode( ',', $terms );
|
|
|
|
$where[] = "(
|
|
SELECT COUNT(1)
|
|
FROM $wpdb->term_relationships
|
|
WHERE term_taxonomy_id IN ($terms)
|
|
AND object_id = $primary_table.$primary_id_column
|
|
) = $num_terms";
|
|
}
|
|
|
|
$i++;
|
|
}
|
|
|
|
if ( ! empty( $where ) )
|
|
$where = ' AND ( ' . implode( " $this->relation ", $where ) . ' )';
|
|
else
|
|
$where = '';
|
|
|
|
return compact( 'join', 'where' );
|
|
}
|
|
|
|
/**
|
|
* Validates a single query.
|
|
*
|
|
* @since 3.2.0
|
|
* @access private
|
|
*
|
|
* @param array &$query The single query
|
|
*/
|
|
private function clean_query( &$query ) {
|
|
if ( ! taxonomy_exists( $query['taxonomy'] ) ) {
|
|
$query = new WP_Error( 'Invalid taxonomy' );
|
|
return;
|
|
}
|
|
|
|
$query['terms'] = array_unique( (array) $query['terms'] );
|
|
|
|
if ( is_taxonomy_hierarchical( $query['taxonomy'] ) && $query['include_children'] ) {
|
|
$this->transform_query( $query, 'term_id' );
|
|
|
|
if ( is_wp_error( $query ) )
|
|
return;
|
|
|
|
$children = array();
|
|
foreach ( $query['terms'] as $term ) {
|
|
$children = array_merge( $children, get_term_children( $term, $query['taxonomy'] ) );
|
|
$children[] = $term;
|
|
}
|
|
$query['terms'] = $children;
|
|
}
|
|
|
|
$this->transform_query( $query, 'term_taxonomy_id' );
|
|
}
|
|
|
|
/**
|
|
* Transforms a single query, from one field to another.
|
|
*
|
|
* @since 3.2.0
|
|
*
|
|
* @param array &$query The single query
|
|
* @param string $resulting_field The resulting field
|
|
*/
|
|
public function transform_query( &$query, $resulting_field ) {
|
|
global $wpdb;
|
|
|
|
if ( empty( $query['terms'] ) )
|
|
return;
|
|
|
|
if ( $query['field'] == $resulting_field )
|
|
return;
|
|
|
|
$resulting_field = sanitize_key( $resulting_field );
|
|
|
|
switch ( $query['field'] ) {
|
|
case 'slug':
|
|
case 'name':
|
|
$terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $query['terms'] ) ) . "'";
|
|
$terms = $wpdb->get_col( "
|
|
SELECT $wpdb->term_taxonomy.$resulting_field
|
|
FROM $wpdb->term_taxonomy
|
|
INNER JOIN $wpdb->terms USING (term_id)
|
|
WHERE taxonomy = '{$query['taxonomy']}'
|
|
AND $wpdb->terms.{$query['field']} IN ($terms)
|
|
" );
|
|
break;
|
|
case 'term_taxonomy_id':
|
|
$terms = implode( ',', array_map( 'intval', $query['terms'] ) );
|
|
$terms = $wpdb->get_col( "
|
|
SELECT $resulting_field
|
|
FROM $wpdb->term_taxonomy
|
|
WHERE term_taxonomy_id IN ($terms)
|
|
" );
|
|
break;
|
|
default:
|
|
$terms = implode( ',', array_map( 'intval', $query['terms'] ) );
|
|
$terms = $wpdb->get_col( "
|
|
SELECT $resulting_field
|
|
FROM $wpdb->term_taxonomy
|
|
WHERE taxonomy = '{$query['taxonomy']}'
|
|
AND term_id IN ($terms)
|
|
" );
|
|
}
|
|
|
|
if ( 'AND' == $query['operator'] && count( $terms ) < count( $query['terms'] ) ) {
|
|
$query = new WP_Error( 'Inexistent terms' );
|
|
return;
|
|
}
|
|
|
|
$query['terms'] = $terms;
|
|
$query['field'] = $resulting_field;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get all Term data from database by Term ID.
|
|
*
|
|
* The usage of the get_term function is to apply filters to a term object. It
|
|
* is possible to get a term object from the database before applying the
|
|
* filters.
|
|
*
|
|
* $term ID must be part of $taxonomy, to get from the database. Failure, might
|
|
* be able to be captured by the hooks. Failure would be the same value as $wpdb
|
|
* returns for the get_row method.
|
|
*
|
|
* There are two hooks, one is specifically for each term, named 'get_term', and
|
|
* the second is for the taxonomy name, 'term_$taxonomy'. Both hooks gets the
|
|
* term object, and the taxonomy name as parameters. Both hooks are expected to
|
|
* return a Term object.
|
|
*
|
|
* 'get_term' hook - Takes two parameters the term Object and the taxonomy name.
|
|
* Must return term object. Used in get_term() as a catch-all filter for every
|
|
* $term.
|
|
*
|
|
* 'get_$taxonomy' hook - Takes two parameters the term Object and the taxonomy
|
|
* name. Must return term object. $taxonomy will be the taxonomy name, so for
|
|
* example, if 'category', it would be 'get_category' as the filter name. Useful
|
|
* for custom taxonomies or plugging into default taxonomies.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
*
|
|
* @uses $wpdb
|
|
* @uses sanitize_term() Cleanses the term based on $filter context before returning.
|
|
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
|
|
*
|
|
* @param int|object $term If integer, will get from database. If object will apply filters and return $term.
|
|
* @param string $taxonomy Taxonomy name that $term is part of.
|
|
* @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
|
|
* @param string $filter Optional, default is raw or no WordPress defined filter will applied.
|
|
* @return mixed|null|WP_Error Term Row from database. Will return null if $term is empty. If taxonomy does not
|
|
* exist then WP_Error will be returned.
|
|
*/
|
|
function get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
|
|
global $wpdb;
|
|
|
|
if ( empty($term) ) {
|
|
$error = new WP_Error('invalid_term', __('Empty Term'));
|
|
return $error;
|
|
}
|
|
|
|
if ( ! taxonomy_exists($taxonomy) ) {
|
|
$error = new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
return $error;
|
|
}
|
|
|
|
if ( is_object($term) && empty($term->filter) ) {
|
|
wp_cache_add($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) ) {
|
|
$_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);
|
|
}
|
|
}
|
|
|
|
$_term = apply_filters('get_term', $_term, $taxonomy);
|
|
$_term = apply_filters("get_$taxonomy", $_term, $taxonomy);
|
|
$_term = sanitize_term($_term, $taxonomy, $filter);
|
|
|
|
if ( $output == OBJECT ) {
|
|
return $_term;
|
|
} elseif ( $output == ARRAY_A ) {
|
|
$__term = get_object_vars($_term);
|
|
return $__term;
|
|
} elseif ( $output == ARRAY_N ) {
|
|
$__term = array_values(get_object_vars($_term));
|
|
return $__term;
|
|
} else {
|
|
return $_term;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get all Term data from database by Term field and data.
|
|
*
|
|
* Warning: $value is not escaped for 'name' $field. You must do it yourself, if
|
|
* required.
|
|
*
|
|
* The default $field is 'id', therefore it is possible to also use null for
|
|
* field, but not recommended that you do so.
|
|
*
|
|
* If $value does not exist, the return value will be false. If $taxonomy exists
|
|
* and $field and $value combinations exist, the Term will be returned.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
*
|
|
* @uses $wpdb
|
|
* @uses sanitize_term() Cleanses the term based on $filter context before returning.
|
|
* @see sanitize_term_field() The $context param lists the available values for get_term_by() $filter param.
|
|
*
|
|
* @param string $field Either 'slug', 'name', 'id' (term_id), or 'term_taxonomy_id'
|
|
* @param string|int $value Search for this term value
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @param string $output Constant OBJECT, ARRAY_A, or ARRAY_N
|
|
* @param string $filter Optional, default is raw or no WordPress defined filter will applied.
|
|
* @return mixed Term Row from database. Will return false if $taxonomy does not exist or $term was not found.
|
|
*/
|
|
function get_term_by($field, $value, $taxonomy, $output = OBJECT, $filter = 'raw') {
|
|
global $wpdb;
|
|
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return false;
|
|
|
|
if ( 'slug' == $field ) {
|
|
$field = 't.slug';
|
|
$value = sanitize_title($value);
|
|
if ( empty($value) )
|
|
return false;
|
|
} else if ( 'name' == $field ) {
|
|
// Assume already escaped
|
|
$value = wp_unslash($value);
|
|
$field = 't.name';
|
|
} else if ( 'term_taxonomy_id' == $field ) {
|
|
$value = (int) $value;
|
|
$field = 'tt.term_taxonomy_id';
|
|
} else {
|
|
$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 )
|
|
return false;
|
|
|
|
wp_cache_add($term->term_id, $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 ) {
|
|
return $term;
|
|
} elseif ( $output == ARRAY_A ) {
|
|
return get_object_vars($term);
|
|
} elseif ( $output == ARRAY_N ) {
|
|
return array_values(get_object_vars($term));
|
|
} else {
|
|
return $term;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Merge all term children into a single array of their IDs.
|
|
*
|
|
* This recursive function will merge all of the children of $term into the same
|
|
* array of term IDs. Only useful for taxonomies which are hierarchical.
|
|
*
|
|
* Will return an empty array if $term does not exist in $taxonomy.
|
|
*
|
|
* @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
|
|
*
|
|
* @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
|
|
*/
|
|
function get_term_children( $term_id, $taxonomy ) {
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
$term_id = intval( $term_id );
|
|
|
|
$terms = _get_term_hierarchy($taxonomy);
|
|
|
|
if ( ! isset($terms[$term_id]) )
|
|
return array();
|
|
|
|
$children = $terms[$term_id];
|
|
|
|
foreach ( (array) $terms[$term_id] as $child ) {
|
|
if ( isset($terms[$child]) )
|
|
$children = array_merge($children, get_term_children($child, $taxonomy));
|
|
}
|
|
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Get sanitized Term field.
|
|
*
|
|
* Does checks for $term, based on the $taxonomy. The function is for contextual
|
|
* reasons and for simplicity of usage. See sanitize_term_field() for more
|
|
* information.
|
|
*
|
|
* @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
|
|
* @param string $context Optional, default is display. Look at sanitize_term_field() for available options.
|
|
* @return mixed Will return an empty string if $term is not an object or if $field is not set in $term.
|
|
*/
|
|
function get_term_field( $field, $term, $taxonomy, $context = 'display' ) {
|
|
$term = (int) $term;
|
|
$term = get_term( $term, $taxonomy );
|
|
if ( is_wp_error($term) )
|
|
return $term;
|
|
|
|
if ( !is_object($term) )
|
|
return '';
|
|
|
|
if ( !isset($term->$field) )
|
|
return '';
|
|
|
|
return sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
|
|
}
|
|
|
|
/**
|
|
* Sanitizes Term for editing.
|
|
*
|
|
* Return value is sanitize_term() and usage is for sanitizing the term for
|
|
* editing. Function is for contextual and simplicity.
|
|
*
|
|
* @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.
|
|
*/
|
|
function get_term_to_edit( $id, $taxonomy ) {
|
|
$term = get_term( $id, $taxonomy );
|
|
|
|
if ( is_wp_error($term) )
|
|
return $term;
|
|
|
|
if ( !is_object($term) )
|
|
return '';
|
|
|
|
return sanitize_term($term, $taxonomy, 'edit');
|
|
}
|
|
|
|
/**
|
|
* Retrieve the terms in a given taxonomy or list of taxonomies.
|
|
*
|
|
* You can fully inject any customizations to the query before it is sent, as
|
|
* well as control the output with a filter.
|
|
*
|
|
* The '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 '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 contain the value of 'name__like',
|
|
* case-insensitive. Default is empty string.
|
|
*
|
|
* description__like - Returned terms' descriptions will contain the value of
|
|
* 'description__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 $taxonomies do not exist.
|
|
*/
|
|
function get_terms($taxonomies, $args = '') {
|
|
global $wpdb;
|
|
$empty_array = array();
|
|
|
|
$single_taxonomy = ! is_array( $taxonomies ) || 1 === count( $taxonomies );
|
|
if ( ! is_array( $taxonomies ) )
|
|
$taxonomies = array( $taxonomies );
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( ! taxonomy_exists($taxonomy) ) {
|
|
$error = new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
return $error;
|
|
}
|
|
}
|
|
|
|
$defaults = array('orderby' => 'name', 'order' => 'ASC',
|
|
'hide_empty' => true, 'exclude' => array(), 'exclude_tree' => array(), 'include' => array(),
|
|
'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
|
|
'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '', 'description__like' => '',
|
|
'pad_counts' => false, 'offset' => '', 'search' => '', 'cache_domain' => 'core' );
|
|
$args = wp_parse_args( $args, $defaults );
|
|
$args['number'] = absint( $args['number'] );
|
|
$args['offset'] = absint( $args['offset'] );
|
|
if ( !$single_taxonomy || ! is_taxonomy_hierarchical( reset( $taxonomies ) ) ||
|
|
( '' !== $args['parent'] && 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;
|
|
}
|
|
|
|
$args = apply_filters( 'get_terms_args', $args, $taxonomies );
|
|
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( $child_of ) {
|
|
$hierarchy = _get_term_hierarchy( reset( $taxonomies ) );
|
|
if ( ! isset( $hierarchy[ $child_of ] ) )
|
|
return $empty_array;
|
|
}
|
|
|
|
if ( $parent ) {
|
|
$hierarchy = _get_term_hierarchy( reset( $taxonomies ) );
|
|
if ( ! isset( $hierarchy[ $parent ] ) )
|
|
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 = microtime( true );
|
|
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);
|
|
return $cache;
|
|
}
|
|
|
|
$_orderby = strtolower($orderby);
|
|
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 ( 'none' == $_orderby )
|
|
$orderby = '';
|
|
elseif ( empty($_orderby) || 'id' == $_orderby )
|
|
$orderby = 't.term_id';
|
|
else
|
|
$orderby = 't.name';
|
|
|
|
$orderby = apply_filters( 'get_terms_orderby', $orderby, $args, $taxonomies );
|
|
|
|
if ( !empty($orderby) )
|
|
$orderby = "ORDER BY $orderby";
|
|
else
|
|
$order = '';
|
|
|
|
$order = strtoupper( $order );
|
|
if ( '' !== $order && !in_array( $order, array( 'ASC', 'DESC' ) ) )
|
|
$order = 'ASC';
|
|
|
|
$where = "tt.taxonomy IN ('" . implode("', '", $taxonomies) . "')";
|
|
$inclusions = '';
|
|
if ( ! empty( $include ) ) {
|
|
$exclude = '';
|
|
$exclude_tree = '';
|
|
$inclusions = implode( ',', wp_parse_id_list( $include ) );
|
|
}
|
|
|
|
if ( ! empty( $inclusions ) ) {
|
|
$inclusions = ' AND t.term_id IN ( ' . $inclusions . ' )';
|
|
$where .= $inclusions;
|
|
}
|
|
|
|
$exclusions = '';
|
|
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 = implode( ',', array_map( 'intval', $excluded_children ) );
|
|
}
|
|
|
|
if ( ! empty( $exclude ) ) {
|
|
$exterms = wp_parse_id_list( $exclude );
|
|
if ( empty( $exclusions ) )
|
|
$exclusions = implode( ',', $exterms );
|
|
else
|
|
$exclusions .= ', ' . implode( ',', $exterms );
|
|
}
|
|
|
|
if ( ! empty( $exclusions ) )
|
|
$exclusions = ' AND t.term_id NOT IN (' . $exclusions . ')';
|
|
|
|
$exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies );
|
|
|
|
if ( ! empty( $exclusions ) )
|
|
$where .= $exclusions;
|
|
|
|
if ( !empty($slug) ) {
|
|
$slug = sanitize_title($slug);
|
|
$where .= " AND t.slug = '$slug'";
|
|
}
|
|
|
|
if ( !empty($name__like) ) {
|
|
$name__like = like_escape( $name__like );
|
|
$where .= $wpdb->prepare( " AND t.name LIKE %s", '%' . $name__like . '%' );
|
|
}
|
|
|
|
if ( ! empty( $description__like ) ) {
|
|
$description__like = like_escape( $description__like );
|
|
$where .= $wpdb->prepare( " AND tt.description LIKE %s", '%' . $description__like . '%' );
|
|
}
|
|
|
|
if ( '' !== $parent ) {
|
|
$parent = (int) $parent;
|
|
$where .= " AND tt.parent = '$parent'";
|
|
}
|
|
|
|
if ( 'count' == $fields )
|
|
$hierarchical = false;
|
|
|
|
if ( $hide_empty && !$hierarchical )
|
|
$where .= ' AND tt.count > 0';
|
|
|
|
// don't limit the query results when we have to descend the family tree
|
|
if ( $number && ! $hierarchical && ! $child_of && '' === $parent ) {
|
|
if ( $offset )
|
|
$limits = 'LIMIT ' . $offset . ',' . $number;
|
|
else
|
|
$limits = 'LIMIT ' . $number;
|
|
} else {
|
|
$limits = '';
|
|
}
|
|
|
|
if ( ! empty( $search ) ) {
|
|
$search = like_escape( $search );
|
|
$where .= $wpdb->prepare( ' AND ((t.name LIKE %s) OR (t.slug LIKE %s))', '%' . $search . '%', '%' . $search . '%' );
|
|
}
|
|
|
|
$selects = array();
|
|
switch ( $fields ) {
|
|
case 'all':
|
|
$selects = array( 't.*', 'tt.*' );
|
|
break;
|
|
case 'ids':
|
|
case 'id=>parent':
|
|
$selects = array( 't.term_id', 'tt.parent', 'tt.count' );
|
|
break;
|
|
case 'names':
|
|
$selects = array( 't.term_id', 'tt.parent', 'tt.count', 't.name' );
|
|
break;
|
|
case 'count':
|
|
$orderby = '';
|
|
$order = '';
|
|
$selects = array( 'COUNT(*)' );
|
|
break;
|
|
case 'id=>name':
|
|
$selects = array( 't.term_id', 't.name' );
|
|
break;
|
|
case 'id=>slug':
|
|
$selects = array( 't.term_id', 't.slug' );
|
|
break;
|
|
}
|
|
|
|
$_fields = $fields;
|
|
|
|
$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' );
|
|
$clauses = apply_filters( 'terms_clauses', compact( $pieces ), $taxonomies, $args );
|
|
foreach ( $pieces as $piece )
|
|
$$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : '';
|
|
|
|
$query = "SELECT $fields FROM $wpdb->terms AS t $join WHERE $where $orderby $order $limits";
|
|
|
|
$fields = $_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 ( empty($terms) ) {
|
|
wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS );
|
|
$terms = apply_filters('get_terms', array(), $taxonomies, $args);
|
|
return $terms;
|
|
}
|
|
|
|
if ( $child_of ) {
|
|
$children = _get_term_hierarchy( reset( $taxonomies ) );
|
|
if ( ! empty( $children ) )
|
|
$terms = _get_term_children( $child_of, $terms, reset( $taxonomies ) );
|
|
}
|
|
|
|
// Update term counts to include children.
|
|
if ( $pad_counts && 'all' == $fields )
|
|
_pad_term_counts( $terms, reset( $taxonomies ) );
|
|
|
|
// Make sure we show empty categories that have children.
|
|
if ( $hierarchical && $hide_empty && is_array( $terms ) ) {
|
|
foreach ( $terms as $k => $term ) {
|
|
if ( ! $term->count ) {
|
|
$children = _get_term_children( $term->term_id, $terms, reset( $taxonomies ) );
|
|
if ( is_array( $children ) )
|
|
foreach ( $children as $child )
|
|
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;
|
|
} elseif ( 'ids' == $fields ) {
|
|
while ( $term = array_shift( $terms ) )
|
|
$_terms[] = $term->term_id;
|
|
} elseif ( 'names' == $fields ) {
|
|
while ( $term = array_shift( $terms ) )
|
|
$_terms[] = $term->name;
|
|
} elseif ( 'id=>name' == $fields ) {
|
|
while ( $term = array_shift( $terms ) )
|
|
$_terms[$term->term_id] = $term->name;
|
|
} elseif ( 'id=>slug' == $fields ) {
|
|
while ( $term = array_shift( $terms ) )
|
|
$_terms[$term->term_id] = $term->slug;
|
|
}
|
|
|
|
if ( ! empty( $_terms ) )
|
|
$terms = $_terms;
|
|
|
|
if ( $number && is_array( $terms ) && count( $terms ) > $number )
|
|
$terms = array_slice( $terms, $offset, $number );
|
|
|
|
wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
|
|
|
|
$terms = apply_filters( 'get_terms', $terms, $taxonomies, $args );
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* Check if Term exists.
|
|
*
|
|
* Formerly is_term(), introduced in 2.3.0.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 3.0.0
|
|
*
|
|
* @uses $wpdb
|
|
*
|
|
* @param int|string $term The term to check
|
|
* @param string $taxonomy The taxonomy name to use
|
|
* @param int $parent ID of parent term under which to confine the exists search.
|
|
* @return mixed Returns 0 if the term does not exist. Returns the term ID if no taxonomy is specified
|
|
* and the term ID exists. Returns an array of the term ID and the taxonomy if the pairing exists.
|
|
*/
|
|
function term_exists($term, $taxonomy = '', $parent = 0) {
|
|
global $wpdb;
|
|
|
|
$select = "SELECT term_id FROM $wpdb->terms as t WHERE ";
|
|
$tax_select = "SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE ";
|
|
|
|
if ( is_int($term) ) {
|
|
if ( 0 == $term )
|
|
return 0;
|
|
$where = 't.term_id = %d';
|
|
if ( !empty($taxonomy) )
|
|
return $wpdb->get_row( $wpdb->prepare( $tax_select . $where . " AND tt.taxonomy = %s", $term, $taxonomy ), ARRAY_A );
|
|
else
|
|
return $wpdb->get_var( $wpdb->prepare( $select . $where, $term ) );
|
|
}
|
|
|
|
$term = trim( wp_unslash( $term ) );
|
|
|
|
if ( '' === $slug = sanitize_title($term) )
|
|
return 0;
|
|
|
|
$where = 't.slug = %s';
|
|
$else_where = 't.name = %s';
|
|
$where_fields = array($slug);
|
|
$else_where_fields = array($term);
|
|
if ( !empty($taxonomy) ) {
|
|
$parent = (int) $parent;
|
|
if ( $parent > 0 ) {
|
|
$where_fields[] = $parent;
|
|
$else_where_fields[] = $parent;
|
|
$where .= ' AND tt.parent = %d';
|
|
$else_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) )
|
|
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);
|
|
}
|
|
|
|
if ( $result = $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $where", $where_fields) ) )
|
|
return $result;
|
|
|
|
return $wpdb->get_var( $wpdb->prepare("SELECT term_id FROM $wpdb->terms as t WHERE $else_where", $else_where_fields) );
|
|
}
|
|
|
|
/**
|
|
* Check if a term is an ancestor of another term.
|
|
*
|
|
* You can use either an id or the term object for both parameters.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param int|object $term1 ID or object to check if this is the parent term.
|
|
* @param int|object $term2 The child term.
|
|
* @param string $taxonomy Taxonomy name that $term1 and $term2 belong to.
|
|
* @return bool Whether $term2 is child of $term1
|
|
*/
|
|
function term_is_ancestor_of( $term1, $term2, $taxonomy ) {
|
|
if ( ! isset( $term1->term_id ) )
|
|
$term1 = get_term( $term1, $taxonomy );
|
|
if ( ! isset( $term2->parent ) )
|
|
$term2 = get_term( $term2, $taxonomy );
|
|
|
|
if ( empty( $term1->term_id ) || empty( $term2->parent ) )
|
|
return false;
|
|
if ( $term2->parent == $term1->term_id )
|
|
return true;
|
|
|
|
return term_is_ancestor_of( $term1, get_term( $term2->parent, $taxonomy ), $taxonomy );
|
|
}
|
|
|
|
/**
|
|
* Sanitize Term all fields.
|
|
*
|
|
* Relies 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 2.3.0
|
|
*
|
|
* @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 $context Default is 'display'.
|
|
* @return array|object Term with all fields sanitized
|
|
*/
|
|
function sanitize_term($term, $taxonomy, $context = 'display') {
|
|
|
|
$fields = array( 'term_id', 'name', 'description', 'slug', 'count', 'parent', 'term_group', 'term_taxonomy_id', 'object_id' );
|
|
|
|
$do_object = is_object( $term );
|
|
|
|
$term_id = $do_object ? $term->term_id : (isset($term['term_id']) ? $term['term_id'] : 0);
|
|
|
|
foreach ( (array) $fields as $field ) {
|
|
if ( $do_object ) {
|
|
if ( isset($term->$field) )
|
|
$term->$field = sanitize_term_field($field, $term->$field, $term_id, $taxonomy, $context);
|
|
} else {
|
|
if ( isset($term[$field]) )
|
|
$term[$field] = sanitize_term_field($field, $term[$field], $term_id, $taxonomy, $context);
|
|
}
|
|
}
|
|
|
|
if ( $do_object )
|
|
$term->filter = $context;
|
|
else
|
|
$term['filter'] = $context;
|
|
|
|
return $term;
|
|
}
|
|
|
|
/**
|
|
* 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 2.3.0
|
|
*
|
|
* @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) {
|
|
$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;
|
|
}
|
|
|
|
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 )
|
|
$value = esc_html($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);
|
|
// 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 )
|
|
$value = esc_attr($value);
|
|
else if ( 'js' == $context )
|
|
$value = esc_js($value);
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Count how many terms are in Taxonomy.
|
|
*
|
|
* 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|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);
|
|
$args = wp_parse_args($args, $defaults);
|
|
|
|
// backwards compatibility
|
|
if ( isset($args['ignore_empty']) ) {
|
|
$args['hide_empty'] = $args['ignore_empty'];
|
|
unset($args['ignore_empty']);
|
|
}
|
|
|
|
$args['fields'] = 'count';
|
|
|
|
return get_terms($taxonomy, $args);
|
|
}
|
|
|
|
/**
|
|
* Will unlink the object from the taxonomy or taxonomies.
|
|
*
|
|
* Will remove all relationships between the object and any terms in
|
|
* a particular taxonomy or taxonomies. Does not remove the term or
|
|
* taxonomy itself.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
* @uses wp_remove_object_terms()
|
|
*
|
|
* @param int $object_id The term Object Id that refers to the term
|
|
* @param string|array $taxonomies List of Taxonomy Names or single Taxonomy name.
|
|
*/
|
|
function wp_delete_object_term_relationships( $object_id, $taxonomies ) {
|
|
$object_id = (int) $object_id;
|
|
|
|
if ( !is_array($taxonomies) )
|
|
$taxonomies = array($taxonomies);
|
|
|
|
foreach ( (array) $taxonomies as $taxonomy ) {
|
|
$term_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids' ) );
|
|
$term_ids = array_map( 'intval', $term_ids );
|
|
wp_remove_object_terms( $object_id, $term_ids, $taxonomy );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes a term from the database.
|
|
*
|
|
* If the term is a parent of other terms, then the children will be updated to
|
|
* that term's parent.
|
|
*
|
|
* The $args 'default' will only override the terms found, if there is only one
|
|
* term found. Any other and the found terms are used.
|
|
*
|
|
* The $args 'force_default' will force the term supplied as default to be
|
|
* assigned even if the object was not going to be termless
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
*
|
|
* @uses $wpdb
|
|
* @uses do_action() Calls both 'delete_term' and 'delete_$taxonomy' action
|
|
* hooks, passing term ID, term taxonomy ID, and deleted term object. 'delete_term'
|
|
* also gets taxonomy as the third 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 ( ! $ids = term_exists($term, $taxonomy) )
|
|
return false;
|
|
if ( is_wp_error( $ids ) )
|
|
return $ids;
|
|
|
|
$tt_id = $ids['term_taxonomy_id'];
|
|
|
|
$defaults = array();
|
|
|
|
if ( 'category' == $taxonomy ) {
|
|
$defaults['default'] = get_option( 'default_category' );
|
|
if ( $defaults['default'] == $term )
|
|
return 0; // Don't delete the default category
|
|
}
|
|
|
|
$args = wp_parse_args($args, $defaults);
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( isset( $default ) ) {
|
|
$default = (int) $default;
|
|
if ( ! term_exists($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;
|
|
|
|
$edit_tt_ids = $wpdb->get_col( "SELECT `term_taxonomy_id` FROM $wpdb->term_taxonomy WHERE `parent` = " . (int)$term_obj->term_id );
|
|
do_action( 'edit_term_taxonomies', $edit_tt_ids );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'parent' ), array( 'parent' => $term_obj->term_id) + compact( 'taxonomy' ) );
|
|
do_action( 'edited_term_taxonomies', $edit_tt_ids );
|
|
}
|
|
|
|
$objects = $wpdb->get_col( $wpdb->prepare( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $tt_id ) );
|
|
|
|
foreach ( (array) $objects as $object ) {
|
|
$terms = wp_get_object_terms($object, $taxonomy, array('fields' => 'ids', 'orderby' => 'none'));
|
|
if ( 1 == count($terms) && isset($default) ) {
|
|
$terms = array($default);
|
|
} else {
|
|
$terms = array_diff($terms, array($term));
|
|
if (isset($default) && isset($force_default) && $force_default)
|
|
$terms = array_merge($terms, array($default));
|
|
}
|
|
$terms = array_map('intval', $terms);
|
|
wp_set_object_terms($object, $terms, $taxonomy);
|
|
}
|
|
|
|
// Clean the relationship caches for all object types using this term
|
|
$tax_object = get_taxonomy( $taxonomy );
|
|
foreach ( $tax_object->object_type as $object_type )
|
|
clean_object_term_cache( $objects, $object_type );
|
|
|
|
// Get the object before deletion so we can pass to actions below
|
|
$deleted_term = get_term( $term, $taxonomy );
|
|
|
|
do_action( 'delete_term_taxonomy', $tt_id );
|
|
$wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) );
|
|
do_action( 'deleted_term_taxonomy', $tt_id );
|
|
|
|
// Delete the term if no taxonomies use it.
|
|
if ( !$wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term) ) )
|
|
$wpdb->delete( $wpdb->terms, array( 'term_id' => $term ) );
|
|
|
|
clean_term_cache($term, $taxonomy);
|
|
|
|
do_action( 'delete_term', $term, $tt_id, $taxonomy, $deleted_term );
|
|
do_action( "delete_$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;
|
|
* Zero on attempted deletion of default Category; WP_Error object is also a possibility.
|
|
*/
|
|
function wp_delete_category( $cat_ID ) {
|
|
return wp_delete_term( $cat_ID, 'category' );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the terms associated with the given object(s), in the supplied taxonomies.
|
|
*
|
|
* 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
|
|
*
|
|
* @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 $taxonomies don't exist.
|
|
*/
|
|
function wp_get_object_terms($object_ids, $taxonomies, $args = array()) {
|
|
global $wpdb;
|
|
|
|
if ( empty( $object_ids ) || empty( $taxonomies ) )
|
|
return array();
|
|
|
|
if ( !is_array($taxonomies) )
|
|
$taxonomies = array($taxonomies);
|
|
|
|
foreach ( (array) $taxonomies as $taxonomy ) {
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
}
|
|
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = array($object_ids);
|
|
$object_ids = array_map('intval', $object_ids);
|
|
|
|
$defaults = array('orderby' => 'name', 'order' => 'ASC', 'fields' => 'all');
|
|
$args = wp_parse_args( $args, $defaults );
|
|
|
|
$terms = array();
|
|
if ( count($taxonomies) > 1 ) {
|
|
foreach ( $taxonomies as $index => $taxonomy ) {
|
|
$t = get_taxonomy($taxonomy);
|
|
if ( isset($t->args) && is_array($t->args) && $args != array_merge($args, $t->args) ) {
|
|
unset($taxonomies[$index]);
|
|
$terms = array_merge($terms, wp_get_object_terms($object_ids, $taxonomy, array_merge($args, $t->args)));
|
|
}
|
|
}
|
|
} else {
|
|
$t = get_taxonomy($taxonomies[0]);
|
|
if ( isset($t->args) && is_array($t->args) )
|
|
$args = array_merge($args, $t->args);
|
|
}
|
|
|
|
extract($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 if ( 'none' == $orderby ) {
|
|
$orderby = '';
|
|
$order = '';
|
|
} else {
|
|
$orderby = 't.term_id';
|
|
}
|
|
|
|
// tt_ids queries can only be none or tr.term_taxonomy_id
|
|
if ( ('tt_ids' == $fields) && !empty($orderby) )
|
|
$orderby = 'tr.term_taxonomy_id';
|
|
|
|
if ( !empty($orderby) )
|
|
$orderby = "ORDER BY $orderby";
|
|
|
|
$order = strtoupper( $order );
|
|
if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ) ) )
|
|
$order = 'ASC';
|
|
|
|
$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 ( 'slugs' == $fields )
|
|
$select_this = 't.slug';
|
|
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) $orderby $order";
|
|
|
|
if ( 'all' == $fields || 'all_with_object_id' == $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 );
|
|
} else if ( 'ids' == $fields || 'names' == $fields || 'slugs' == $fields ) {
|
|
$_terms = $wpdb->get_col( $query );
|
|
$_field = ( 'ids' == $fields ) ? 'term_id' : 'name';
|
|
foreach ( $_terms as $key => $term ) {
|
|
$_terms[$key] = sanitize_term_field( $_field, $term, $term, $taxonomy, 'raw' );
|
|
}
|
|
$terms = array_merge( $terms, $_terms );
|
|
} else if ( 'tt_ids' == $fields ) {
|
|
$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 )
|
|
$terms = array();
|
|
|
|
return apply_filters('wp_get_object_terms', $terms, $object_ids, $taxonomies, $args);
|
|
}
|
|
|
|
/**
|
|
* Add a new term to the database.
|
|
*
|
|
* A non-existent term is inserted in the following sequence:
|
|
* 1. The term is added to the term table, then related to the taxonomy.
|
|
* 2. If everything is correct, several actions are fired.
|
|
* 3. The 'term_id_filter' is evaluated.
|
|
* 4. The term cache is cleaned.
|
|
* 5. Several more actions are fired.
|
|
* 6. An array is returned containing the term_id and term_taxonomy_id.
|
|
*
|
|
* If the 'slug' argument is not empty, then it is checked to see if the term
|
|
* is invalid. If it is not a valid, existing term, it is added and the term_id
|
|
* is given.
|
|
*
|
|
* If the taxonomy is hierarchical, and the 'parent' argument is not empty,
|
|
* the term is inserted and the term_id will be given.
|
|
|
|
* Error handling:
|
|
* If $taxonomy does not exist or $term is empty,
|
|
* a WP_Error object will be returned.
|
|
*
|
|
* If the term already exists on the same hierarchical level,
|
|
* or the term slug and name are not unique, a WP_Error object will be returned.
|
|
*
|
|
* @global wpdb $wpdb The WordPress database object.
|
|
|
|
* @since 2.3.0
|
|
*
|
|
* @param string $term The term to add or update.
|
|
* @param string $taxonomy The taxonomy to which to add the term
|
|
* @param array|string $args {
|
|
* Arguments to change values of the inserted term.
|
|
*
|
|
* @type string 'alias_of' Slug of the term to make this term an alias of.
|
|
* Default empty string. Accepts a term slug.
|
|
* @type string 'description' The term description.
|
|
* Default empty string.
|
|
* @type int 'parent' The id of the parent term.
|
|
* Default 0.
|
|
* @type string 'slug' The term slug to use.
|
|
* Default empty string.
|
|
* }
|
|
* @return array|WP_Error An array containing the term_id and term_taxonomy_id, WP_Error otherwise.
|
|
*/
|
|
function wp_insert_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
$term = apply_filters( 'pre_insert_term', $term, $taxonomy );
|
|
if ( is_wp_error( $term ) )
|
|
return $term;
|
|
|
|
if ( is_int($term) && 0 == $term )
|
|
return new WP_Error('invalid_term_id', __('Invalid term ID'));
|
|
|
|
if ( '' == trim($term) )
|
|
return new WP_Error('empty_term_name', __('A name is required for this term'));
|
|
|
|
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
|
|
$args = wp_parse_args($args, $defaults);
|
|
$args['name'] = $term;
|
|
$args['taxonomy'] = $taxonomy;
|
|
$args = sanitize_term($args, $taxonomy, 'db');
|
|
extract($args, EXTR_SKIP);
|
|
|
|
// expected_slashed ($name)
|
|
$name = wp_unslash($name);
|
|
$description = wp_unslash($description);
|
|
|
|
$slug_provided = ! empty( $slug );
|
|
if ( ! $slug_provided ) {
|
|
$slug = sanitize_title($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;
|
|
do_action( 'edit_terms', $alias->term_id, $taxonomy );
|
|
$wpdb->update($wpdb->terms, compact('term_group'), array('term_id' => $alias->term_id) );
|
|
do_action( 'edited_terms', $alias->term_id, $taxonomy );
|
|
}
|
|
}
|
|
|
|
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) ) {
|
|
if ( $slug_provided ) {
|
|
return new WP_Error( 'term_exists', __( 'A term with the name and slug provided already exists with this parent.' ), $exists['term_id'] );
|
|
} else {
|
|
return new WP_Error( 'term_exists', __( 'A term with the name provided already exists with this parent.' ), $exists['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;
|
|
}
|
|
} 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 and slug 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) $wpdb->insert_id;
|
|
}
|
|
|
|
// Seems unreachable, However, Is used in the case that a term name is provided, which sanitizes to an empty string.
|
|
if ( empty($slug) ) {
|
|
$slug = sanitize_title($slug, $term_id);
|
|
do_action( 'edit_terms', $term_id, $taxonomy );
|
|
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
|
|
do_action( 'edited_terms', $term_id, $taxonomy );
|
|
}
|
|
|
|
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
|
|
|
|
if ( !empty($tt_id) )
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
|
|
$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);
|
|
|
|
$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);
|
|
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
}
|
|
|
|
/**
|
|
* 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 2.3.0
|
|
* @uses wp_remove_object_terms()
|
|
*
|
|
* @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 $append If false will delete difference of terms.
|
|
* @return array|WP_Error Affected Term IDs
|
|
*/
|
|
function wp_set_object_terms($object_id, $terms, $taxonomy, $append = false) {
|
|
global $wpdb;
|
|
|
|
$object_id = (int) $object_id;
|
|
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
if ( !is_array($terms) )
|
|
$terms = array($terms);
|
|
|
|
if ( ! $append )
|
|
$old_tt_ids = wp_get_object_terms($object_id, $taxonomy, array('fields' => 'tt_ids', 'orderby' => 'none'));
|
|
else
|
|
$old_tt_ids = array();
|
|
|
|
$tt_ids = array();
|
|
$term_ids = array();
|
|
$new_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;
|
|
$term_info = wp_insert_term($term, $taxonomy);
|
|
}
|
|
if ( is_wp_error($term_info) )
|
|
return $term_info;
|
|
$term_ids[] = $term_info['term_id'];
|
|
$tt_id = $term_info['term_taxonomy_id'];
|
|
$tt_ids[] = $tt_id;
|
|
|
|
if ( $wpdb->get_var( $wpdb->prepare( "SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id = %d", $object_id, $tt_id ) ) )
|
|
continue;
|
|
do_action( 'add_term_relationship', $object_id, $tt_id );
|
|
$wpdb->insert( $wpdb->term_relationships, array( 'object_id' => $object_id, 'term_taxonomy_id' => $tt_id ) );
|
|
do_action( 'added_term_relationship', $object_id, $tt_id );
|
|
$new_tt_ids[] = $tt_id;
|
|
}
|
|
|
|
if ( $new_tt_ids )
|
|
wp_update_term_count( $new_tt_ids, $taxonomy );
|
|
|
|
if ( ! $append ) {
|
|
$delete_tt_ids = array_diff( $old_tt_ids, $tt_ids );
|
|
|
|
if ( $delete_tt_ids ) {
|
|
$in_delete_tt_ids = "'" . implode( "', '", $delete_tt_ids ) . "'";
|
|
$delete_term_ids = $wpdb->get_col( $wpdb->prepare( "SELECT tt.term_id FROM $wpdb->term_taxonomy AS tt WHERE tt.taxonomy = %s AND tt.term_taxonomy_id IN ($in_delete_tt_ids)", $taxonomy ) );
|
|
$delete_term_ids = array_map( 'intval', $delete_term_ids );
|
|
|
|
$remove = wp_remove_object_terms( $object_id, $delete_term_ids, $taxonomy );
|
|
if ( is_wp_error( $remove ) ) {
|
|
return $remove;
|
|
}
|
|
}
|
|
}
|
|
|
|
$t = get_taxonomy($taxonomy);
|
|
if ( ! $append && isset($t->sort) && $t->sort ) {
|
|
$values = array();
|
|
$term_order = 0;
|
|
$final_tt_ids = wp_get_object_terms($object_id, $taxonomy, array('fields' => 'tt_ids'));
|
|
foreach ( $tt_ids as $tt_id )
|
|
if ( in_array($tt_id, $final_tt_ids) )
|
|
$values[] = $wpdb->prepare( "(%d, %d, %d)", $object_id, $tt_id, ++$term_order);
|
|
if ( $values )
|
|
if ( false === $wpdb->query( "INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id, term_order) VALUES " . 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' );
|
|
|
|
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.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 3.6.0
|
|
* @uses wp_set_object_terms()
|
|
*
|
|
* @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.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 3.6.0
|
|
* @uses $wpdb
|
|
*
|
|
* @uses apply_filters() Calls 'delete_term_relationships' hook with object_id and tt_ids as parameters.
|
|
* @uses apply_filters() Calls 'deleted_term_relationships' hook with object_id and tt_ids as parameters.
|
|
*
|
|
* @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'];
|
|
}
|
|
|
|
if ( $tt_ids ) {
|
|
$in_tt_ids = "'" . implode( "', '", $tt_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 ) );
|
|
do_action( 'deleted_term_relationships', $object_id, $tt_ids );
|
|
wp_update_term_count( $tt_ids, $taxonomy );
|
|
|
|
return (bool) $deleted;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* hierarchical 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 truly unique.
|
|
*
|
|
* The only purpose for $term is for appending a parent, if one exists.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
* @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 ( ! term_exists( $slug ) )
|
|
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) ) {
|
|
$the_parent = $term->parent;
|
|
while ( ! empty($the_parent) ) {
|
|
$parent_term = get_term($the_parent, $term->taxonomy);
|
|
if ( is_wp_error($parent_term) || empty($parent_term) )
|
|
break;
|
|
$slug .= '-' . $parent_term->slug;
|
|
if ( ! term_exists( $slug ) )
|
|
return $slug;
|
|
|
|
if ( empty($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( $term->term_id ) )
|
|
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s AND term_id != %d", $slug, $term->term_id );
|
|
else
|
|
$query = $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $slug );
|
|
|
|
if ( $wpdb->get_var( $query ) ) {
|
|
$num = 2;
|
|
do {
|
|
$alt_slug = $slug . "-$num";
|
|
$num++;
|
|
$slug_check = $wpdb->get_var( $wpdb->prepare( "SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug ) );
|
|
} while ( $slug_check );
|
|
$slug = $alt_slug;
|
|
}
|
|
|
|
return $slug;
|
|
}
|
|
|
|
/**
|
|
* 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 2.3.0
|
|
*
|
|
* @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.
|
|
*
|
|
* @param int $term_id The ID of the term
|
|
* @param string $taxonomy The context in which to relate the term to the object.
|
|
* @param array|string $args Overwrite term field values
|
|
* @return array|WP_Error Returns Term ID and Taxonomy Term ID
|
|
*/
|
|
function wp_update_term( $term_id, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! taxonomy_exists($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
$term_id = (int) $term_id;
|
|
|
|
// First, get all of the original args
|
|
$term = get_term ($term_id, $taxonomy, ARRAY_A);
|
|
|
|
if ( is_wp_error( $term ) )
|
|
return $term;
|
|
|
|
// Escape data pulled from DB.
|
|
$term = wp_slash($term);
|
|
|
|
// Merge old and new args with new args overwriting old ones.
|
|
$args = array_merge($term, $args);
|
|
|
|
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
|
|
$args = wp_parse_args($args, $defaults);
|
|
$args = sanitize_term($args, $taxonomy, 'db');
|
|
extract($args, EXTR_SKIP);
|
|
|
|
// expected_slashed ($name)
|
|
$name = wp_unslash($name);
|
|
$description = wp_unslash($description);
|
|
|
|
if ( '' == trim($name) )
|
|
return new WP_Error('empty_term_name', __('A name is required for this term'));
|
|
|
|
$empty_slug = false;
|
|
if ( empty($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;
|
|
do_action( 'edit_terms', $alias->term_id, $taxonomy );
|
|
$wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) );
|
|
do_action( 'edited_terms', $alias->term_id, $taxonomy );
|
|
}
|
|
}
|
|
|
|
// 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 );
|
|
|
|
// 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));
|
|
}
|
|
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, $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) );
|
|
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent' ), array( 'term_taxonomy_id' => $tt_id ) );
|
|
do_action( 'edited_term_taxonomy', $tt_id, $taxonomy );
|
|
|
|
// Clean the relationship caches for all object types using this term
|
|
$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 );
|
|
|
|
do_action("edit_term", $term_id, $tt_id, $taxonomy);
|
|
do_action("edit_$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, $taxonomy);
|
|
do_action("edited_$taxonomy", $term_id, $tt_id);
|
|
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
}
|
|
|
|
/**
|
|
* Enable or disable term counting.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param bool $defer Optional. Enable if true, disable if false.
|
|
* @return bool Whether term counting is enabled or disabled.
|
|
*/
|
|
function wp_defer_term_counting($defer=null) {
|
|
static $_defer = false;
|
|
|
|
if ( is_bool($defer) ) {
|
|
$_defer = $defer;
|
|
// flush any deferred counts
|
|
if ( !$defer )
|
|
wp_update_term_count( null, null, true );
|
|
}
|
|
|
|
return $_defer;
|
|
}
|
|
|
|
/**
|
|
* Updates the amount of terms in taxonomy.
|
|
*
|
|
* If there is a taxonomy callback applied, then it will be called for updating
|
|
* the count.
|
|
*
|
|
* The default action is to count what the amount of terms have the relationship
|
|
* of term ID. Once that is done, then update the database.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
* @uses $wpdb
|
|
*
|
|
* @param int|array $terms The term_taxonomy_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 ( $do_deferred ) {
|
|
foreach ( (array) array_keys($_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 );
|
|
}
|
|
|
|
/**
|
|
* Perform term count update immediately.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param array $terms The term_taxonomy_id of terms to update.
|
|
* @param string $taxonomy The context of the term.
|
|
* @return bool Always true when complete.
|
|
*/
|
|
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, $taxonomy);
|
|
} else {
|
|
$object_types = (array) $taxonomy->object_type;
|
|
foreach ( $object_types as &$object_type ) {
|
|
if ( 0 === strpos( $object_type, 'attachment:' ) )
|
|
list( $object_type ) = explode( ':', $object_type );
|
|
}
|
|
|
|
if ( $object_types == array_filter( $object_types, 'post_type_exists' ) ) {
|
|
// Only post types are attached to this taxonomy
|
|
_update_post_term_count( $terms, $taxonomy );
|
|
} else {
|
|
// Default count updater
|
|
_update_generic_term_count( $terms, $taxonomy );
|
|
}
|
|
}
|
|
|
|
clean_term_cache($terms, '', false);
|
|
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// Cache
|
|
//
|
|
|
|
/**
|
|
* Removes the taxonomy relationship to terms from the cache.
|
|
*
|
|
* Will remove the entire taxonomy relationship containing term $object_id. The
|
|
* term IDs have to exist within the taxonomy $object_type for the deletion to
|
|
* take place.
|
|
*
|
|
* @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 $object_type The taxonomy object type
|
|
*/
|
|
function clean_object_term_cache($object_ids, $object_type) {
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = array($object_ids);
|
|
|
|
$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);
|
|
}
|
|
|
|
/**
|
|
* Will remove all of the term ids from the cache.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
* @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.
|
|
* @param bool $clean_taxonomy Whether to clean taxonomy wide caches (true), or just individual term object caches (false). Default is true.
|
|
*/
|
|
function clean_term_cache($ids, $taxonomy = '', $clean_taxonomy = true) {
|
|
global $wpdb;
|
|
|
|
if ( !is_array($ids) )
|
|
$ids = array($ids);
|
|
|
|
$taxonomies = array();
|
|
// If no taxonomy, assume tt_ids.
|
|
if ( empty($taxonomy) ) {
|
|
$tt_ids = array_map('intval', $ids);
|
|
$tt_ids = implode(', ', $tt_ids);
|
|
$terms = $wpdb->get_results("SELECT term_id, taxonomy FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)");
|
|
$ids = array();
|
|
foreach ( (array) $terms as $term ) {
|
|
$taxonomies[] = $term->taxonomy;
|
|
$ids[] = $term->term_id;
|
|
wp_cache_delete($term->term_id, $term->taxonomy);
|
|
}
|
|
$taxonomies = array_unique($taxonomies);
|
|
} else {
|
|
$taxonomies = array($taxonomy);
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
foreach ( $ids as $id ) {
|
|
wp_cache_delete($id, $taxonomy);
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( $clean_taxonomy ) {
|
|
wp_cache_delete('all_ids', $taxonomy);
|
|
wp_cache_delete('get', $taxonomy);
|
|
delete_option("{$taxonomy}_children");
|
|
// Regenerate {$taxonomy}_children
|
|
_get_term_hierarchy($taxonomy);
|
|
}
|
|
|
|
do_action('clean_term_cache', $ids, $taxonomy);
|
|
}
|
|
|
|
wp_cache_set( 'last_changed', microtime( true ), '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 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;
|
|
}
|
|
|
|
/**
|
|
* 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 2.3.0
|
|
* @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 $object_ids. False if
|
|
*/
|
|
function update_object_term_cache($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, array('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_add( $id, $terms, "{$taxonomy}_relationships" );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates Terms to Taxonomy in cache.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 2.3.0
|
|
*
|
|
* @param array $terms List of Term objects to change
|
|
* @param string $taxonomy Optional. Update Term to this taxonomy in cache
|
|
*/
|
|
function update_term_cache($terms, $taxonomy = '') {
|
|
foreach ( (array) $terms as $term ) {
|
|
$term_taxonomy = $taxonomy;
|
|
if ( empty($term_taxonomy) )
|
|
$term_taxonomy = $term->taxonomy;
|
|
|
|
wp_cache_add($term->term_id, $term, $term_taxonomy);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Private
|
|
//
|
|
|
|
/**
|
|
* Retrieves children of taxonomy as Term IDs.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3.0
|
|
*
|
|
* @uses update_option() Stores all of the children in "$taxonomy_children"
|
|
* option. That is the name of the taxonomy, immediately followed by '_children'.
|
|
*
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @return array Empty if $taxonomy isn't hierarchical or returns children as Term IDs.
|
|
*/
|
|
function _get_term_hierarchy($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, array('get' => 'all', 'orderby' => 'id', 'fields' => 'id=>parent'));
|
|
foreach ( $terms as $term_id => $parent ) {
|
|
if ( $parent > 0 )
|
|
$children[$parent][] = $term_id;
|
|
}
|
|
update_option("{$taxonomy}_children", $children);
|
|
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Get the subset of $terms that are descendants of $term_id.
|
|
*
|
|
* If $terms is an array of objects, then _get_term_children returns an array of objects.
|
|
* If $terms is an array of IDs, then _get_term_children returns an array of IDs.
|
|
*
|
|
* @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.
|
|
* @return array The subset of $terms that are descendants of $term_id.
|
|
*/
|
|
function _get_term_children($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 ( (array) $terms as $term ) {
|
|
$use_id = false;
|
|
if ( !is_object($term) ) {
|
|
$term = get_term($term, $taxonomy);
|
|
if ( is_wp_error( $term ) )
|
|
return $term;
|
|
$use_id = true;
|
|
}
|
|
|
|
if ( $term->term_id == $term_id ) {
|
|
if ( isset( $has_children[$term_id] ) ) {
|
|
$current_id = $term_id;
|
|
while ( $current_id > 0 ) {
|
|
foreach ( $has_children[$current_id] as $t_id ) {
|
|
if ( $use_id ) {
|
|
$term_list[] = $t_id;
|
|
} else {
|
|
$term_list[] = get_term( $t_id, $taxonomy );
|
|
}
|
|
}
|
|
|
|
$current_id = isset( $has_children[$t_id] ) ? $t_id : 0;
|
|
}
|
|
}
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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 2.3.0
|
|
* @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 hierarchical taxonomies like post categories.
|
|
if ( !is_taxonomy_hierarchical( $taxonomy ) )
|
|
return;
|
|
|
|
$term_hier = _get_term_hierarchy($taxonomy);
|
|
|
|
if ( empty($term_hier) )
|
|
return;
|
|
|
|
$term_items = array();
|
|
|
|
foreach ( (array) $terms as $key => $term ) {
|
|
$terms_by_id[$term->term_id] = & $terms[$key];
|
|
$term_ids[$term->term_taxonomy_id] = $term->term_id;
|
|
}
|
|
|
|
// Get the object and term ids and stick them in a lookup table
|
|
$tax_obj = get_taxonomy($taxonomy);
|
|
$object_types = esc_sql($tax_obj->object_type);
|
|
$results = $wpdb->get_results("SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships INNER JOIN $wpdb->posts ON object_id = ID WHERE term_taxonomy_id IN (" . implode(',', array_keys($term_ids)) . ") AND post_type IN ('" . implode("', '", $object_types) . "') AND post_status = 'publish'");
|
|
foreach ( $results as $row ) {
|
|
$id = $term_ids[$row->term_taxonomy_id];
|
|
$term_items[$id][$row->object_id] = isset($term_items[$id][$row->object_id]) ? ++$term_items[$id][$row->object_id] : 1;
|
|
}
|
|
|
|
// Touch every ancestor's lookup row for each post in each term
|
|
foreach ( $term_ids as $term_id ) {
|
|
$child = $term_id;
|
|
while ( !empty( $terms_by_id[$child] ) && $parent = $terms_by_id[$child]->parent ) {
|
|
if ( !empty( $term_items[$term_id] ) )
|
|
foreach ( $term_items[$term_id] as $item_id => $touches ) {
|
|
$term_items[$parent][$item_id] = isset($term_items[$parent][$item_id]) ? ++$term_items[$parent][$item_id]: 1;
|
|
}
|
|
$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
|
|
//
|
|
|
|
/**
|
|
* Will update term count based on object types of the current taxonomy.
|
|
*
|
|
* Private function for the default callback for post_tag and category
|
|
* taxonomies.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @access private
|
|
* @since 2.3.0
|
|
* @uses $wpdb
|
|
*
|
|
* @param array $terms List of Term taxonomy IDs
|
|
* @param object $taxonomy Current taxonomy object of terms
|
|
*/
|
|
function _update_post_term_count( $terms, $taxonomy ) {
|
|
global $wpdb;
|
|
|
|
$object_types = (array) $taxonomy->object_type;
|
|
|
|
foreach ( $object_types as &$object_type )
|
|
list( $object_type ) = explode( ':', $object_type );
|
|
|
|
$object_types = array_unique( $object_types );
|
|
|
|
if ( false !== ( $check_attachments = array_search( 'attachment', $object_types ) ) ) {
|
|
unset( $object_types[ $check_attachments ] );
|
|
$check_attachments = true;
|
|
}
|
|
|
|
if ( $object_types )
|
|
$object_types = esc_sql( array_filter( $object_types, 'post_type_exists' ) );
|
|
|
|
foreach ( (array) $terms as $term ) {
|
|
$count = 0;
|
|
|
|
// Attachments can be 'inherit' status, we need to base count off the parent's status if so
|
|
if ( $check_attachments )
|
|
$count += (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts p1 WHERE p1.ID = $wpdb->term_relationships.object_id AND ( post_status = 'publish' OR ( post_status = 'inherit' AND post_parent > 0 AND ( SELECT post_status FROM $wpdb->posts WHERE ID = p1.post_parent ) = 'publish' ) ) AND post_type = 'attachment' AND term_taxonomy_id = %d", $term ) );
|
|
|
|
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 );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
|
|
do_action( 'edited_term_taxonomy', $term, $taxonomy );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Will update term count based on number of objects.
|
|
*
|
|
* Default callback for the link_category taxonomy.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 3.3.0
|
|
* @uses $wpdb
|
|
*
|
|
* @param array $terms List of Term taxonomy IDs
|
|
* @param object $taxonomy Current taxonomy object of terms
|
|
*/
|
|
function _update_generic_term_count( $terms, $taxonomy ) {
|
|
global $wpdb;
|
|
|
|
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 );
|
|
$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) );
|
|
do_action( 'edited_term_taxonomy', $term, $taxonomy );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generates a permalink for a taxonomy term archive.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @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.
|
|
*
|
|
* @param object|int|string $term
|
|
* @param string $taxonomy (optional if $term is object)
|
|
* @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 = '') {
|
|
global $wp_rewrite;
|
|
|
|
if ( !is_object($term) ) {
|
|
if ( is_int($term) ) {
|
|
$term = get_term($term, $taxonomy);
|
|
} else {
|
|
$term = get_term_by('slug', $term, $taxonomy);
|
|
}
|
|
}
|
|
|
|
if ( !is_object($term) )
|
|
$term = new WP_Error('invalid_term', __('Empty Term'));
|
|
|
|
if ( is_wp_error( $term ) )
|
|
return $term;
|
|
|
|
$taxonomy = $term->taxonomy;
|
|
|
|
$termlink = $wp_rewrite->get_extra_permastruct($taxonomy);
|
|
|
|
$slug = $term->slug;
|
|
$t = get_taxonomy($taxonomy);
|
|
|
|
if ( empty($termlink) ) {
|
|
if ( 'category' == $taxonomy )
|
|
$termlink = '?cat=' . $term->term_id;
|
|
elseif ( $t->query_var )
|
|
$termlink = "?$t->query_var=$slug";
|
|
else
|
|
$termlink = "?taxonomy=$taxonomy&term=$slug";
|
|
$termlink = home_url($termlink);
|
|
} else {
|
|
if ( $t->rewrite['hierarchical'] ) {
|
|
$hierarchical_slugs = array();
|
|
$ancestors = get_ancestors($term->term_id, $taxonomy);
|
|
foreach ( (array)$ancestors as $ancestor ) {
|
|
$ancestor_term = get_term($ancestor, $taxonomy);
|
|
$hierarchical_slugs[] = $ancestor_term->slug;
|
|
}
|
|
$hierarchical_slugs = array_reverse($hierarchical_slugs);
|
|
$hierarchical_slugs[] = $slug;
|
|
$termlink = str_replace("%$taxonomy%", implode('/', $hierarchical_slugs), $termlink);
|
|
} else {
|
|
$termlink = str_replace("%$taxonomy%", $slug, $termlink);
|
|
}
|
|
$termlink = home_url( user_trailingslashit($termlink, 'category') );
|
|
}
|
|
// Back Compat filters.
|
|
if ( 'post_tag' == $taxonomy )
|
|
$termlink = apply_filters( 'tag_link', $termlink, $term->term_id );
|
|
elseif ( 'category' == $taxonomy )
|
|
$termlink = apply_filters( 'category_link', $termlink, $term->term_id );
|
|
|
|
return apply_filters('term_link', $termlink, $term, $taxonomy);
|
|
}
|
|
|
|
/**
|
|
* Display the taxonomies of a post with available options.
|
|
*
|
|
* This function can be used within the loop to display the taxonomies for a
|
|
* post without specifying the Post ID. You can also use it outside the Loop to
|
|
* display the taxonomies for a specific post.
|
|
*
|
|
* 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 $args Override the defaults.
|
|
*/
|
|
function the_taxonomies($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;
|
|
}
|
|
|
|
/**
|
|
* Retrieve all taxonomies associated with a post.
|
|
*
|
|
* This function can be used within the loop. It will also return an array of
|
|
* the taxonomies with links to the taxonomy and name.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $post Optional. Post ID or will use Global Post ID (in loop).
|
|
* @param array $args Override the defaults.
|
|
* @return array
|
|
*/
|
|
function get_the_taxonomies($post = 0, $args = array() ) {
|
|
$post = get_post( $post );
|
|
|
|
$args = wp_parse_args( $args, array(
|
|
'template' => '%s: %l.',
|
|
) );
|
|
extract( $args, EXTR_SKIP );
|
|
|
|
$taxonomies = array();
|
|
|
|
if ( !$post )
|
|
return $taxonomies;
|
|
|
|
foreach ( get_object_taxonomies($post) as $taxonomy ) {
|
|
$t = (array) get_taxonomy($taxonomy);
|
|
if ( empty($t['label']) )
|
|
$t['label'] = $taxonomy;
|
|
if ( empty($t['args']) )
|
|
$t['args'] = array();
|
|
if ( empty($t['template']) )
|
|
$t['template'] = $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);
|
|
}
|
|
return $taxonomies;
|
|
}
|
|
|
|
/**
|
|
* Retrieve all taxonomies of a post with just the names.
|
|
*
|
|
* @since 2.5.0
|
|
* @uses get_object_taxonomies()
|
|
*
|
|
* @param int $post Optional. Post ID
|
|
* @return array
|
|
*/
|
|
function get_post_taxonomies($post = 0) {
|
|
$post = get_post( $post );
|
|
|
|
return get_object_taxonomies($post);
|
|
}
|
|
|
|
/**
|
|
* Determine if the given object is associated with any of the given terms.
|
|
*
|
|
* The given terms are checked against the object's terms' term_ids, names and slugs.
|
|
* Terms given as integers will only be checked against the object's terms' term_ids.
|
|
* If no terms are given, determines if object is associated with any terms in the given taxonomy.
|
|
*
|
|
* @since 2.7.0
|
|
* @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.
|
|
*/
|
|
function is_object_in_term( $object_id, $taxonomy, $terms = null ) {
|
|
if ( !$object_id = (int) $object_id )
|
|
return new WP_Error( 'invalid_object', __( 'Invalid object ID' ) );
|
|
|
|
$object_terms = get_object_term_cache( $object_id, $taxonomy );
|
|
if ( false === $object_terms )
|
|
$object_terms = wp_get_object_terms( $object_id, $taxonomy );
|
|
|
|
if ( is_wp_error( $object_terms ) )
|
|
return $object_terms;
|
|
if ( empty( $object_terms ) )
|
|
return false;
|
|
if ( empty( $terms ) )
|
|
return ( !empty( $object_terms ) );
|
|
|
|
$terms = (array) $terms;
|
|
|
|
if ( $ints = array_filter( $terms, 'is_int' ) )
|
|
$strs = array_diff( $terms, $ints );
|
|
else
|
|
$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 ( $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;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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 $taxonomy Single taxonomy name
|
|
* @return bool True if object is associated with the taxonomy, otherwise false.
|
|
*/
|
|
function is_object_in_taxonomy($object_type, $taxonomy) {
|
|
$taxonomies = get_object_taxonomies($object_type);
|
|
|
|
if ( empty($taxonomies) )
|
|
return false;
|
|
|
|
if ( in_array($taxonomy, $taxonomies) )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get an array of ancestor IDs for a given object.
|
|
*
|
|
* @param int $object_id The ID of the object
|
|
* @param string $object_type The type of object for which we'll be retrieving ancestors.
|
|
* @return array of ancestors from lowest to highest in the hierarchy.
|
|
*/
|
|
function get_ancestors($object_id = 0, $object_type = '') {
|
|
$object_id = (int) $object_id;
|
|
|
|
$ancestors = array();
|
|
|
|
if ( empty( $object_id ) ) {
|
|
return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
|
|
}
|
|
|
|
if ( is_taxonomy_hierarchical( $object_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 ( post_type_exists( $object_type ) ) {
|
|
$ancestors = get_post_ancestors($object_id);
|
|
}
|
|
|
|
return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
|
|
}
|
|
|
|
/**
|
|
* Returns the term's parent's term_ID
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param int $term_id
|
|
* @param string $taxonomy
|
|
*
|
|
* @return int|bool false on error
|
|
*/
|
|
function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) {
|
|
$term = get_term( $term_id, $taxonomy );
|
|
if ( !$term || is_wp_error( $term ) )
|
|
return false;
|
|
return (int) $term->parent;
|
|
}
|
|
|
|
/**
|
|
* Checks the given subset of the term hierarchy for hierarchy loops.
|
|
* Prevents loops from forming and breaks those that it finds.
|
|
*
|
|
* Attached to the 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.
|
|
* @param string $taxonomy The taxonomy of the term we're checking.
|
|
*
|
|
* @return int The new parent for the term.
|
|
*/
|
|
function wp_check_term_hierarchy_for_loops( $parent, $term_id, $taxonomy ) {
|
|
// Nothing fancy here - bail
|
|
if ( !$parent )
|
|
return 0;
|
|
|
|
// Can't be its own parent
|
|
if ( $parent == $term_id )
|
|
return 0;
|
|
|
|
// Now look for larger loops
|
|
|
|
if ( !$loop = wp_find_hierarchy_loop( 'wp_get_term_taxonomy_parent_id', $term_id, $parent, array( $taxonomy ) ) )
|
|
return $parent; // No loop
|
|
|
|
// Setting $parent to the given value causes a loop
|
|
if ( isset( $loop[$term_id] ) )
|
|
return 0;
|
|
|
|
// There's a loop, but it doesn't contain $term_id. Break the loop.
|
|
foreach ( array_keys( $loop ) as $loop_member )
|
|
wp_update_term( $loop_member, $taxonomy, array( 'parent' => 0 ) );
|
|
|
|
return $parent;
|
|
} |