1308 lines
39 KiB
PHP
1308 lines
39 KiB
PHP
<?php
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//
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// Taxonomy Registration
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//
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/**
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* @global array $wp_taxonomies Fill me out please
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*/
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$wp_taxonomies = array();
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$wp_taxonomies['category'] = (object) array('name' => 'category', 'object_type' => 'post', 'hierarchical' => true, 'update_count_callback' => '_update_post_term_count');
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$wp_taxonomies['post_tag'] = (object) array('name' => 'post_tag', 'object_type' => 'post', 'hierarchical' => false, 'update_count_callback' => '_update_post_term_count');
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$wp_taxonomies['link_category'] = (object) array('name' => 'link_category', 'object_type' => 'link', 'hierarchical' => false);
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/**
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* get_object_taxonomies() - Return all of the taxonomy names that are of $object_type
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*
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* It appears that this function can be used to find all of the names inside of
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* $wp_taxonomies global variable.
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*
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* @example
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* <?php $taxonomies = get_object_taxonomies('post'); ?>
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* Should result in <pre>Array(
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* 'category',
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* 'post_tag'
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* )</pre>
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*
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* @package Taxonomy
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* @global array $wp_taxonomies
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* @param string $object_type Name of the type of taxonomy object
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* @return array The names of all within the object_type.
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_object_taxonomies($object_type) {
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global $wp_taxonomies;
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$taxonomies = array();
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foreach ( $wp_taxonomies as $taxonomy ) {
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if ( $object_type == $taxonomy->object_type )
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$taxonomies[] = $taxonomy->name;
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}
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return $taxonomies;
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}
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/**
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* get_taxonomy() - Returns the "taxonomy" object of $taxonomy.
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*
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* The get_taxonomy function will first check that the parameter string given
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* is a taxonomy object and if it is, it will return it.
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*
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* @package Taxonomy
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* @global array $wp_taxonomies
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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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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_taxonomy( $taxonomy ) {
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global $wp_taxonomies;
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if ( ! is_taxonomy($taxonomy) )
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return false;
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return $wp_taxonomies[$taxonomy];
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}
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/**
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* is_taxonomy() - Checks that the taxonomy name exists
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*
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* @package Taxonomy
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* @global array $wp_taxonomies
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* @param string $taxonomy Name of taxonomy object
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* @return bool Whether the taxonomy exists or not.
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function is_taxonomy( $taxonomy ) {
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global $wp_taxonomies;
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return isset($wp_taxonomies[$taxonomy]);
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}
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/**
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* is_taxonomy_hierarchical() - Whether the taxonomy object is hierarchical
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*
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* Checks to make sure that the taxonomy is an object first. Then Gets the object, and finally
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* returns the hierarchical value in the object.
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*
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* A false return value, might also mean that the taxonomy does not exist.
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*
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* @package Taxonomy
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* @global array $wp_taxonomies
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* @param string $taxonomy Name of taxonomy object
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* @return bool Whether the taxonomy is hierarchical
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function is_taxonomy_hierarchical($taxonomy) {
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if ( ! is_taxonomy($taxonomy) )
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return false;
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$taxonomy = get_taxonomy($taxonomy);
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return $taxonomy->hierarchical;
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}
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/**
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* register_taxonomy() - Create or modify a taxonomy object.
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*
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* A simple function for creating or modifying a taxonomy object based on the parameters given.
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* The function will accept an array (third optional parameter), along with strings for the
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* taxonomy name and another string for the object type.
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*
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* The function keeps a default set, allowing for the $args to be optional but allow the other
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* functions to still work. It is possible to overwrite the default set, which contains two
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* keys: hierarchical and update_count_callback.
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*
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* hierarachical has some defined purpose at other parts of the API and is a boolean value.
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*
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* update_count_callback works much like a hook, in that it will be called (or something from
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* somewhere).
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*
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* @package Taxonomy
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* @global array $wp_taxonomies
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* @param string $taxonomy Name of taxonomy object
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* @param string $object_type Name of the object type for the taxonomy object.
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* @param array|string $args See above description for the two keys values.
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* @return null Nothing is returned, so expect error maybe or use is_taxonomy() to check.
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
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global $wp_taxonomies;
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$defaults = array('hierarchical' => false, 'update_count_callback' => '');
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$args = wp_parse_args($args, $defaults);
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$args['name'] = $taxonomy;
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$args['object_type'] = $object_type;
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$wp_taxonomies[$taxonomy] = (object) $args;
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}
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//
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// Term API
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//
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/**
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* get_objects_in_term() - Return object_ids of valid taxonomy and term
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*
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* The strings of $taxonomies must exist before this function will continue. On failure of finding
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* a valid taxonomy, it will return an WP_Error class, kind of like Exceptions in PHP 5, except you
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* can't catch them. Even so, you can still test for the WP_Error class and get the error message.
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*
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* The $terms aren't checked the same as $taxonomies, but still need to exist for $object_ids to
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* be returned.
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*
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* It is possible to change the order that object_ids is returned by either using PHP sort family
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* functions or using the database by using $args with either ASC or DESC array. The value should
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* be in the key named 'order'.
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*
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* @package Taxonomy
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* @subpackage Term
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* @global object $wpdb Database Query
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* @param string|array $terms String of term or array of string values of terms that will be used
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* @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names
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* @param array|string $args Change the order of the object_ids, either ASC or DESC
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* @return object WP_Error - A PHP 4 compatible Exception class prototype
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* @return array Empty array if there are no $object_ids
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* @return array Array of $object_ids
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_objects_in_term( $terms, $taxonomies, $args = array() ) {
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global $wpdb;
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if ( !is_array( $terms) )
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$terms = array($terms);
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if ( !is_array($taxonomies) )
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$taxonomies = array($taxonomies);
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foreach ( $taxonomies as $taxonomy ) {
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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}
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$defaults = array('order' => 'ASC');
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$args = wp_parse_args( $args, $defaults );
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extract($args, EXTR_SKIP);
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$terms = array_map('intval', $terms);
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$taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$terms = "'" . implode("', '", $terms) . "'";
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$object_ids = $wpdb->get_col("SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tt.term_id IN ($terms) ORDER BY tr.object_id $order");
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if ( ! $object_ids )
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return array();
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return $object_ids;
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}
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/**
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* get_term() -
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*
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*
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*
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* @package Taxonomy
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* @subpackage Term
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* @global object $wpdb Database Query
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* @param int|object $term
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* @param string $taxonomy
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* @param string $output Either OBJECT, ARRAY_A, or ARRAY_N
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* @return mixed Term Row from database
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*
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* @internal
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* This won't appear but just a note to say that this is all conjecture and parts or whole
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* might be inaccurate or wrong.
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*/
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function &get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
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global $wpdb;
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if ( empty($term) )
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return null;
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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if ( is_object($term) ) {
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wp_cache_add($term->term_id, $term, $taxonomy);
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$_term = $term;
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} else {
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$term = (int) $term;
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if ( ! $_term = wp_cache_get($term, $taxonomy) ) {
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$_term = $wpdb->get_row("SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = '$taxonomy' AND t.term_id = '$term' LIMIT 1");
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wp_cache_add($term, $_term, $taxonomy);
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}
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}
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/**
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* @internal
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* Filter tag is basically: filter 'type' 'hook_name' 'description'
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*
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* Takes two parameters the term Object and the taxonomy name. Must return term object.
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* @filter object get_term Used in @see get_term() as a catch-all filter for every $term
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*/
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$_term = apply_filters('get_term', $_term, $taxonomy);
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/**
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* @internal
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* Filter tag is basically: filter 'type' 'hook_name' 'description'
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*
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* Takes two parameters the term Object and the taxonomy name. Must return term object.
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* $taxonomy will be the taxonomy name, so for example, if 'category', it would be 'get_category'
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* as the filter name.
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* Useful for custom taxonomies or plugging into default taxonomies.
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* @filter object get_$taxonomy Used in @see get_term() as specific filter for each $taxonomy.
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*/
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$_term = apply_filters("get_$taxonomy", $_term, $taxonomy);
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$_term = sanitize_term($_term, $taxonomy, $filter);
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if ( $output == OBJECT ) {
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return $_term;
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($_term);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($_term));
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} else {
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return $_term;
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}
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}
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/**
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* get_term_by() -
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*
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*
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*
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* @package Taxonomy
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* @subpackage Term
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* @global object $wpdb Database Query
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* @param string $field
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* @param string $value
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* @param string $taxonomy
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* @param string $output Either OBJECT, ARRAY_A, or ARRAY_N
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* @return mixed Term Row from database
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*
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* @internal
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* This won't appear but just a note to say that this is all conjecture and parts or whole
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* might be inaccurate or wrong.
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*/
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function get_term_by($field, $value, $taxonomy, $output = OBJECT, $filter = 'raw') {
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global $wpdb;
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if ( ! is_taxonomy($taxonomy) )
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return false;
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if ( 'slug' == $field ) {
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$field = 't.slug';
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$value = sanitize_title($value);
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if ( empty($value) )
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return false;
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} else if ( 'name' == $field ) {
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// Assume already escaped
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$field = 't.name';
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} else {
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$field = 't.term_id';
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$value = (int) $value;
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}
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$term = $wpdb->get_row("SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = '$taxonomy' AND $field = '$value' LIMIT 1");
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if ( !$term )
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return false;
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wp_cache_add($term->term_id, $term, $taxonomy);
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$term = sanitize_term($term, $taxonomy, $filter);
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if ( $output == OBJECT ) {
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return $term;
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($term);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($term));
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} else {
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return $term;
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}
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}
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/**
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* get_term_children() - Merge all term children into a single array.
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*
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* This recursive function will merge all of the children of $term into
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* the same array.
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*
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* Only useful for taxonomies which are hierarchical.
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*
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* @package Taxonomy
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* @subpackage Term
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* @global object $wpdb Database Query
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* @param string $term Name of Term to get children
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* @param string $taxonomy Taxonomy Name
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* @return array List of Term Objects
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_term_children( $term, $taxonomy ) {
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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$terms = _get_term_hierarchy($taxonomy);
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if ( ! isset($terms[$term]) )
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return array();
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$children = $terms[$term];
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foreach ( $terms[$term] as $child ) {
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if ( isset($terms[$child]) )
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$children = array_merge($children, get_term_children($child, $taxonomy));
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}
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return $children;
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}
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/**
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* get_term_field() - Get sanitized Term field
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*
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* Does checks for $term, based on the $taxonomy. The function is for
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* contextual reasons and for simplicity of usage. @see sanitize_term_field() for
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* more information.
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*
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* @package Taxonomy
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* @subpackage Term
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* @param string $field Term field to fetch
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* @param int $term Term ID
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* @param string $taxonomy Taxonomy Name
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* @param string $context ??
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* @return mixed @see sanitize_term_field()
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_term_field( $field, $term, $taxonomy, $context = 'display' ) {
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$term = (int) $term;
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$term = get_term( $term, $taxonomy );
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if ( is_wp_error($term) )
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return $term;
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if ( !is_object($term) )
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return '';
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if ( !isset($term->$field) )
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return '';
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return sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
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}
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/**
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* get_term_to_edit() - Sanitizes Term for editing
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*
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* Return value is @see sanitize_term() and usage is for sanitizing the term
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* for editing. Function is for contextual and simplicity.
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*
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* @package Taxonomy
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* @subpackage Term
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* @param int|object $id Term ID or Object
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* @param string $taxonomy Taxonomy Name
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* @return mixed @see sanitize_term()
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function get_term_to_edit( $id, $taxonomy ) {
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$term = get_term( $id, $taxonomy );
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if ( is_wp_error($term) )
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return $term;
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if ( !is_object($term) )
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return '';
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return sanitize_term($term, $taxonomy, 'edit');
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}
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/**
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* get_terms() -
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*
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*
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*
|
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* @package Taxonomy
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* @subpackage Term
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* @param string|array Taxonomy name or list of Taxonomy names
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* @param string|array $args ??
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* @return array List of Term Objects and their children.
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*
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* @internal
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* This is all conjecture and might be partially or completely inaccurate.
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*/
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function &get_terms($taxonomies, $args = '') {
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global $wpdb;
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$single_taxonomy = false;
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if ( !is_array($taxonomies) ) {
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$single_taxonomy = true;
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$taxonomies = array($taxonomies);
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}
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foreach ( $taxonomies as $taxonomy ) {
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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}
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$in_taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$defaults = array('orderby' => 'name', 'order' => 'ASC',
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'hide_empty' => true, 'exclude' => '', 'include' => '',
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'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
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'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '',
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'pad_counts' => false);
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$args = wp_parse_args( $args, $defaults );
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$args['number'] = (int) $args['number'];
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if ( !$single_taxonomy || !is_taxonomy_hierarchical($taxonomies[0]) ||
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'' != $args['parent'] ) {
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$args['child_of'] = 0;
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$args['hierarchical'] = false;
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$args['pad_counts'] = false;
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}
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if ( 'all' == $args['get'] ) {
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$args['child_of'] = 0;
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$args['hide_empty'] = 0;
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$args['hierarchical'] = false;
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$args['pad_counts'] = false;
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}
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extract($args, EXTR_SKIP);
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if ( $child_of ) {
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$hierarchy = _get_term_hierarchy($taxonomies[0]);
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if ( !isset($hierarchy[$child_of]) )
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return array();
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}
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if ( $parent ) {
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$hierarchy = _get_term_hierarchy($taxonomies[0]);
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if ( !isset($hierarchy[$parent]) )
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return array();
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}
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$key = md5( serialize( $args ) . serialize( $taxonomies ) );
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if ( $cache = wp_cache_get( 'get_terms', 'terms' ) ) {
|
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if ( isset( $cache[ $key ] ) )
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return apply_filters('get_terms', $cache[$key], $taxonomies, $args);
|
|
}
|
|
|
|
if ( 'count' == $orderby )
|
|
$orderby = 'tt.count';
|
|
else if ( 'name' == $orderby )
|
|
$orderby = 't.name';
|
|
else
|
|
$orderby = 't.term_id';
|
|
|
|
$where = '';
|
|
$inclusions = '';
|
|
if ( !empty($include) ) {
|
|
$exclude = '';
|
|
$interms = preg_split('/[\s,]+/',$include);
|
|
if ( count($interms) ) {
|
|
foreach ( $interms as $interm ) {
|
|
if (empty($inclusions))
|
|
$inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
|
|
else
|
|
$inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( !empty($inclusions) )
|
|
$inclusions .= ')';
|
|
$where .= $inclusions;
|
|
|
|
$exclusions = '';
|
|
if ( !empty($exclude) ) {
|
|
$exterms = preg_split('/[\s,]+/',$exclude);
|
|
if ( count($exterms) ) {
|
|
foreach ( $exterms as $exterm ) {
|
|
if (empty($exclusions))
|
|
$exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
|
|
else
|
|
$exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( !empty($exclusions) )
|
|
$exclusions .= ')';
|
|
$exclusions = apply_filters('list_terms_exclusions', $exclusions, $args );
|
|
$where .= $exclusions;
|
|
|
|
if ( !empty($slug) ) {
|
|
$slug = sanitize_title($slug);
|
|
$where .= " AND t.slug = '$slug'";
|
|
}
|
|
|
|
if ( !empty($name__like) )
|
|
$where .= " AND t.name LIKE '{$name__like}%'";
|
|
|
|
if ( '' != $parent ) {
|
|
$parent = (int) $parent;
|
|
$where .= " AND tt.parent = '$parent'";
|
|
}
|
|
|
|
if ( $hide_empty && !$hierarchical )
|
|
$where .= ' AND tt.count > 0';
|
|
|
|
if ( !empty($number) )
|
|
$number = 'LIMIT ' . $number;
|
|
else
|
|
$number = '';
|
|
|
|
if ( 'all' == $fields )
|
|
$select_this = 't.*, tt.*';
|
|
else if ( 'ids' == $fields )
|
|
$select_this = 't.term_id';
|
|
else if ( 'names' == $fields )
|
|
$select_this == 't.name';
|
|
|
|
$query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ($in_taxonomies) $where ORDER BY $orderby $order $number";
|
|
|
|
if ( 'all' == $fields ) {
|
|
$terms = $wpdb->get_results($query);
|
|
update_term_cache($terms);
|
|
} else if ( 'ids' == $fields ) {
|
|
$terms = $wpdb->get_col($query);
|
|
}
|
|
|
|
if ( empty($terms) )
|
|
return array();
|
|
|
|
if ( $child_of || $hierarchical ) {
|
|
$children = _get_term_hierarchy($taxonomies[0]);
|
|
if ( ! empty($children) )
|
|
$terms = & _get_term_children($child_of, $terms, $taxonomies[0]);
|
|
}
|
|
|
|
// Update term counts to include children.
|
|
if ( $pad_counts )
|
|
_pad_term_counts($terms, $taxonomies[0]);
|
|
|
|
// Make sure we show empty categories that have children.
|
|
if ( $hierarchical && $hide_empty ) {
|
|
foreach ( $terms as $k => $term ) {
|
|
if ( ! $term->count ) {
|
|
$children = _get_term_children($term->term_id, $terms, $taxonomies[0]);
|
|
foreach ( $children as $child )
|
|
if ( $child->count )
|
|
continue 2;
|
|
|
|
// It really is empty
|
|
unset($terms[$k]);
|
|
}
|
|
}
|
|
}
|
|
reset ( $terms );
|
|
|
|
$cache[ $key ] = $terms;
|
|
wp_cache_set( 'get_terms', $cache, 'term' );
|
|
|
|
$terms = apply_filters('get_terms', $terms, $taxonomies, $args);
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* is_term() - Check if Term exists
|
|
*
|
|
* Returns the index of a defined term, or 0 (false) if the term doesn't exist.
|
|
*
|
|
* @global $wpdb Database Object
|
|
* @param int|string $term The term to check
|
|
* @param string $taxonomy The taxonomy name to use
|
|
* @return mixed Get the term id or Term Object, if exists.
|
|
*/
|
|
function is_term($term, $taxonomy = '') {
|
|
global $wpdb;
|
|
|
|
if ( is_int($term) ) {
|
|
if ( 0 == $term )
|
|
return 0;
|
|
$where = "t.term_id = '$term'";
|
|
} else {
|
|
if ( ! $term = sanitize_title($term) )
|
|
return 0;
|
|
$where = "t.slug = '$term'";
|
|
}
|
|
|
|
$term_id = $wpdb->get_var("SELECT term_id FROM $wpdb->terms as t WHERE $where");
|
|
|
|
if ( empty($taxonomy) || empty($term_id) )
|
|
return $term_id;
|
|
|
|
return $wpdb->get_row("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $where AND tt.taxonomy = '$taxonomy'", ARRAY_A);
|
|
}
|
|
|
|
/**
|
|
* sanitize_term() - Sanitize Term all fields
|
|
*
|
|
* Relys on @see sanitize_term_field() to sanitize the term. The difference
|
|
* is that this function will sanitize <strong>all</strong> fields. The context
|
|
* is based on @see sanitize_term_field().
|
|
*
|
|
* The $term is expected to be either an array or an object.
|
|
*
|
|
* @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');
|
|
|
|
$do_object = false;
|
|
if ( is_object($term) )
|
|
$do_object = true;
|
|
|
|
foreach ( $fields as $field ) {
|
|
if ( $do_object )
|
|
$term->$field = sanitize_term_field($field, $term->$field, $term->term_id, $taxonomy, $context);
|
|
else
|
|
$term[$field] = sanitize_term_field($field, $term[$field], $term['term_id'], $taxonomy, $context);
|
|
}
|
|
|
|
return $term;
|
|
}
|
|
|
|
/**
|
|
* sanitize_term_field() -
|
|
*
|
|
*
|
|
*
|
|
* @global object $wpdb Database Object
|
|
* @param string $field Term field to sanitize
|
|
* @param string $value Search for this term value
|
|
* @param int $term_id Term ID
|
|
* @param string $taxonomy Taxonomy Name
|
|
* @param string $context Either edit, db, display, attribute, or js.
|
|
* @return mixed sanitized field
|
|
*/
|
|
function sanitize_term_field($field, $value, $term_id, $taxonomy, $context) {
|
|
if ( 'parent' == $field || 'term_id' == $field || 'count' == $field
|
|
|| 'term_group' == $field )
|
|
$value = (int) $value;
|
|
|
|
if ( 'edit' == $context ) {
|
|
$value = apply_filters("edit_term_$field", $value, $term_id, $taxonomy);
|
|
$value = apply_filters("edit_${taxonomy}_$field", $value, $term_id);
|
|
if ( 'description' == $field )
|
|
$value = format_to_edit($value);
|
|
else
|
|
$value = attribute_escape($value);
|
|
} else if ( 'db' == $context ) {
|
|
$value = apply_filters("pre_term_$field", $value, $taxonomy);
|
|
$value = apply_filters("pre_${taxonomy}_$field", $value);
|
|
} else if ( 'rss' == $context ) {
|
|
$value = apply_filters("term_${field}_rss", $value, $taxonomy);
|
|
$value = apply_filters("${taxonomy}_$field_rss", $value);
|
|
} else {
|
|
// Use display filters by default.
|
|
$value = apply_filters("term_$field", $value, $term_id, $taxonomy, $context);
|
|
$value = apply_filters("${taxonomy}_$field", $value, $term_id, $context);
|
|
}
|
|
|
|
if ( 'attribute' == $context )
|
|
$value = attribute_escape($value);
|
|
else if ( 'js' == $context )
|
|
$value = js_escape($value);
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* wp_count_terms() - Count how many terms are in Taxonomy
|
|
*
|
|
* Default $args is 'ignore_empty' which can be @example 'ignore_empty=true' or
|
|
* @example array('ignore_empty' => true); See @see wp_parse_args() for more
|
|
* information on parsing $args.
|
|
*
|
|
* @global object $wpdb Database Object
|
|
* @param string $taxonomy Taxonomy name
|
|
* @param array|string $args Overwrite defaults
|
|
* @return int How many terms are in $taxonomy
|
|
*/
|
|
function wp_count_terms( $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
$defaults = array('ignore_empty' => false);
|
|
$args = wp_parse_args($args, $defaults);
|
|
extract($args, EXTR_SKIP);
|
|
|
|
$where = '';
|
|
if ( $ignore_empty )
|
|
$where = 'AND count > 0';
|
|
|
|
return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE taxonomy = '$taxonomy' $where");
|
|
}
|
|
|
|
/**
|
|
* wp_delete_object_term_relationships() -
|
|
*
|
|
*
|
|
*
|
|
* @global object $wpdb Database Object
|
|
* @param int $object_id ??
|
|
* @param string|array $taxonomy List of Taxonomy Names or single Taxonomy name.
|
|
*/
|
|
function wp_delete_object_term_relationships( $object_id, $taxonomies ) {
|
|
global $wpdb;
|
|
|
|
$object_id = (int) $object_id;
|
|
|
|
if ( !is_array($taxonomies) )
|
|
$taxonomies = array($taxonomies);
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
$terms = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
|
|
$in_terms = "'" . implode("', '", $terms) . "'";
|
|
$wpdb->query("DELETE FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id IN ($in_terms)");
|
|
wp_update_term_count($terms, $taxonomy);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes a term from the database.
|
|
*/
|
|
function wp_delete_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
$term = (int) $term;
|
|
|
|
if ( ! $ids = is_term($term, $taxonomy) )
|
|
return false;
|
|
$tt_id = $ids['term_taxonomy_id'];
|
|
|
|
$defaults = array();
|
|
$args = wp_parse_args($args, $defaults);
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( isset($default) ) {
|
|
$default = (int) $default;
|
|
if ( ! is_term($default, $taxonomy) )
|
|
unset($default);
|
|
}
|
|
|
|
// Update children to point to new parent
|
|
if ( is_taxonomy_hierarchical($taxonomy) ) {
|
|
$term_obj = get_term($term, $taxonomy);
|
|
$parent = $term_obj->parent;
|
|
|
|
$wpdb->query("UPDATE $wpdb->term_taxonomy SET parent = '$parent' WHERE parent = '$term_obj->term_id' AND taxonomy = '$taxonomy'");
|
|
}
|
|
|
|
$objects = $wpdb->get_col("SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = '$tt_id'");
|
|
|
|
foreach ( (array) $objects as $object ) {
|
|
$terms = wp_get_object_terms($object, $taxonomy, 'fields=ids');
|
|
if ( 1 == count($terms) && isset($default) )
|
|
$terms = array($default);
|
|
else
|
|
$terms = array_diff($terms, array($term));
|
|
$terms = array_map('intval', $terms);
|
|
wp_set_object_terms($object, $terms, $taxonomy);
|
|
}
|
|
|
|
$wpdb->query("DELETE FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = '$tt_id'");
|
|
|
|
// Delete the term if no taxonomies use it.
|
|
if ( !$wpdb->get_var("SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = '$term'") )
|
|
$wpdb->query("DELETE FROM $wpdb->terms WHERE term_id = '$term'");
|
|
|
|
clean_term_cache($term, $taxonomy);
|
|
|
|
do_action("delete_$taxonomy", $term, $tt_id);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns the terms associated with the given object(s), in the supplied taxonomies.
|
|
* @param int|array $object_id The id of the object(s)) to retrieve for.
|
|
* @param string|array $taxonomies The taxonomies to retrieve terms from.
|
|
* @return array The requested term data.
|
|
*/
|
|
function wp_get_object_terms($object_ids, $taxonomies, $args = array()) {
|
|
global $wpdb;
|
|
|
|
if ( !is_array($taxonomies) )
|
|
$taxonomies = array($taxonomies);
|
|
|
|
foreach ( $taxonomies as $taxonomy ) {
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
|
|
}
|
|
|
|
if ( !is_array($object_ids) )
|
|
$object_ids = array($object_ids);
|
|
$object_ids = array_map('intval', $object_ids);
|
|
|
|
$defaults = array('orderby' => 'name', 'order' => 'ASC', 'fields' => 'all');
|
|
$args = wp_parse_args( $args, $defaults );
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( 'count' == $orderby )
|
|
$orderby = 'tt.count';
|
|
else if ( 'name' == $orderby )
|
|
$orderby = 't.name';
|
|
|
|
$taxonomies = "'" . implode("', '", $taxonomies) . "'";
|
|
$object_ids = implode(', ', $object_ids);
|
|
|
|
if ( 'all' == $fields )
|
|
$select_this = 't.*, tt.*';
|
|
else if ( 'ids' == $fields )
|
|
$select_this = 't.term_id';
|
|
else if ( 'all_with_object_id' == $fields )
|
|
$select_this = 't.*, tt.*, tr.object_id';
|
|
|
|
$query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tr.object_id IN ($object_ids) ORDER BY $orderby $order";
|
|
|
|
if ( 'all' == $fields || 'all_with_object_id' == $fields ) {
|
|
$terms = $wpdb->get_results($query);
|
|
update_term_cache($terms);
|
|
} else if ( 'ids' == $fields ) {
|
|
$terms = $wpdb->get_col($query);
|
|
} else if ( 'tt_ids' == $fields ) {
|
|
$terms = $wpdb->get_col("SELECT tr.term_taxonomy_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tr.object_id IN ($object_ids) AND tt.taxonomy IN ($taxonomies) ORDER BY tr.term_taxonomy_id $order");
|
|
}
|
|
|
|
if ( ! $terms )
|
|
return array();
|
|
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* wp_insert_term() - Adds a new term to the database. Optionally marks it as an alias of an existing term.
|
|
*
|
|
*
|
|
*
|
|
* @global $wpdb Database Object
|
|
* @param int|string $term The term to add or update.
|
|
* @param string $taxonomy The taxonomy to which to add the term
|
|
* @param array|string $args Change the values of the inserted term
|
|
* @return array The Term ID and Term Taxonomy ID
|
|
*/
|
|
function wp_insert_term( $term, $taxonomy, $args = array() ) {
|
|
global $wpdb;
|
|
|
|
if ( ! is_taxonomy($taxonomy) )
|
|
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
|
|
|
|
if ( is_int($term) && 0 == $term )
|
|
return new WP_Error('invalid_term_id', __('Invalid term ID'));
|
|
|
|
$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
|
|
$args = wp_parse_args($args, $defaults);
|
|
$args['name'] = $term;
|
|
$args = sanitize_term($args, $taxonomy, 'db');
|
|
extract($args, EXTR_SKIP);
|
|
|
|
if ( empty($slug) )
|
|
$slug = sanitize_title($name);
|
|
|
|
$term_group = 0;
|
|
if ( $alias_of ) {
|
|
$alias = $wpdb->fetch_row("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = '$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 GROUP BY term_group") + 1;
|
|
$wpdb->query("UPDATE $wpdb->terms SET term_group = $term_group WHERE term_id = $alias->term_id");
|
|
}
|
|
}
|
|
|
|
if ( ! $term_id = is_term($slug) ) {
|
|
$wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$name', '$slug', '$term_group')");
|
|
$term_id = (int) $wpdb->insert_id;
|
|
}
|
|
|
|
if ( empty($slug) ) {
|
|
$slug = sanitize_title($slug, $term_id);
|
|
$wpdb->query("UPDATE $wpdb->terms SET slug = '$slug' WHERE term_id = '$term_id'");
|
|
}
|
|
|
|
$tt_id = $wpdb->get_var("SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = '$taxonomy' AND t.term_id = $term_id");
|
|
|
|
if ( !empty($tt_id) )
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
|
|
$wpdb->query("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ('$term_id', '$taxonomy', '$description', '$parent', '0')");
|
|
$tt_id = (int) $wpdb->insert_id;
|
|
|
|
do_action("create_term", $term_id, $tt_id);
|
|
do_action("create_$taxonomy", $term_id, $tt_id);
|
|
|
|
$term_id = apply_filters('term_id_filter', $term_id, $tt_id);
|
|
|
|
clean_term_cache($term_id, $taxonomy);
|
|
|
|
do_action("created_term", $term_id, $tt_id);
|
|
do_action("created_$taxonomy", $term_id, $tt_id);
|
|
|
|
return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
|
|
}
|
|
|
|
/**
|
|
* wp_set_object_terms() -
|
|
*
|
|
* Relates an object (post, link etc) to a term and taxonomy type. Creates the term and taxonomy
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* relationship if it doesn't already exist. Creates a term if it doesn't exist (using the slug).
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*
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* @global $wpdb Database Object
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* @param int $object_id The object to relate to.
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* @param array|int|string $term The slug or id of the term.
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* @param array|string $taxonomy The context in which to relate the term to the object.
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* @param bool $append If false will delete difference of terms.
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*/
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function wp_set_object_terms($object_id, $terms, $taxonomy, $append = false) {
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global $wpdb;
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$object_id = (int) $object_id;
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
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if ( !is_array($terms) )
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$terms = array($terms);
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if ( ! $append )
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$old_terms = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
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$tt_ids = array();
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$term_ids = array();
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foreach ($terms as $term) {
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if ( !$id = is_term($term, $taxonomy) )
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$id = wp_insert_term($term, $taxonomy);
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$term_ids[] = $id['term_id'];
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$id = $id['term_taxonomy_id'];
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$tt_ids[] = $id;
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if ( $wpdb->get_var("SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id = '$id'") )
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continue;
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$wpdb->query("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES ('$object_id', '$id')");
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}
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wp_update_term_count($tt_ids, $taxonomy);
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if ( ! $append ) {
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$delete_terms = array_diff($old_terms, $tt_ids);
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if ( $delete_terms ) {
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$in_delete_terms = "'" . implode("', '", $delete_terms) . "'";
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$wpdb->query("DELETE FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id IN ($in_delete_terms)");
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wp_update_term_count($delete_terms, $taxonomy);
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}
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}
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return $tt_ids;
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}
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function wp_update_term( $term, $taxonomy, $args = array() ) {
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global $wpdb;
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if ( ! is_taxonomy($taxonomy) )
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return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
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$term_id = (int) $term;
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// First, get all of the original args
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$term = get_term ($term_id, $taxonomy, ARRAY_A);
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// Escape data pulled from DB.
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$term = add_magic_quotes($term);
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// Merge old and new args with new args overwriting old ones.
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$args = array_merge($term, $args);
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$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
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$args = wp_parse_args($args, $defaults);
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$args = sanitize_term($args, $taxonomy, 'db');
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extract($args, EXTR_SKIP);
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if ( empty($slug) )
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$slug = sanitize_title($name);
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if ( $alias_of ) {
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$alias = $wpdb->fetch_row("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = '$alias_of'");
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if ( $alias->term_group ) {
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// The alias we want is already in a group, so let's use that one.
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$term_group = $alias->term_group;
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} else {
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// The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
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$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms GROUP BY term_group") + 1;
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$wpdb->query("UPDATE $wpdb->terms SET term_group = $term_group WHERE term_id = $alias->term_id");
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}
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}
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$wpdb->query("UPDATE $wpdb->terms SET name = '$name', slug = '$slug', term_group = '$term_group' WHERE term_id = '$term_id'");
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if ( empty($slug) ) {
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$slug = sanitize_title($name, $term_id);
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$wpdb->query("UPDATE $wpdb->terms SET slug = '$slug' WHERE term_id = '$term_id'");
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}
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$tt_id = $wpdb->get_var("SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = '$taxonomy' AND t.term_id = $term_id");
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET term_id = '$term_id', taxonomy = '$taxonomy', description = '$description', parent = '$parent' WHERE term_taxonomy_id = '$tt_id'");
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do_action("edit_term", $term_id, $tt_id);
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do_action("edit_$taxonomy", $term_id, $tt_id);
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$term_id = apply_filters('term_id_filter', $term_id, $tt_id);
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clean_term_cache($term_id, $taxonomy);
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do_action("edited_term", $term_id, $tt_id);
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do_action("edited_$taxonomy", $term_id, $tt_id);
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return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
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}
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function wp_update_term_count( $terms, $taxonomy ) {
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global $wpdb;
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if ( empty($terms) )
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return false;
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if ( !is_array($terms) )
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$terms = array($terms);
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$terms = array_map('intval', $terms);
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$taxonomy = get_taxonomy($taxonomy);
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if ( !empty($taxonomy->update_count_callback) ) {
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call_user_func($taxonomy->update_count_callback, $terms);
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} else {
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// Default count updater
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foreach ($terms as $term) {
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$count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = '$term'");
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET count = '$count' WHERE term_taxonomy_id = '$term'");
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}
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}
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clean_term_cache($terms);
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return true;
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}
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//
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// Cache
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//
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function clean_object_term_cache($object_ids, $object_type) {
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global $object_term_cache, $blog_id;
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if ( !is_array($object_ids) )
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$object_ids = array($object_ids);
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$taxonomies = get_object_taxonomies($object_type);
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foreach ( $object_ids as $id ) {
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foreach ( $taxonomies as $taxonomy ) {
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if ( isset($object_term_cache[$blog_id][$id][$taxonomy]) )
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unset($object_term_cache[$blog_id][$id][$taxonomy]);
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}
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}
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}
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function clean_term_cache($ids, $taxonomy = '') {
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global $wpdb;
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if ( !is_array($ids) )
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$ids = array($ids);
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$taxonomies = array();
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// If no taxonomy, assume tt_ids.
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if ( empty($taxonomy) ) {
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$tt_ids = implode(', ', $ids);
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$terms = $wpdb->get_results("SELECT term_id, taxonomy FROM $wpdb->term_taxonomy WHERE term_taxonomy_id IN ($tt_ids)");
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foreach ( (array) $terms as $term ) {
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$taxonomies[] = $term->taxonomy;
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wp_cache_delete($term->term_id, $term->taxonomy);
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}
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$taxonomies = array_unique($taxonomies);
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} else {
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foreach ( $ids as $id ) {
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wp_cache_delete($id, $taxonomy);
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}
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$taxonomies = array($taxonomy);
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}
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foreach ( $taxonomies as $taxonomy ) {
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wp_cache_delete('all_ids', $taxonomy);
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wp_cache_delete('get', $taxonomy);
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delete_option("{$taxonomy}_children");
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}
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wp_cache_delete('get_terms', 'terms');
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}
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function &get_object_term_cache($id, $taxonomy) {
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global $object_term_cache, $blog_id;
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if ( isset($object_term_cache[$blog_id][$id][$taxonomy]) )
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return $object_term_cache[$blog_id][$id][$taxonomy];
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if ( isset($object_term_cache[$blog_id][$id]) )
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return array();
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return false;
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}
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function update_object_term_cache($object_ids, $object_type) {
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global $wpdb, $object_term_cache, $blog_id;
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if ( empty($object_ids) )
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return;
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if ( !is_array($object_ids) )
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$object_ids = explode(',', $object_ids);
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$count = count( $object_ids);
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for ( $i = 0; $i < $count; $i++ ) {
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$object_id = (int) $object_ids[ $i ];
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if ( isset( $object_term_cache[$blog_id][$object_id] ) ) {
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unset( $object_ids[ $i ] );
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continue;
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}
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}
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if ( count( $object_ids ) == 0 )
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return;
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$terms = wp_get_object_terms($object_ids, get_object_taxonomies($object_type), 'fields=all_with_object_id');
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if ( empty($terms) )
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return;
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foreach ( $terms as $term )
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$object_term_cache[$blog_id][$term->object_id][$term->taxonomy][$term->term_id] = $term;
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foreach ( $object_ids as $id ) {
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if ( ! isset($object_term_cache[$blog_id][$id]) )
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$object_term_cache[$blog_id][$id] = array();
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}
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}
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function update_term_cache($terms, $taxonomy = '') {
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foreach ( $terms as $term ) {
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$term_taxonomy = $taxonomy;
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if ( empty($term_taxonomy) )
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$term_taxonomy = $term->taxonomy;
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wp_cache_add($term->term_id, $term, $term_taxonomy);
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}
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}
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//
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// Private
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//
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function _get_term_hierarchy($taxonomy) {
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if ( !is_taxonomy_hierarchical($taxonomy) )
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return array();
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$children = get_option("{$taxonomy}_children");
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if ( is_array($children) )
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return $children;
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$children = array();
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$terms = get_terms($taxonomy, 'get=all');
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foreach ( $terms as $term ) {
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if ( $term->parent > 0 )
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$children[$term->parent][] = $term->term_id;
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}
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update_option("{$taxonomy}_children", $children);
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return $children;
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}
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function &_get_term_children($term_id, $terms, $taxonomy) {
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if ( empty($terms) )
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return array();
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$term_list = array();
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$has_children = _get_term_hierarchy($taxonomy);
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if ( ( 0 != $term_id ) && ! isset($has_children[$term_id]) )
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return array();
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foreach ( $terms as $term ) {
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$use_id = false;
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if ( !is_object($term) ) {
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$term = get_term($term, $taxonomy);
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$use_id = true;
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}
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if ( $term->term_id == $term_id )
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continue;
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if ( $term->parent == $term_id ) {
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if ( $use_id )
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$term_list[] = $term->term_id;
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else
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$term_list[] = $term;
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if ( !isset($has_children[$term->term_id]) )
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continue;
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if ( $children = _get_term_children($term->term_id, $terms, $taxonomy) )
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$term_list = array_merge($term_list, $children);
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}
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}
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return $term_list;
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}
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// Recalculates term counts by including items from child terms
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// Assumes all relevant children are already in the $terms argument
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function _pad_term_counts(&$terms, $taxonomy) {
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$term_hier = _get_term_hierarchy($taxonomy);
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if ( empty($term_hier) )
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return;
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foreach ( $terms as $key => $term ) {
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if ( $children = _get_term_children($term->term_id, $terms, $taxonomy) ) {
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foreach ( $children as $child ) {
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$child = get_term($child, $taxonomy);
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$terms[$key]->count += $child->count;
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}
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}
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}
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}
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//
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// Default callbacks
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//
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function _update_post_term_count( $terms ) {
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global $wpdb;
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foreach ( $terms as $term ) {
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$count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status = 'publish' AND post_type = 'post' AND term_taxonomy_id = '$term'");
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET count = '$count' WHERE term_taxonomy_id = '$term'");
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}
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}
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?>
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