* Creates the initial taxonomies when 'init' action is fired.
*/
function create_initial_taxonomies() {
- register_taxonomy( 'category', 'post', array('hierarchical' => true, 'update_count_callback' => '_update_post_term_count', 'label' => __('Categories'), 'query_var' => false, 'rewrite' => false) ) ;
- register_taxonomy( 'post_tag', 'post', array('hierarchical' => false, 'update_count_callback' => '_update_post_term_count', 'label' => __('Post Tags'), 'query_var' => false, 'rewrite' => false) ) ;
- register_taxonomy( 'link_category', 'link', array('hierarchical' => false, 'label' => __('Categories'), 'query_var' => false, 'rewrite' => false) ) ;
+ register_taxonomy( 'category', 'post', array(
+ 'hierarchical' => true,
+ 'update_count_callback' => '_update_post_term_count',
+ 'query_var' => 'category_name',
+ 'rewrite' => did_action( 'init' ) ? array(
+ 'hierarchical' => true,
+ 'slug' => get_option('category_base') ? get_option('category_base') : 'category',
+ 'with_front' => false) : false,
+ 'public' => true,
+ 'show_ui' => true,
+ '_builtin' => true,
+ ) );
+
+ register_taxonomy( 'post_tag', 'post', array(
+ 'hierarchical' => false,
+ 'update_count_callback' => '_update_post_term_count',
+ 'query_var' => 'tag',
+ 'rewrite' => did_action( 'init' ) ? array(
+ 'slug' => get_option('tag_base') ? get_option('tag_base') : 'tag',
+ 'with_front' => false) : false,
+ 'public' => true,
+ 'show_ui' => true,
+ '_builtin' => true,
+ ) );
+
+ register_taxonomy( 'nav_menu', 'nav_menu_item', array(
+ 'public' => false,
+ 'hierarchical' => false,
+ 'labels' => array(
+ 'name' => __( 'Navigation Menus' ),
+ 'singular_name' => __( 'Navigation Menu' ),
+ ),
+ 'query_var' => false,
+ 'rewrite' => false,
+ 'show_ui' => false,
+ '_builtin' => true,
+ 'show_in_nav_menus' => false,
+ ) );
+
+ register_taxonomy( 'link_category', 'link', array(
+ 'hierarchical' => false,
+ 'labels' => array(
+ 'name' => __( 'Link Categories' ),
+ 'singular_name' => __( 'Link Category' ),
+ 'search_items' => __( 'Search Link Categories' ),
+ 'popular_items' => null,
+ 'all_items' => __( 'All Link Categories' ),
+ 'edit_item' => __( 'Edit Link Category' ),
+ 'update_item' => __( 'Update Link Category' ),
+ 'add_new_item' => __( 'Add New Link Category' ),
+ 'new_item_name' => __( 'New Link Category Name' ),
+ 'separate_items_with_commas' => null,
+ 'add_or_remove_items' => null,
+ 'choose_from_most_used' => null,
+ ),
+ 'query_var' => false,
+ 'rewrite' => false,
+ 'public' => false,
+ 'show_ui' => false,
+ '_builtin' => true,
+ ) );
+
+ $rewrite = false;
+ if ( did_action( 'init' ) ) {
+ $rewrite = apply_filters( 'post_format_rewrite_base', 'type' );
+ $rewrite = $rewrite ? array( 'slug' => $rewrite ) : false;
+ }
+
+ register_taxonomy( 'post_format', 'post', array(
+ 'public' => true,
+ 'hierarchical' => false,
+ 'labels' => array(
+ 'name' => _x( 'Format', 'post format' ),
+ 'singular_name' => _x( 'Format', 'post format' ),
+ ),
+ 'query_var' => true,
+ 'rewrite' => $rewrite,
+ 'show_ui' => false,
+ '_builtin' => true,
+ 'show_in_nav_menus' => false,
+ ) );
}
add_action( 'init', 'create_initial_taxonomies', 0 ); // highest priority
+/**
+ * Get a list of registered taxonomy objects.
+ *
+ * @package WordPress
+ * @subpackage Taxonomy
+ * @since 3.0.0
+ * @uses $wp_taxonomies
+ * @see register_taxonomy
+ *
+ * @param array $args An array of key => value arguments to match against the taxonomy objects.
+ * @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
+ * @param string $operator The logical operation to perform. 'or' means only one element
+ * from the array needs to match; 'and' means all elements must match. The default is 'and'.
+ * @return array A list of taxonomy names or objects
+ */
+function get_taxonomies( $args = array(), $output = 'names', $operator = 'and' ) {
+ global $wp_taxonomies;
+
+ $field = ('names' == $output) ? 'name' : false;
+
+ return wp_filter_object_list($wp_taxonomies, $args, $operator, $field);
+}
+
+
/**
* Return all of the taxonomy names that are of $object_type.
*
* @uses $wp_taxonomies
*
* @param array|string|object $object Name of the type of taxonomy object, or an object (row from posts)
+ * @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
* @return array The names of all taxonomy of $object_type.
*/
-function get_object_taxonomies($object) {
+function get_object_taxonomies($object, $output = 'names') {
global $wp_taxonomies;
if ( is_object($object) ) {
$object = (array) $object;
$taxonomies = array();
- foreach ( (array) $wp_taxonomies as $taxonomy ) {
- if ( array_intersect($object, (array) $taxonomy->object_type) )
- $taxonomies[] = $taxonomy->name;
+ foreach ( (array) $wp_taxonomies as $tax_name => $tax_obj ) {
+ if ( array_intersect($object, (array) $tax_obj->object_type) ) {
+ if ( 'names' == $output )
+ $taxonomies[] = $tax_name;
+ else
+ $taxonomies[ $tax_name ] = $tax_obj;
+ }
}
return $taxonomies;
* @since 2.3.0
*
* @uses $wp_taxonomies
- * @uses is_taxonomy() Checks whether taxonomy exists
+ * @uses taxonomy_exists() Checks whether taxonomy exists
*
* @param string $taxonomy Name of taxonomy object to return
* @return object|bool The Taxonomy Object or false if $taxonomy doesn't exist
function get_taxonomy( $taxonomy ) {
global $wp_taxonomies;
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists( $taxonomy ) )
return false;
return $wp_taxonomies[$taxonomy];
/**
* Checks that the taxonomy name exists.
*
+ * Formerly is_taxonomy(), introduced in 2.3.0.
+ *
* @package WordPress
* @subpackage Taxonomy
- * @since 2.3.0
+ * @since 3.0.0
*
* @uses $wp_taxonomies
*
* @param string $taxonomy Name of taxonomy object
- * @return bool Whether the taxonomy exists or not.
+ * @return bool Whether the taxonomy exists.
*/
-function is_taxonomy( $taxonomy ) {
+function taxonomy_exists( $taxonomy ) {
global $wp_taxonomies;
- return isset($wp_taxonomies[$taxonomy]);
+ return isset( $wp_taxonomies[$taxonomy] );
}
/**
* @subpackage Taxonomy
* @since 2.3.0
*
- * @uses is_taxonomy() Checks whether taxonomy exists
+ * @uses taxonomy_exists() Checks whether taxonomy exists
* @uses get_taxonomy() Used to get the taxonomy object
*
* @param string $taxonomy Name of taxonomy object
* @return bool Whether the taxonomy is hierarchical
*/
function is_taxonomy_hierarchical($taxonomy) {
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return false;
$taxonomy = get_taxonomy($taxonomy);
* parameter), along with strings for the taxonomy name and another string for
* the object type.
*
- * Nothing is returned, so expect error maybe or use is_taxonomy() to check
+ * Nothing is returned, so expect error maybe or use taxonomy_exists() to check
* whether taxonomy exists.
*
* Optional $args contents:
*
- * hierarachical - has some defined purpose at other parts of the API and is a
+ * label - Name of the taxonomy shown in the menu. Usually plural. If not set, labels['name'] will be used.
+ *
+ * hierarchical - has some defined purpose at other parts of the API and is a
* boolean value.
*
* update_count_callback - works much like a hook, in that it will be called
* query_var - false to prevent queries, or string to customize query var
* (?$query_var=$term); default will use $taxonomy as query var.
*
+ * public - If the taxonomy should be publically queryable; //@TODO not implemented.
+ * defaults to true.
+ *
+ * show_ui - If the WordPress UI admin tags UI should apply to this taxonomy;
+ * defaults to public.
+ *
+ * show_in_nav_menus - true makes this taxonomy available for selection in navigation menus.
+ * Defaults to public.
+ *
+ * show_tagcloud - false to prevent the taxonomy being listed in the Tag Cloud Widget;
+ * defaults to show_ui which defalts to public.
+ *
+ * labels - An array of labels for this taxonomy. You can see accepted values in {@link get_taxonomy_labels()}. By default tag labels are used for non-hierarchical types and category labels for hierarchical ones.
+ *
* @package WordPress
* @subpackage Taxonomy
* @since 2.3.0
function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
global $wp_taxonomies, $wp_rewrite, $wp;
- if (!is_array($wp_taxonomies))
+ if ( ! is_array($wp_taxonomies) )
$wp_taxonomies = array();
- $defaults = array('hierarchical' => false, 'update_count_callback' => '', 'rewrite' => true, 'query_var' => true);
+ $defaults = array( 'hierarchical' => false,
+ 'update_count_callback' => '',
+ 'rewrite' => true,
+ 'query_var' => $taxonomy,
+ 'public' => true,
+ 'show_ui' => null,
+ 'show_tagcloud' => null,
+ '_builtin' => false,
+ 'labels' => array(),
+ 'capabilities' => array(),
+ 'show_in_nav_menus' => null,
+ );
$args = wp_parse_args($args, $defaults);
if ( false !== $args['query_var'] && !empty($wp) ) {
$wp->add_query_var($args['query_var']);
}
- if ( false !== $args['rewrite'] && !empty($wp_rewrite) ) {
- if ( !is_array($args['rewrite']) )
- $args['rewrite'] = array();
- if ( !isset($args['rewrite']['slug']) )
- $args['rewrite']['slug'] = sanitize_title_with_dashes($taxonomy);
- $wp_rewrite->add_rewrite_tag("%$taxonomy%", '([^/]+)', $args['query_var'] ? "{$args['query_var']}=" : "taxonomy=$taxonomy&term=$term");
- $wp_rewrite->add_permastruct($taxonomy, "{$args['rewrite']['slug']}/%$taxonomy%");
+ if ( false !== $args['rewrite'] && '' != get_option('permalink_structure') ) {
+ $args['rewrite'] = wp_parse_args($args['rewrite'], array(
+ 'slug' => sanitize_title_with_dashes($taxonomy),
+ 'with_front' => true,
+ 'hierarchical' => false
+ ));
+
+ if ( $args['hierarchical'] && $args['rewrite']['hierarchical'] )
+ $tag = '(.+?)';
+ else
+ $tag = '([^/]+)';
+
+ $wp_rewrite->add_rewrite_tag("%$taxonomy%", $tag, $args['query_var'] ? "{$args['query_var']}=" : "taxonomy=$taxonomy&term=");
+ $wp_rewrite->add_permastruct($taxonomy, "{$wp_rewrite->root}{$args['rewrite']['slug']}/%$taxonomy%", $args['rewrite']['with_front']);
}
+ if ( is_null($args['show_ui']) )
+ $args['show_ui'] = $args['public'];
+
+ // Whether to show this type in nav-menus.php. Defaults to the setting for public.
+ if ( null === $args['show_in_nav_menus'] )
+ $args['show_in_nav_menus'] = $args['public'];
+
+ if ( is_null($args['show_tagcloud']) )
+ $args['show_tagcloud'] = $args['show_ui'];
+
+ $default_caps = array(
+ 'manage_terms' => 'manage_categories',
+ 'edit_terms' => 'manage_categories',
+ 'delete_terms' => 'manage_categories',
+ 'assign_terms' => 'edit_posts',
+ );
+ $args['cap'] = (object) array_merge( $default_caps, $args['capabilities'] );
+ unset( $args['capabilities'] );
+
$args['name'] = $taxonomy;
- $args['object_type'] = $object_type;
+ $args['object_type'] = (array) $object_type;
+
+ $args['labels'] = get_taxonomy_labels( (object) $args );
+ $args['label'] = $args['labels']->name;
+
$wp_taxonomies[$taxonomy] = (object) $args;
+
+ // register callback handling for metabox
+ add_filter('wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term');
+}
+
+/**
+ * Builds an object with all taxonomy labels out of a taxonomy object
+ *
+ * Accepted keys of the label array in the taxonomy object:
+ * - name - general name for the taxonomy, usually plural. The same as and overriden by $tax->label. Default is Post Tags/Categories
+ * - singular_name - name for one object of this taxonomy. Default is Post Tag/Category
+ * - search_items - Default is Search Tags/Search Categories
+ * - popular_items - This string isn't used on hierarchical taxonomies. Default is Popular Tags
+ * - all_items - Default is All Tags/All Categories
+ * - parent_item - This string isn't used on non-hierarchical taxonomies. In hierarchical ones the default is Parent Category
+ * - parent_item_colon - The same as <code>parent_item</code>, but with colon <code>:</code> in the end
+ * - edit_item - Default is Edit Tag/Edit Category
+ * - update_item - Default is Update Tag/Update Category
+ * - 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.
+ *
+ * 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 ) {
+ if ( isset( $tax->helps ) && empty( $tax->labels['separate_items_with_commas'] ) )
+ $tax->labels['separate_items_with_commas'] = $tax->helps;
+
+ $nohier_vs_hier_defaults = array(
+ 'name' => array( _x( 'Post Tags', 'taxonomy general name' ), _x( 'Categories', 'taxonomy general name' ) ),
+ 'singular_name' => array( _x( 'Post 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' ) ),
+ '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 ),
+ );
+ $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 array|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;
+
+ $wp_taxonomies[$taxonomy]->object_type[] = $object_type;
+
+ return true;
}
//
* @uses $wpdb
* @uses wp_parse_args() Creates an array from string $args.
*
- * @param string|array $terms String of term or array of string values of terms that will be used
+ * @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( $terms, $taxonomies, $args = array() ) {
+function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
global $wpdb;
- if ( !is_array( $terms) )
- $terms = array($terms);
+ if ( ! is_array( $term_ids ) )
+ $term_ids = array( $term_ids );
- if ( !is_array($taxonomies) )
- $taxonomies = array($taxonomies);
+ if ( ! is_array( $taxonomies ) )
+ $taxonomies = array( $taxonomies );
foreach ( (array) $taxonomies as $taxonomy ) {
- if ( ! is_taxonomy($taxonomy) )
- return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
+ if ( ! taxonomy_exists( $taxonomy ) )
+ return new WP_Error( 'invalid_taxonomy', __( 'Invalid Taxonomy' ) );
}
- $defaults = array('order' => 'ASC');
+ $defaults = array( 'order' => 'ASC' );
$args = wp_parse_args( $args, $defaults );
- extract($args, EXTR_SKIP);
+ extract( $args, EXTR_SKIP );
- $order = ( 'desc' == strtolower($order) ) ? 'DESC' : 'ASC';
+ $order = ( 'desc' == strtolower( $order ) ) ? 'DESC' : 'ASC';
- $terms = array_map('intval', $terms);
+ $term_ids = array_map('intval', $term_ids );
- $taxonomies = "'" . implode("', '", $taxonomies) . "'";
- $terms = "'" . implode("', '", $terms) . "'";
+ $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 ($terms) ORDER BY tr.object_id $order");
+ $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: 'IN' and 'NOT IN'.
+ * Default: 'IN'
+ * - 'include_children' bool (optional) Whether to include child terms.
+ * Default: true
+ *
+ * @since 3.1.0
+ * @access public
+ * @var array
+ */
+ var $queries = array();
+
+ /**
+ * The relation between the queries. Can be one of 'AND' or 'OR'.
+ *
+ * @since 3.1.0
+ * @access public
+ * @var string
+ */
+ var $relation;
+
+ /**
+ * PHP4 type 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',
+ * ),
+ * )
+ *
+ * @return WP_Tax_Query
+ */
+ function WP_Tax_Query( $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
+ */
+ function get_sql( $primary_table, $primary_id_column ) {
+ global $wpdb;
+
+ $join = '';
+ $where = array();
+ $i = 0;
+
+ foreach ( $this->queries as $query ) {
+ extract( $query );
+
+ if ( ! taxonomy_exists( $taxonomy ) )
+ return array( 'join' => '', 'where' => ' AND 0 = 1');
+
+ $terms = array_unique( (array) $terms );
+
+ if ( empty( $terms ) )
+ continue;
+
+ if ( is_taxonomy_hierarchical( $taxonomy ) && $include_children ) {
+ $this->_transform_terms( $terms, $taxonomy, $field, 'term_id' );
+
+ $children = array();
+ foreach ( $terms as $term ) {
+ $children = array_merge( $children, get_term_children( $term, $taxonomy ) );
+ $children[] = $term;
+ }
+ $terms = $children;
+
+ $this->_transform_terms( $terms, $taxonomy, 'term_id', 'term_taxonomy_id' );
+ }
+ else {
+ $this->_transform_terms( $terms, $taxonomy, $field, 'term_taxonomy_id' );
+ }
+
+ if ( 'IN' == $operator ) {
+
+ if ( empty( $terms ) ) {
+ if ( 'OR' == $this->relation )
+ continue;
+ else
+ return array( 'join' => '', 'where' => ' AND 0 = 1' );
+ }
+
+ $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 );
+
+ $where[] = "$primary_table.$primary_id_column IN (
+ SELECT object_id
+ FROM $wpdb->term_relationships
+ WHERE term_taxonomy_id IN ($terms)
+ GROUP BY object_id HAVING COUNT(object_id) = $num_terms
+ )";
+ }
+
+ $i++;
+ }
+
+ if ( !empty( $where ) )
+ $where = ' AND ( ' . implode( " $this->relation ", $where ) . ' )';
+ else
+ $where = '';
+
+ return compact( 'join', 'where' );
+ }
+
+ /**
+ * Transforms a list of terms, from one field to another.
+ *
+ * @since 3.1.0
+ * @access private
+ *
+ * @param array &$terms The list of terms
+ * @param string $taxonomy The taxonomy of the terms
+ * @param string $field The initial field
+ * @param string $resulting_field The resulting field
+ */
+ function _transform_terms( &$terms, $taxonomy, $field, $resulting_field ) {
+ global $wpdb;
+
+ if ( empty( $terms ) )
+ return;
+
+ if ( $field == $resulting_field )
+ return;
+
+ $resulting_field = esc_sql( $resulting_field );
+
+ switch ( $field ) {
+ case 'slug':
+ case 'name':
+ $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $terms ) ) . "'";
+ $terms = $wpdb->get_col( "
+ SELECT $wpdb->term_taxonomy.$resulting_field
+ FROM $wpdb->term_taxonomy
+ INNER JOIN $wpdb->terms USING (term_id)
+ WHERE taxonomy = '$taxonomy'
+ AND $wpdb->terms.$field IN ($terms)
+ " );
+ break;
+
+ default:
+ $terms = implode( ',', array_map( 'intval', $terms ) );
+ $terms = $wpdb->get_col( "
+ SELECT $resulting_field
+ FROM $wpdb->term_taxonomy
+ WHERE taxonomy = '$taxonomy'
+ AND term_id IN ($terms)
+ " );
+ }
+ }
+}
+
/**
* Get all Term data from database by Term ID.
*
*/
function &get_term($term, $taxonomy, $output = OBJECT, $filter = 'raw') {
global $wpdb;
+ $null = null;
if ( empty($term) ) {
$error = new WP_Error('invalid_term', __('Empty Term'));
return $error;
}
- if ( ! is_taxonomy($taxonomy) ) {
+ if ( ! taxonomy_exists($taxonomy) ) {
$error = new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
return $error;
}
$term = (int) $term;
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 = %s LIMIT 1", $taxonomy, $term) );
+ if ( ! $_term )
+ return $null;
wp_cache_add($term, $_term, $taxonomy);
}
}
function get_term_by($field, $value, $taxonomy, $output = OBJECT, $filter = 'raw') {
global $wpdb;
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return false;
if ( 'slug' == $field ) {
$value = stripslashes($value);
$field = 't.name';
} else {
- $field = 't.term_id';
- $value = (int) $value;
+ return get_term( (int) $value, $taxonomy, $output, $filter);
}
$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, $value) );
wp_cache_add($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 ) {
* @uses _get_term_hierarchy()
* @uses get_term_children() Used to get the children of both $taxonomy and the parent $term
*
- * @param string $term ID of Term to get children
+ * @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, $taxonomy ) {
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
$term_id = intval( $term_id );
*
* 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.
*
* 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 string. A comma- or space-delimited string
+ * 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 - A 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.
+ * 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 string. A comma- or space-delimited string
+ * 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 empty.
+ * number - The maximum number of terms to return. Default is to return them all.
*
* offset - The number by which to offset the terms query.
*
* @uses $wpdb
* @uses wp_parse_args() Merges the defaults with those defined by $args and allows for strings.
*
- * @param string|array Taxonomy name or list of Taxonomy names
+ * @param string|array $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.
*/
$taxonomies = array($taxonomies);
}
- foreach ( (array) $taxonomies as $taxonomy ) {
- if ( ! is_taxonomy($taxonomy) ) {
+ foreach ( $taxonomies as $taxonomy ) {
+ if ( ! taxonomy_exists($taxonomy) ) {
$error = & new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
return $error;
}
}
- $in_taxonomies = "'" . implode("', '", $taxonomies) . "'";
-
$defaults = array('orderby' => 'name', 'order' => 'ASC',
- 'hide_empty' => true, 'exclude' => '', 'exclude_tree' => '', 'include' => '',
+ 'hide_empty' => true, 'exclude' => array(), 'exclude_tree' => array(), 'include' => array(),
'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
'hierarchical' => true, 'child_of' => 0, 'get' => '', 'name__like' => '',
'pad_counts' => false, 'offset' => '', 'search' => '');
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
+
+ $args = apply_filters( 'get_terms_args', $args, $taxonomies );
+
extract($args, EXTR_SKIP);
if ( $child_of ) {
$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';
$orderby = apply_filters( 'get_terms_orderby', $orderby, $args );
- $where = '';
+ if ( !empty($orderby) )
+ $orderby = "ORDER BY $orderby";
+ else
+ $order = '';
+
+ $where = "tt.taxonomy IN ('" . implode("', '", $taxonomies) . "')";
$inclusions = '';
if ( !empty($include) ) {
$exclude = '';
$exclude_tree = '';
- $interms = preg_split('/[\s,]+/',$include);
- if ( count($interms) ) {
- foreach ( (array) $interms as $interm ) {
- if (empty($inclusions))
- $inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
- else
- $inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
- }
+ $interms = wp_parse_id_list($include);
+ foreach ( $interms as $interm ) {
+ if ( empty($inclusions) )
+ $inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
+ else
+ $inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
}
}
$where .= $inclusions;
$exclusions = '';
- if ( ! empty( $exclude_tree ) ) {
- $excluded_trunks = preg_split('/[\s,]+/',$exclude_tree);
- foreach( (array) $excluded_trunks as $extrunk ) {
- $excluded_children = (array) get_terms($taxonomies[0], array('child_of' => intval($extrunk), 'fields' => 'ids'));
+ if ( !empty( $exclude_tree ) ) {
+ $excluded_trunks = wp_parse_id_list($exclude_tree);
+ foreach ( $excluded_trunks as $extrunk ) {
+ $excluded_children = (array) get_terms($taxonomies[0], array('child_of' => intval($extrunk), 'fields' => 'ids', 'hide_empty' => 0));
$excluded_children[] = $extrunk;
- foreach( (array) $excluded_children as $exterm ) {
+ foreach( $excluded_children as $exterm ) {
if ( empty($exclusions) )
$exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
else
$exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
-
}
}
}
+
if ( !empty($exclude) ) {
- $exterms = preg_split('/[\s,]+/',$exclude);
- if ( count($exterms) ) {
- foreach ( (array) $exterms as $exterm ) {
- if ( empty($exclusions) )
- $exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
- else
- $exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
- }
+ $exterms = wp_parse_id_list($exclude);
+ foreach ( $exterms as $exterm ) {
+ if ( empty($exclusions) )
+ $exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
+ else
+ $exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
}
}
}
if ( !empty($name__like) )
- $where .= " AND t.name LIKE '{$name__like}%'";
+ $where .= " AND t.name LIKE '" . like_escape( $name__like ) . "%'";
if ( '' !== $parent ) {
$parent = (int) $parent;
// don't limit the query results when we have to descend the family tree
if ( ! empty($number) && ! $hierarchical && empty( $child_of ) && '' === $parent ) {
- if( $offset )
- $limit = 'LIMIT ' . $offset . ',' . $number;
+ if ( $offset )
+ $limits = 'LIMIT ' . $offset . ',' . $number;
else
- $limit = 'LIMIT ' . $number;
-
- } else
- $limit = '';
+ $limits = 'LIMIT ' . $number;
+ } else {
+ $limits = '';
+ }
if ( !empty($search) ) {
$search = like_escape($search);
}
$selects = array();
- if ( 'all' == $fields )
- $selects = array('t.*', 'tt.*');
- else if ( 'ids' == $fields )
- $selects = array('t.term_id', 'tt.parent', 'tt.count');
- else if ( 'names' == $fields )
- $selects = array('t.term_id', 'tt.parent', 'tt.count', 't.name');
- $select_this = implode(', ', apply_filters( 'get_terms_fields', $selects, $args ));
+ 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(*)');
+ }
+
+ $_fields = $fields;
- $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 $limit";
+ $fields = implode(', ', apply_filters( 'get_terms_fields', $selects, $args ));
+
+ $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' == $fields ) {
}
if ( empty($terms) ) {
- wp_cache_add( $cache_key, array(), 'terms' );
+ wp_cache_add( $cache_key, array(), 'terms', 86400 ); // one day
$terms = apply_filters('get_terms', array(), $taxonomies, $args);
return $terms;
}
foreach ( $terms as $k => $term ) {
if ( ! $term->count ) {
$children = _get_term_children($term->term_id, $terms, $taxonomies[0]);
- if( is_array($children) )
+ if ( is_array($children) )
foreach ( $children as $child )
if ( $child->count )
continue 2;
reset ( $terms );
$_terms = array();
- if ( 'ids' == $fields ) {
+ if ( 'id=>parent' == $fields ) {
+ while ( $term = array_shift($terms) )
+ $_terms[$term->term_id] = $term->parent;
+ $terms = $_terms;
+ } elseif ( 'ids' == $fields ) {
while ( $term = array_shift($terms) )
$_terms[] = $term->term_id;
$terms = $_terms;
$terms = array_slice($terms, $offset, $number);
}
- wp_cache_add( $cache_key, $terms, 'terms' );
+ wp_cache_add( $cache_key, $terms, 'terms', 86400 ); // one day
$terms = apply_filters('get_terms', $terms, $taxonomies, $args);
return $terms;
*
* Returns the index of a defined term, or 0 (false) if the term doesn't exist.
*
+ * Formerly is_term(), introduced in 2.3.0.
+ *
* @package WordPress
* @subpackage Taxonomy
- * @since 2.3.0
+ * @since 3.0.0
*
* @uses $wpdb
*
* @param int $parent ID of parent term under which to confine the exists search.
* @return mixed Get the term id or Term Object, if exists.
*/
-function is_term($term, $taxonomy = '', $parent = 0) {
+function term_exists($term, $taxonomy = '', $parent = 0) {
global $wpdb;
$select = "SELECT term_id FROM $wpdb->terms as t WHERE ";
return $value;
if ( 'edit' == $context ) {
- $value = apply_filters("edit_term_$field", $value, $term_id, $taxonomy);
- $value = apply_filters("edit_${taxonomy}_$field", $value, $term_id);
+ $value = apply_filters("edit_term_{$field}", $value, $term_id, $taxonomy);
+ $value = apply_filters("edit_{$taxonomy}_{$field}", $value, $term_id);
if ( 'description' == $field )
- $value = format_to_edit($value);
+ $value = esc_html($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);
+ $value = apply_filters("pre_term_{$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);
+ $value = apply_filters("term_{$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);
+ $value = apply_filters("term_{$field}", $value, $term_id, $taxonomy, $context);
+ $value = apply_filters("{$taxonomy}_{$field}", $value, $term_id, $context);
}
if ( 'attribute' == $context )
/**
* Count how many terms are in Taxonomy.
*
- * Default $args is 'ignore_empty' which can be <code>'ignore_empty=true'</code>
- * or <code>array('ignore_empty' => true);</code>.
+ * 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 $wpdb
+ * @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
+ * @param array|string $args Overwrite defaults. See get_terms()
* @return int How many terms are in $taxonomy
*/
function wp_count_terms( $taxonomy, $args = array() ) {
- global $wpdb;
-
- $defaults = array('ignore_empty' => false);
+ $defaults = array('hide_empty' => false);
$args = wp_parse_args($args, $defaults);
- extract($args, EXTR_SKIP);
- $where = '';
- if ( $ignore_empty )
- $where = 'AND count > 0';
+ // backwards compatibility
+ if ( isset($args['ignore_empty']) ) {
+ $args['hide_empty'] = $args['ignore_empty'];
+ unset($args['ignore_empty']);
+ }
+
+ $args['fields'] = 'count';
- return $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE taxonomy = %s $where", $taxonomy) );
+ return get_terms($taxonomy, $args);
}
/**
- * Will unlink the term from the taxonomy.
+ * Will unlink the object from the taxonomy or taxonomies.
*
- * Will remove the term's relationship to the taxonomy, not the term or taxonomy
- * itself. The term and taxonomy will still exist. Will require the term's
- * object ID to perform the operation.
+ * 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
* @uses $wpdb
*
* @param int $object_id The term Object Id that refers to the term
- * @param string|array $taxonomy List of Taxonomy Names or single Taxonomy name.
+ * @param string|array $taxonomies List of Taxonomy Names or single Taxonomy name.
*/
function wp_delete_object_term_relationships( $object_id, $taxonomies ) {
global $wpdb;
$taxonomies = array($taxonomies);
foreach ( (array) $taxonomies as $taxonomy ) {
- $tt_ids = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
+ $tt_ids = wp_get_object_terms($object_id, $taxonomy, array('fields' => 'tt_ids'));
$in_tt_ids = "'" . implode("', '", $tt_ids) . "'";
+ do_action( 'delete_term_relationships', $object_id, $tt_ids );
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id) );
+ do_action( 'deleted_term_relationships', $object_id, $tt_ids );
wp_update_term_count($tt_ids, $taxonomy);
}
}
$term = (int) $term;
- if ( ! $ids = is_term($term, $taxonomy) )
+ 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) ) {
+ if ( isset( $default ) ) {
$default = (int) $default;
- if ( ! is_term($default, $taxonomy) )
+ if ( ! term_exists($default, $taxonomy) )
unset($default);
}
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", $tt_id ) );
wp_set_object_terms($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 );
+
+ do_action( 'delete_term_taxonomy', $tt_id );
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $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) ) )
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 doesnt 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.
*
* @since 2.3.0
* @uses $wpdb
*
- * @param int|array $object_id The id of the object(s) to retrieve.
+ * @param int|array $object_ids The ID(s) of the object(s) to retrieve.
* @param string|array $taxonomies The taxonomies to retrieve terms from.
* @param array|string $args Change what is returned
* @return array|WP_Error The requested term data or empty array if no terms found. WP_Error if $taxonomy does not exist.
$taxonomies = array($taxonomies);
foreach ( (array) $taxonomies as $taxonomy ) {
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
}
* @since 2.3.0
* @uses $wpdb
*
+ * @uses apply_filters() Calls 'pre_insert_term' hook with term and taxonomy as parameters.
* @uses do_action() Calls 'create_term' hook with the term id and taxonomy id as parameters.
* @uses do_action() Calls 'create_$taxonomy' hook with term id and taxonomy id as parameters.
* @uses apply_filters() Calls 'term_id_filter' hook with term id and taxonomy id as parameters.
* @uses do_action() Calls 'created_term' hook with the term id and taxonomy id as parameters.
* @uses do_action() Calls 'created_$taxonomy' hook with term id and taxonomy id as parameters.
*
- * @param int|string $term The term to add or update.
+ * @param string $term The term to add or update.
* @param string $taxonomy The taxonomy to which to add the term
* @param array|string $args Change the values of the inserted term
* @return array|WP_Error The Term ID and Term Taxonomy ID
function wp_insert_term( $term, $taxonomy, $args = array() ) {
global $wpdb;
- if ( ! is_taxonomy($taxonomy) )
+ 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'));
} 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 );
$wpdb->update($wpdb->terms, compact('term_group'), array('term_id' => $alias->term_id) );
+ do_action( 'edited_terms', $alias->term_id );
}
}
- if ( ! $term_id = is_term($slug) ) {
- if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) )
- return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error);
- $term_id = (int) $wpdb->insert_id;
- } else if ( is_taxonomy_hierarchical($taxonomy) && !empty($parent) ) {
- // If the taxonomy supports hierarchy and the term has a parent, make the slug unique
- // by incorporating parent slugs.
+ if ( $term_id = term_exists($slug) ) {
+ $existing_term = $wpdb->get_row( $wpdb->prepare( "SELECT name FROM $wpdb->terms WHERE term_id = %d", $term_id), ARRAY_A );
+ // We've got an existing term in the same taxonomy, which matches the name of the new term:
+ if ( is_taxonomy_hierarchical($taxonomy) && $existing_term['name'] == $name && $exists = term_exists( (int) $term_id, $taxonomy ) ) {
+ // Hierarchical, and it matches an existing term, Do not allow same "name" in the same level.
+ $siblings = get_terms($taxonomy, array('fields' => 'names', 'get' => 'all', 'parent' => (int)$parent) );
+ if ( in_array($name, $siblings) ) {
+ return new WP_Error('term_exists', __('A term with the name provided already exists with this parent.'), $exists['term_id']);
+ } 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 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 );
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
+ do_action( 'edited_terms', $term_id );
}
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) );
$wpdb->insert( $wpdb->term_taxonomy, compact( 'term_id', 'taxonomy', 'description', 'parent') + array( 'count' => 0 ) );
$tt_id = (int) $wpdb->insert_id;
- do_action("create_term", $term_id, $tt_id);
+ do_action("create_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);
+ 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);
* @uses $wpdb
*
* @param int $object_id The object to relate to.
- * @param array|int|string $term The slug or id of the term, will replace all existing
+ * @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.
$object_id = (int) $object_id;
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return new WP_Error('invalid_taxonomy', __('Invalid Taxonomy'));
if ( !is_array($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();
$term_ids = array();
if ( !strlen(trim($term)) )
continue;
- if ( !$term_info = is_term($term, $taxonomy) )
+ if ( !$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'];
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, $tt_id );
}
wp_update_term_count($tt_ids, $taxonomy);
$delete_terms = array_diff($old_tt_ids, $tt_ids);
if ( $delete_terms ) {
$in_delete_terms = "'" . implode("', '", $delete_terms) . "'";
+ do_action( 'delete_term_relationships', $object_id, $delete_terms );
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_delete_terms)", $object_id) );
+ do_action( 'deleted_term_relationships', $object_id, $delete_terms );
wp_update_term_count($delete_terms, $taxonomy);
}
}
if ( ! $append && isset($t->sort) && $t->sort ) {
$values = array();
$term_order = 0;
- $final_tt_ids = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids');
+ $final_tt_ids = wp_get_object_terms($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);
$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)");
}
- do_action('set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append);
+ do_action('set_object_terms', $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids);
return $tt_ids;
}
* slug has to be globally unique for every taxonomy.
*
* The way this works is that if the taxonomy that the term belongs to is
- * heirarchical and has a parent, it will append that parent to the $slug.
+ * hierarchical and has a parent, it will append that parent to the $slug.
*
* If that still doesn't return an unique slug, then it try to append a number
* until it finds a number that is truely unique.
function wp_unique_term_slug($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) ) {
$parent_term = get_term($the_parent, $term->taxonomy);
if ( is_wp_error($parent_term) || empty($parent_term) )
break;
- $slug .= '-' . $parent_term->slug;
+ $slug .= '-' . $parent_term->slug;
+ if ( ! term_exists( $slug ) )
+ return $slug;
+
if ( empty($parent_term->parent) )
break;
$the_parent = $parent_term->parent;
function wp_update_term( $term_id, $taxonomy, $args = array() ) {
global $wpdb;
- if ( ! is_taxonomy($taxonomy) )
+ if ( ! taxonomy_exists($taxonomy) )
return new WP_Error('invalid_taxonomy', __('Invalid taxonomy'));
$term_id = (int) $term_id;
} 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 );
$wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) );
+ do_action( 'edited_terms', $alias->term_id );
}
}
+ // 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) )
+ 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 );
$wpdb->update($wpdb->terms, compact( 'name', 'slug', 'term_group' ), compact( 'term_id' ) );
-
if ( empty($slug) ) {
$slug = sanitize_title($name, $term_id);
$wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) );
}
+ do_action( 'edited_terms', $term_id );
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id) );
-
+ 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 );
- do_action("edit_term", $term_id, $tt_id);
+ 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);
+ 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);
$taxonomy = get_taxonomy($taxonomy);
if ( !empty($taxonomy->update_count_callback) ) {
- call_user_func($taxonomy->update_count_callback, $terms);
+ call_user_func($taxonomy->update_count_callback, $terms, $taxonomy);
} else {
// Default count updater
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, $taxonomy );
}
}
- clean_term_cache($terms);
+ clean_term_cache($terms, '', false);
return true;
}
*
* @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, $taxonomy = '') {
+function clean_term_cache($ids, $taxonomy = '', $clean_taxonomy = true) {
global $wpdb;
static $cleaned = array();
$taxonomies = array();
// If no taxonomy, assume tt_ids.
if ( empty($taxonomy) ) {
- $tt_ids = implode(', ', $ids);
+ $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 {
- foreach ( $ids as $id ) {
- wp_cache_delete($id, $taxonomy);
- }
$taxonomies = array($taxonomy);
+ foreach ( $taxonomies as $taxonomy ) {
+ foreach ( $ids as $id ) {
+ wp_cache_delete($id, $taxonomy);
+ }
+ }
}
foreach ( $taxonomies as $taxonomy ) {
if ( isset($cleaned[$taxonomy]) )
continue;
$cleaned[$taxonomy] = true;
- wp_cache_delete('all_ids', $taxonomy);
- wp_cache_delete('get', $taxonomy);
- delete_option("{$taxonomy}_children");
+
+ 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', time(), 'terms');
-
- do_action('clean_term_cache', $ids, $taxonomy);
}
if ( empty( $ids ) )
return false;
- $terms = wp_get_object_terms($ids, $taxonomies, 'fields=all_with_object_id');
+ $terms = wp_get_object_terms($ids, $taxonomies, array('fields' => 'all_with_object_id'));
$object_terms = array();
foreach ( (array) $terms as $term )
* option. That is the name of the taxonomy, immediately followed by '_children'.
*
* @param string $taxonomy Taxonomy Name
- * @return array Empty if $taxonomy isn't hierarachical or returns children as Term IDs.
+ * @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, 'get=all');
- foreach ( $terms as $term ) {
- if ( $term->parent > 0 )
- $children[$term->parent][] = $term->term_id;
+ $terms = get_terms($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);
}
// Get the object and term ids and stick them in a lookup table
- $results = $wpdb->get_results("SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships INNER JOIN $wpdb->posts ON object_id = ID WHERE term_taxonomy_id IN (".join(',', array_keys($term_ids)).") AND post_type = 'post' AND post_status = 'publish'");
+ $tax_obj = get_taxonomy($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;
//
/**
- * Will update term count based on posts.
+ * Will update term count based on object types of the current taxonomy.
*
* Private function for the default callback for post_tag and category
* taxonomies.
* @uses $wpdb
*
* @param array $terms List of Term taxonomy IDs
+ * @param object $taxonomy Current taxonomy object of terms
*/
-function _update_post_term_count( $terms ) {
+function _update_post_term_count( $terms, $taxonomy ) {
global $wpdb;
+ $object_types = is_array($taxonomy->object_type) ? $taxonomy->object_type : array($taxonomy->object_type);
+ $object_types = esc_sql($object_types);
+
foreach ( (array) $terms as $term ) {
- $count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status = 'publish' AND post_type = 'post' AND term_taxonomy_id = %d", $term ) );
+ $count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status = 'publish' AND post_type 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 );
}
}
*
* @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
- * @return string HTML link to taxonomy term archive
+ * @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 ) {
+function get_term_link( $term, $taxonomy = '') {
global $wp_rewrite;
if ( !is_object($term) ) {
$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;
- // use legacy functions for core taxonomies until they are fully plugged in
- if ( $taxonomy == 'category' )
- return get_category_link((int) $term->term_id);
- if ( $taxonomy == 'post_tag' )
- return get_tag_link((int) $term->term_id);
+ $taxonomy = $term->taxonomy;
$termlink = $wp_rewrite->get_extra_permastruct($taxonomy);
$slug = $term->slug;
+ $t = get_taxonomy($taxonomy);
if ( empty($termlink) ) {
- $file = get_option('home') . '/';
- $t = get_taxonomy($taxonomy);
if ( $t->query_var )
- $termlink = "$file?$t->query_var=$slug";
+ $termlink = "?$t->query_var=$slug";
else
- $termlink = "$file?taxonomy=$taxonomy&term=$slug";
+ $termlink = "?taxonomy=$taxonomy&term=$slug";
+ $termlink = home_url($termlink);
} else {
- $termlink = str_replace("%$taxonomy%", $slug, $termlink);
- $termlink = get_option('home') . user_trailingslashit($termlink, 'category');
+ 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);
}
* '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()
'before' => '',
'sep' => ' ',
'after' => '',
+ 'template' => '%s: %l.'
);
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
- echo $before . join($sep, get_the_taxonomies($post)) . $after;
+ echo $before . join($sep, get_the_taxonomies($post, $r)) . $after;
}
/**
* @since 2.5.0
*
* @param int $post Optional. Post ID or will use Global Post ID (in loop).
+ * @param array $args Override the defaults.
* @return array
*/
-function get_the_taxonomies($post = 0) {
+function get_the_taxonomies($post = 0, $args = array() ) {
if ( is_int($post) )
$post =& get_post($post);
elseif ( !is_object($post) )
$post =& $GLOBALS['post'];
+ $args = wp_parse_args( $args, array(
+ 'template' => '%s: %l.',
+ ) );
+ extract( $args, EXTR_SKIP );
+
$taxonomies = array();
if ( !$post )
return $taxonomies;
- $template = apply_filters('taxonomy_template', '%s: %l.');
-
foreach ( get_object_taxonomies($post) as $taxonomy ) {
$t = (array) get_taxonomy($taxonomy);
if ( empty($t['label']) )
$links = array();
foreach ( $terms as $term )
- $links[] = "<a href='" . esc_attr(get_term_link($term, $taxonomy)) . "'>$term->name</a>";
+ $links[] = "<a href='" . esc_attr( get_term_link($term) ) . "'>$term->name</a>";
if ( $links )
$taxonomies[$taxonomy] = wp_sprintf($t['template'], $t['label'], $links, $terms);
* @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 $object_id ID of the object (post ID, link ID, ...)
+ * @param string $taxonomy Single taxonomy name
* @param int|string|array $terms Optional. Term term_id, name, slug or array of said
* @return bool|WP_Error. WP_Error on input error.
*/
return 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 ( null !== get_post_type_object( $object_type ) ) {
+ $object = get_post($object_id);
+ if ( ! is_wp_error( $object ) && isset( $object->ancestors ) && is_array( $object->ancestors ) )
+ $ancestors = $object->ancestors;
+ else {
+ while ( ! is_wp_error($object) && ! empty( $object->post_parent ) && ! in_array( $object->post_parent, $ancestors ) ) {
+ $ancestors[] = (int) $object->post_parent;
+ $object = get_post($object->post_parent);
+ }
+ }
+ }
+
+ 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;
+}
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