* Creates the initial taxonomies when 'init' action is fired.
*/
function create_initial_taxonomies() {
+ global $wp_rewrite;
+
register_taxonomy( 'category', 'post', array(
'hierarchical' => true,
'update_count_callback' => '_update_post_term_count',
- 'query_var' => false,
- 'rewrite' => false,
+ 'query_var' => 'category_name',
+ 'rewrite' => did_action( 'init' ) ? array(
+ 'hierarchical' => true,
+ 'slug' => get_option('category_base') ? get_option('category_base') : 'category',
+ 'with_front' => ( get_option('category_base') && ! $wp_rewrite->using_index_permalinks() ) ? false : true ) : 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' => false,
- 'rewrite' => false,
+ 'query_var' => 'tag',
+ 'rewrite' => did_action( 'init' ) ? array(
+ 'slug' => get_option('tag_base') ? get_option('tag_base') : 'tag',
+ 'with_front' => ( get_option('category_base') && ! $wp_rewrite->using_index_permalinks() ) ? false : true ) : 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' ),
'show_ui' => false,
'_builtin' => true,
'show_in_nav_menus' => false,
- ) ) ;
+ ) );
register_taxonomy( 'link_category', 'link', array(
'hierarchical' => false,
'labels' => array(
- 'name' => __( 'Categories' ),
- 'singular_name' => __( 'Category' ),
- 'update_item' => __( 'Update Category' ),
+ '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
$args['rewrite'] = wp_parse_args($args['rewrite'], array(
'slug' => sanitize_title_with_dashes($taxonomy),
'with_front' => true,
+ 'hierarchical' => false
));
- $wp_rewrite->add_rewrite_tag("%$taxonomy%", '([^/]+)', $args['query_var'] ? "{$args['query_var']}=" : "taxonomy=$taxonomy&term=");
+
+ 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, "{$args['rewrite']['slug']}/%$taxonomy%", $args['rewrite']['with_front']);
}
$wp_taxonomies[$taxonomy] = (object) $args;
// register callback handling for metabox
- add_filter('wp_ajax_add-'.$taxonomy, '_wp_ajax_add_hierarchical_term');
+ add_filter('wp_ajax_add-' . $taxonomy, '_wp_ajax_add_hierarchical_term');
}
/**
'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 );
}
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.
*
$value = stripslashes($value);
$field = 't.name';
} else {
- return get_term( (int) $value, $taxonomy, $output, $filter);
+ $term = get_term( (int) $value, $taxonomy, $output, $filter);
+ if ( is_wp_error( $term ) )
+ $term = false;
+ return $term;
}
$term = $wpdb->get_row( $wpdb->prepare( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = %s AND $field = %s LIMIT 1", $taxonomy, $value) );
* @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
*/
* @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 ) {
+ 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' => array(), 'exclude_tree' => array(), 'include' => array(),
'number' => '', 'fields' => 'all', 'slug' => '', 'parent' => '',
$args['hierarchical'] = false;
$args['pad_counts'] = false;
}
+
+ $args = apply_filters( 'get_terms_args', $args, $taxonomies );
+
extract($args, EXTR_SKIP);
if ( $child_of ) {
else
$order = '';
- $where = '';
+ $where = "tt.taxonomy IN ('" . implode("', '", $taxonomies) . "')";
$inclusions = '';
if ( !empty($include) ) {
$exclude = '';
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'));
+ $excluded_children = (array) get_terms($taxonomies[0], array('child_of' => intval($extrunk), 'fields' => 'ids', 'hide_empty' => 0));
$excluded_children[] = $extrunk;
foreach( $excluded_children as $exterm ) {
if ( empty($exclusions) )
}
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;
+ $limits = 'LIMIT ' . $offset . ',' . $number;
else
- $limit = 'LIMIT ' . $number;
+ $limits = 'LIMIT ' . $number;
} else {
- $limit = '';
+ $limits = '';
}
if ( !empty($search) ) {
$selects = array();
switch ( $fields ) {
- case 'all':
- $selects = array('t.*', 'tt.*');
- break;
- case 'ids':
+ 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':
+ $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(*)');
- }
- $select_this = implode(', ', apply_filters( 'get_terms_fields', $selects, $args ));
+ $selects = array('COUNT(*)');
+ }
+
+ $_fields = $fields;
+
+ $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 $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 $orderby $order $limit";
+ $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);
}
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;
}
$terms = array_slice($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;
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 )
}
/**
- * 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;
$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) $default;
if ( ! term_exists($default, $taxonomy) )
unset($default);
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 );
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.
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 && term_exists( (int) $term_id, $taxonomy ) ) {
+ if ( is_taxonomy_hierarchical($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.'));
+ 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' ) ) )
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 ( term_exists( (int) $term_id, $taxonomy ) ) {
+ } 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.'));
+ 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.
* @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.
}
}
+ // 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) ) {
*
* @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) ) {
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) ) {
- $t = get_taxonomy($taxonomy);
- if ( $t->query_var )
+ if ( 'category' == $taxonomy )
+ $termlink = '?cat=' . $term->term_id;
+ elseif ( $t->query_var )
$termlink = "?$t->query_var=$slug";
else
$termlink = "?taxonomy=$taxonomy&term=$slug";
$termlink = home_url($termlink);
} else {
- $termlink = str_replace("%$taxonomy%", $slug, $termlink);
+ 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.
*/
* @uses get_object_taxonomies()
*
* @param string $object_type Object type string
- * @param string $taxonomy. Single taxonomy name
+ * @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) {
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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