'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,
+ 'with_front' => ( get_option('tag_base') && ! $wp_rewrite->using_index_permalinks() ) ? false : true ) : false,
'public' => true,
'show_ui' => true,
'_builtin' => true,
unset( $args['capabilities'] );
$args['name'] = $taxonomy;
- $args['object_type'] = (array) $object_type;
+ $args['object_type'] = array_unique( (array)$object_type );
$args['labels'] = get_taxonomy_labels( (object) $args );
$args['label'] = $args['labels']->name;
'parent_item' => array( null, __( 'Parent Category' ) ),
'parent_item_colon' => array( null, __( 'Parent Category:' ) ),
'edit_item' => array( __( 'Edit Tag' ), __( 'Edit Category' ) ),
+ 'view_item' => array( __( 'View Tag' ), __( 'View Category' ) ),
'update_item' => array( __( 'Update Tag' ), __( 'Update Category' ) ),
'add_new_item' => array( __( 'Add New Tag' ), __( 'Add New Category' ) ),
'new_item_name' => array( __( 'New Tag Name' ), __( 'New Category Name' ) ),
if ( ! get_post_type_object($object_type) )
return false;
- $wp_taxonomies[$taxonomy]->object_type[] = $object_type;
+ if ( ! in_array( $object_type, $wp_taxonomies[$taxonomy]->object_type ) )
+ $wp_taxonomies[$taxonomy]->object_type[] = $object_type;
return true;
}
* Possible values: 'term_id', 'slug' or 'name'
* Default: 'term_id'
* - 'operator' string (optional)
- * Possible values: 'IN' and 'NOT IN'.
+ * Possible values: 'AND', 'IN' or 'NOT IN'.
* Default: 'IN'
* - 'include_children' bool (optional) Whether to include child terms.
* Default: true
* @access public
* @var array
*/
- var $queries = array();
+ public $queries = array();
/**
* The relation between the queries. Can be one of 'AND' or 'OR'.
* @access public
* @var string
*/
- var $relation;
+ public $relation;
/**
- * PHP4 type constructor.
+ * Standard response when the query should not return any rows.
+ *
+ * @since 3.2.0
+ * @access private
+ * @var string
+ */
+ private static $no_results = array( 'join' => '', 'where' => ' AND 0 = 1' );
+
+ /**
+ * Constructor.
*
* Parses a compact tax query and sets defaults.
*
* 'field' => 'slug',
* ),
* )
- *
- * @return WP_Tax_Query
*/
- function WP_Tax_Query( $tax_query ) {
+ public function __construct( $tax_query ) {
if ( isset( $tax_query['relation'] ) && strtoupper( $tax_query['relation'] ) == 'OR' ) {
$this->relation = 'OR';
} else {
* @param string $primary_id_column
* @return array
*/
- function get_sql( $primary_table, $primary_id_column ) {
+ public function get_sql( $primary_table, $primary_id_column ) {
global $wpdb;
$join = '';
$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 );
+ $this->clean_query( $query );
- 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 ( is_wp_error( $query ) ) {
+ return self::$no_results;
}
+ extract( $query );
+
if ( 'IN' == $operator ) {
if ( empty( $terms ) ) {
if ( 'OR' == $this->relation )
continue;
else
- return array( 'join' => '', 'where' => ' AND 0 = 1' );
+ return self::$no_results;
}
$terms = implode( ',', $terms );
$terms = implode( ',', $terms );
- $where[] = "$primary_table.$primary_id_column IN (
- SELECT object_id
+ $where[] = "(
+ SELECT COUNT(1)
FROM $wpdb->term_relationships
WHERE term_taxonomy_id IN ($terms)
- GROUP BY object_id HAVING COUNT(object_id) = $num_terms
- )";
+ AND object_id = $primary_table.$primary_id_column
+ ) = $num_terms";
}
$i++;
}
/**
- * Transforms a list of terms, from one field to another.
+ * Validates a single query.
*
- * @since 3.1.0
+ * @since 3.2.0
* @access private
*
- * @param array &$terms The list of terms
- * @param string $taxonomy The taxonomy of the terms
- * @param string $field The initial field
+ * @param array &$query The single query
+ */
+ private function clean_query( &$query ) {
+ if ( ! taxonomy_exists( $query['taxonomy'] ) ) {
+ $query = new WP_Error( 'Invalid taxonomy' );
+ return;
+ }
+
+ $query['terms'] = array_unique( (array) $query['terms'] );
+
+ if ( is_taxonomy_hierarchical( $query['taxonomy'] ) && $query['include_children'] ) {
+ $this->transform_query( $query, 'term_id' );
+
+ if ( is_wp_error( $query ) )
+ return;
+
+ $children = array();
+ foreach ( $query['terms'] as $term ) {
+ $children = array_merge( $children, get_term_children( $term, $query['taxonomy'] ) );
+ $children[] = $term;
+ }
+ $query['terms'] = $children;
+ }
+
+ $this->transform_query( $query, 'term_taxonomy_id' );
+ }
+
+ /**
+ * Transforms a single query, from one field to another.
+ *
+ * @since 3.2.0
+ * @access private
+ *
+ * @param array &$query The single query
* @param string $resulting_field The resulting field
*/
- function _transform_terms( &$terms, $taxonomy, $field, $resulting_field ) {
+ private function transform_query( &$query, $resulting_field ) {
global $wpdb;
- if ( empty( $terms ) )
+ if ( empty( $query['terms'] ) )
return;
- if ( $field == $resulting_field )
+ if ( $query['field'] == $resulting_field )
return;
$resulting_field = esc_sql( $resulting_field );
- switch ( $field ) {
+ switch ( $query['field'] ) {
case 'slug':
case 'name':
- $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $terms ) ) . "'";
+ $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $query['terms'] ) ) . "'";
$terms = $wpdb->get_col( "
SELECT $wpdb->term_taxonomy.$resulting_field
FROM $wpdb->term_taxonomy
INNER JOIN $wpdb->terms USING (term_id)
- WHERE taxonomy = '$taxonomy'
- AND $wpdb->terms.$field IN ($terms)
+ WHERE taxonomy = '{$query['taxonomy']}'
+ AND $wpdb->terms.{$query['field']} IN ($terms)
" );
break;
default:
- $terms = implode( ',', array_map( 'intval', $terms ) );
+ $terms = implode( ',', array_map( 'intval', $query['terms'] ) );
$terms = $wpdb->get_col( "
SELECT $resulting_field
FROM $wpdb->term_taxonomy
- WHERE taxonomy = '$taxonomy'
+ WHERE taxonomy = '{$query['taxonomy']}'
AND term_id IN ($terms)
" );
}
+
+ if ( 'AND' == $query['operator'] && count( $terms ) < count( $query['terms'] ) ) {
+ $query = new WP_Error( 'Inexistent terms' );
+ return;
+ }
+
+ $query['terms'] = $terms;
+ $query['field'] = $resulting_field;
}
}
* The 'parent' argument is different from 'child_of' in that a term X is considered a 'parent'
* of term Y only if term X is the father of term Y, not its grandfather or great-grandfather, etc.
*
+ * The 'cache_domain' argument enables a unique cache key to be produced when this query is stored
+ * in object cache. For instance, if you are using one of this function's filters to modify the
+ * query (such as 'terms_clauses'), setting 'cache_domain' to a unique value will not overwrite
+ * the cache for similar queries. Default value is 'core'.
+ *
* @package WordPress
* @subpackage Taxonomy
* @since 2.3.0
'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' => '');
+ 'pad_counts' => false, 'offset' => '', 'search' => '', 'cache_domain' => 'core' );
$args = wp_parse_args( $args, $defaults );
$args['number'] = absint( $args['number'] );
$args['offset'] = absint( $args['offset'] );
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