Changeset 34529 for trunk/src/wp-includes/wp-db.php

Timestamp:

09/25/2015 03:58:59 AM (9 years ago)

Author:

boonebgorges

Message:

Introduce metadata for taxonomy terms.

Adds a new table to the database schema (wp_termmeta), and a set of
*_term_meta() API functions. get_terms() and wp_get_object_terms()
now also support 'meta_query' parameters, with syntax identical to other
uses of WP_Meta_Query.

When fetching terms via get_terms() or wp_get_object_terms(), metadata for
matched terms is preloaded into the cache by default. Disable this behavior
by setting the new $update_term_meta_cache paramater to false.

To maximize performance, within WP_Query loops, the termmeta cache is *not*
primed by default. Instead, we use a lazy-loading technique: metadata for all
terms belonging to posts in the loop is loaded into the cache the first time
that get_term_meta() is called within the loop.

Props boonebgorges, sirzooro.
See #10142.

File:

• trunk/src/wp-includes/wp-db.php (modified) (2 diffs)

trunk/src/wp-includes/wp-db.php

@@ -267 +267 @@
      */
     var $tables = array( 'posts', 'comments', 'links', 'options', 'postmeta',
-        'terms', 'term_taxonomy', 'term_relationships', 'commentmeta' );
+        'terms', 'term_taxonomy', 'term_relationships', 'termmeta', 'commentmeta' );
 
     /**
@@ -382 +382 @@
      */
     public $term_taxonomy;
+
+    /**
+     * WordPress Term Meta table.
+     *
+     * @since 4.4.0
+     * @access public
+     * @var string
+     */
+    public $termmeta;
 
     /*