Source View: updated_{$meta_type}_meta

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

This hook occurs 2 times in this file.

Line Code
258            * object type (comment, post, or user).
259            *
260            * @since 2.9.0
261            *
262            * @param int    $meta_id    ID of updated metadata entry.
263            * @param int    $object_id  Object ID.
264            * @param string $meta_key   Meta key.
265            * @param mixed  $meta_value Meta value.
266            */
267           do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
268
269           if ( 'post' == $meta_type ) {
270                /**
271                 * Fires immediately after updating a post's metadata.
272                 *
273                 * @since 2.9.0
274                 *
275                 * @param int    $meta_id    ID of updated metadata entry.
276                 * @param int    $object_id  Object ID.
 
Line Code
666           // Run the update query, all fields in $data are %s, $where is a %d.
667           $result = $wpdb->update( $table, $data, $where, '%s', '%d' );
668           if ( ! $result )
669                return false;
670
671           // Clear the caches.
672           wp_cache_delete($object_id, $meta_type . '_meta');
673
674           /** This action is documented in wp-includes/meta.php */
675           do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
676
677           if ( 'post' == $meta_type ) {
678                /** This action is documented in wp-includes/meta.php */
679                do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
680           }
681
682           return true;
683      }
684