Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: update_postmeta

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

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

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
254                 *
255                 * @since 2.9.0
256                 *
257                 * @param int    $meta_id    ID of metadata entry to update.
258                 * @param int    $object_id  Post ID.
259                 * @param string $meta_key   Metadata key.
260                 * @param mixed  $meta_value Metadata value. This will be a PHP-serialized string representation of the value
261                 *                           if the value is an array, an object, or itself a PHP-serialized string.
262                 */
263                do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
264           }
265      }
266
267      $result = $wpdb->update( $table, $data, $where );
268      if ( ! $result ) {
269           return false;
270      }
271
272      wp_cache_delete( $object_id, $meta_type . '_meta' );
 
Line Code
736           // Format the where query arguments.
737           $where               = array();
738           $where[ $id_column ] = $meta_id;
739
740           /** This action is documented in wp-includes/meta.php */
741           do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
742
743           if ( 'post' == $meta_type ) {
744                /** This action is documented in wp-includes/meta.php */
745                do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
746           }
747
748           // Run the update query, all fields in $data are %s, $where is a %d.
749           $result = $wpdb->update( $table, $data, $where, '%s', '%d' );
750           if ( ! $result ) {
751                return false;
752           }
753
754           // Clear the caches.