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
149      do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
150
151      if ( 'post' == $meta_type )
152           do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
153
154      $wpdb->update( $table, $data, $where );
155
156      wp_cache_delete($object_id, $meta_type . '_meta');
157
158      do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
159
160      if ( 'post' == $meta_type )
161           do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
162
163      return true;
164 }
165
166 /**
167  * Delete metadata for the specified object.
 
Line Code
434           if ( 'post' == $meta_type )
435                do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
436
437           // Run the update query, all fields in $data are %s, $where is a %d.
438           $result = (bool) $wpdb->update( $table, $data, $where, '%s', '%d' );
439
440           // Clear the caches.
441           wp_cache_delete($object_id, $meta_type . '_meta');
442
443           do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
444
445           if ( 'post' == $meta_type )
446                do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
447
448           return $result;
449      }
450
451      // And if the meta was not found.
452      return false;