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
151      if ( 'post' == $meta_type )
152           do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
153
154      $result = $wpdb->update( $table, $data, $where );
155      if ( ! $result )
156           return false;
157
158      wp_cache_delete($object_id, $meta_type . '_meta');
159
160      do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
161
162      if ( 'post' == $meta_type )
163           do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
164
165      return true;
166 }
167
168 /**
169  * Delete metadata for the specified object.
 
Line Code
438
439           // Run the update query, all fields in $data are %s, $where is a %d.
440           $result = $wpdb->update( $table, $data, $where, '%s', '%d' );
441           if ( ! $result )
442                return false;
443
444           // Clear the caches.
445           wp_cache_delete($object_id, $meta_type . '_meta');
446
447           do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
448
449           if ( 'post' == $meta_type )
450                do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
451
452           return true;
453      }
454
455      // And if the meta was not found.
456      return false;