Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: delete_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

Line Code
642  * @param unknown_type $mid
643  * @return unknown
644  */
645 function delete_meta( $mid ) {
646      global $wpdb;
647      $mid = (int) $mid;
648
649      $post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
650
651      do_action( 'delete_postmeta', $mid );
652      wp_cache_delete($post_id, 'post_meta');
653      $rval = $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
654      do_action( 'deleted_postmeta', $mid );
655
656      return $rval;
657 }
658
659 /**
660  * Get a list of previously defined keys.