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Source View: delete_postmeta

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Line Code
671  * @param unknown_type $mid
672  * @return unknown
673  */
674 function delete_meta( $mid ) {
675      global $wpdb;
676      $mid = (int) $mid;
677
678      $post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
679
680      do_action( 'delete_postmeta', $mid );
681      wp_cache_delete($post_id, 'post_meta');
682      $rval = $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
683      do_action( 'deleted_postmeta', $mid );
684
685      return $rval;
686 }
687
688 /**
689  * Get a list of previously defined keys.