PHP app Album::truncate示例

 public function updateAlbum(Request $request)
 {
     $albums = json_decode($request->all()['albums'], true);
     $len = count($albums);
     DB::statement('SET FOREIGN_KEY_CHECKS=0;');
     Album::truncate();
     Photo::truncate();
     Album::reindex();
     DB::statement('SET FOREIGN_KEY_CHECKS=1;');
     foreach ($albums as $a) {
         $album = new Album();
         $album->album_id = $a['id'];
         $album->name = $a['name'];
         $album->created_time = $a['created_time'];
         $album->save();
         $photos = $a['photos']['data'];
         foreach ($photos as $p) {
             $photo = new Photo();
             $photo->album_id = $album->id;
             $photo->photo_id = $p['id'];
             $photo->source = $p['source'];
             $photo->save();
         }
     }
     return '1';
 }