DB::affectedRows PHP Method

    public static function affectedRows()
    {
        $args = func_get_args();
        return call_user_func_array(array(DB::getMDB(), 'affectedRows'), $args);
    }

 public static function updateViewCount(array $viewCount)
 {
     if (!$viewCount) {
         return 0;
     }
     $query = 'update `clips` set `view_count` =  case ';
     foreach ($viewCount as $clip_id => $view_count) {
         $query .= ' when `id` = ' . intval($clip_id) . ' then ' . intval($view_count);
     }
     unset($clip_id, $view_count);
     $query .= ' end';
     DB::query($query);
     return DB::affectedRows();
 }