public function trans_for_vehicle() { \DB::statement(\DB::raw('set @rownum=0')); $trans_for_vehicles = TransForVehicle::select([\DB::raw('@rownum := @rownum + 1 AS rownum'), 'id', 'name']); return Datatables::of($trans_for_vehicles)->addColumn('action', function ($trans_for_vehicle) { return ' <button id="btn-delete" class="btn btn-xs btn-danger" data-remote="./destroy/' . $trans_for_vehicle->id . '/' . 'for_vehicle' . '">Delete</button> '; })->make(true); }