public function ma_asset_items()
 {
     \DB::statement(\DB::raw('set @rownum=0'));
     $datas = TransactionItem::select([\DB::raw('@rownum  := @rownum  + 1 AS rownum'), 'id', 'index', 'name'])->where('user_id', '=', Auth::user()->id);
     return Datatables::of($datas)->addColumn('action', function ($data) {
         return '
     <a href="#" class="btn btn-xs btn-warning"><i class="glyphicon glyphicon-edit"></i> Edit</a>
     <a href="#" class="btn btn-xs btn-default"><i class="glyphicon glyphicon-edit"></i> View</a>
     ';
     })->make(true);
 }