public static function getDatatable()
 {
     $id = Session::get('user_id');
     $first_day = date("Y-m-01");
     $last_day = date("Y-m-t");
     $today = date("Y-m-d");
     /* MONTH user consumption*/
     $monthUserConsumption = WaterRegister::where('state', '=', 'Mendoza')->where('user_id', '=', $id)->whereBetween('date', [$first_day, $last_day])->sum('value');
     /* MONTH city consumption total and average lts/hour*/
     $user = User::select(['city_id'])->with('state', 'city')->where('id', $id)->first();
     $cityConsumption = WaterRegister::select(DB::raw('sum(value) as total, avg(value) as avg'))->where('city', '=', $user->city->name)->whereBetween('date', [$first_day, $last_day])->groupBy('city')->get();
     $cityTotalConsumption = $cityConsumption[0]->total;
     $cityAverage = $cityConsumption[0]->avg;
     /*current consumption and liters per hour (DAY)*/
     $consumption = WaterRegister::where('date', '=', $today)->where('user_id', '=', $id)->sum('value');
     $consumptionPerHour = $consumption / 60;
     /*water price*/
     $waterPrice = WaterPrice::select('price')->active()->get();
     /*water bill*/
     $price = $waterPrice[0]->price;
     $liters = WaterRegister::where('date', '=', $today)->where('user_id', '=', $id)->sum('value');
     $bill = $liters * $price;
     $aux = new stdClass();
     $aux->monthUserConsumption = $monthUserConsumption;
     $aux->cityTotalConsumption = $cityTotalConsumption;
     $aux->cityAverage = $cityAverage;
     $aux->consumptionPerHour = $consumptionPerHour;
     $aux->consumption = $consumption;
     $aux->waterPrice = $price;
     $aux->bill = $bill;
     $data = [collect($aux)];
     $datatable = Datatables::of(collect($data));
     return $datatable->make(true);
 }
 public static function getDatatable()
 {
     $water_prices = WaterPrice::select(['id', 'description', 'price', 'active', 'updated_at'])->get();
     $datatable = Datatables::of($water_prices);
     $datatable->addColumn('actions', '<a href="{{ URL::to(\'water-prices/\' . $id.\'/edit\') }}" class="btn btn-default" title="Editar" ><i class="fa fa-edit"></i></a>
                                   <a href="#deleteModal" class="mb-xs mt-xs mr-xs modal-with-zoom-anim btn btn-danger delete-link" data-href="{{ URL::to(\'water-prices/\' . $id) }}" title="Eliminar" ><i class="fa fa-trash"></i></a>');
     return $datatable->make(true);
 }