public function downloadTable($id, $year, $month)
 {
     $contents = "DATA ABSENSI BINA BAKTI\n\n";
     $department = Department::find($id);
     $contents .= "Unit: ," . $department->name . "\n";
     $months = MyDate::get_month_names();
     $contents .= "Bulan: ," . $months[$month - 1] . "\n";
     $contents .= "Tahun: ," . $year . "\n\n";
     $contents .= "KODE,NAMA,NORMAL,,PULANG AWAL,,,TERLAMBAT,LUPA,TUGAS LUAR,,OTHER,TIDAK MASUK,,,JUMLAH HARI MASUK,,JUMLAH HARI TIDAK MASUK,NOMINAL UANG KONSUMSI\n";
     $contents .= ",,WEEKDAY,WEEKEND,WEEKDAY < 12,WEEKDAY >= 12,WEEKEND,,,WEEKDAY,WEEKEND,,SAKIT,IZIN,ALPHA,WEEKDAY,WEEKEND,,WEEKDAY,WEEKEND,PULANG AWAL,TOTAL\n";
     $employees = Employee::where('department_id', '=', $id)->orderBy('name')->get();
     $total = 0;
     foreach ($employees as $employee) {
         $contents .= $employee->ssn . ",";
         $contents .= $employee->name . ",";
         $data = Session::pull($employee->id, 'default');
         $total += $data['konsumsi_total'];
         $contents .= $data['normal_weekday'] . ",";
         $contents .= $data['normal_weekend'] . ",";
         $contents .= $data['pulang_awal_weekday_before_12'] . ",";
         $contents .= $data['pulang_awal_weekday'] . ",";
         $contents .= $data['pulang_awal_weekend'] . ",";
         $contents .= $data['terlambat'] . ",";
         $contents .= $data['lupa'] . ",";
         $contents .= $data['tugas_luar_weekday'] . ",";
         $contents .= $data['tugas_luar_weekend'] . ",";
         $contents .= $data['other'] . ",";
         $contents .= $data['sakit'] . ",";
         $contents .= $data['izin'] . ",";
         $contents .= $data['alpha'] . ",";
         $contents .= $data['masuk_weekday'] . ",";
         $contents .= $data['masuk_weekend'] . ",";
         $contents .= $data['tidak_masuk'] . ",";
         $contents .= $data['konsumsi_weekday'] . ",";
         $contents .= $data['konsumsi_weekend'] . ",";
         $contents .= $data['konsumsi_pulang_awal'] . ",";
         $contents .= $data['konsumsi_total'] . ",";
         $contents .= "\n";
     }
     $contents .= ",,,,,,,,,,,,,,,,,,,,," . $total;
     //        $file_name = "allowance.csv";
     $file = public_path() . "/download/allowance.csv";
     File::put($file, $contents);
     return Response::download($file, "allowance-" . strtolower($department->name) . "-" . $month . "-" . $year . ".csv", array('Content-Type' => 'text/csv', 'Content-Disposition' => 'attachment;'));
 }