public StationService()
 {
     _stationRepository = new StationRepository();
     _stationMaintenanceRepository = new StationMaintenanceRepository();
     _maintenanceTypeRepository = new MaintenanceTypeRepository();
     _batteryRepository = new BatteryRepository();
     _cityRepository = new CityRepository();
 }
 public StationMaintenanceRepository()
 {
     db = new BPDbContext();
     _stationRepo = new StationRepository();
     _maintenanceTypeRepo = new MaintenanceTypeRepository();
 }