private void AddBuses() { var Buses = new List <Bus>() { new Bus { BusModel = "Kamaz", BusRouteId = 1, Capacity = 60, RegistrationPlate = "123AB12", BusWorker = busWorkerRepository.GetByCitizenUserId(citizenUserRepository.GetUserByLogin("BusWorker1").Id), CurrentLocation = "", CurrentOccupation = 0, ReversedDirection = false } }; foreach (var bus in Buses.Where(x => !busRepository.BusExists(x.RegistrationPlate))) { busRepository.Save(bus); } }