public ActionMessage Create(ClassroomViewModel model) { var response = new ActionMessage(); var dbClassroom = classroomRepository.GetByRoomNo(model.RoomNumber); if (dbClassroom == null) { var newClassroom = new Classroom() { RoomNumber = model.RoomNumber, Capacity = model.Capacity }; response.Message = "Classroom has been successfully created!"; classroomRepository.Add(newClassroom); } else { response.Error = "Create failed. Room number already exists!"; } return(response); }