public void AssignRoom(Department department, Room room)
{
if (department == null) throw new ArgumentNullException("department");
if (room == null) throw new ArgumentNullException("room");
var existingDepartment = Context.Departments.FirstOrDefault(x => x.Id == department.Id);
if (existingDepartment == null)
{
throw new InvalidOperationException(string.Format("Department with id {0} does not exist", department.Id));
}
if (room.Id == Guid.Empty)
{
room.Id = Guid.NewGuid();
}
if (existingDepartment.Rooms.Any(x => x.Name == room.Name))
{
throw new InvalidOperationException(string.Format("Room {0} is already assigned to department {1}", room.Name, existingDepartment.Name));
}
room.Locations = Context.Locations.ToList();
existingDepartment.Rooms.Add(room);
Context.SaveChanges();
}
public void AssignRoomToDepartment(Department department, Room room)
{
if (department == null) throw new ArgumentNullException("department");
if (room == null) throw new ArgumentNullException("room");
var departmentService = new DepartmentService(Context);
departmentService.AssignRoom(department, room);
}
public void Delete(Department department)
{
if (department == null) throw new ArgumentNullException("department");
if (Context.Entry(department).State == EntityState.Detached)
{
department = Context.Departments.FirstOrDefault(x => x.Id == department.Id);
}
Context.Departments.Remove(department);
Context.SaveChanges();
}
public void Create(string name)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentNullException("name");
}
var department = new Department
{
Id = Guid.NewGuid(),
Name = name
};
Context.Departments.Add(department);
Context.SaveChanges();
}
