public Rent AddRent(string userName, Rent newRent)
{
var user = _context.Users.Include(u => u.Rents).Where(u => u.UserName == userName).FirstOrDefault();
newRent.User = user;
var car = _context.Cars.Where(c => c.CarId == newRent.CarId).FirstOrDefault();
newRent.Car = car;
if (car == null)
{
throw new ArgumentException();
}
_context.Rents.Add(newRent);
_context.SaveChanges();
return(newRent);
}
public Car AddCar(string userName, Car newCar)
{
User user = _context.Users.Where(u => u.UserName == userName).Include(u => u.Cars).FirstOrDefault();
user.Cars.Add(newCar);
_context.SaveChanges();
return(newCar);
}