public void RentCar(CarRent carRent)
{
using (var ctx = new AppDbContext()) {
CarEntity car = ctx.Cars.First(x => x.ID == carRent.CarID);
car.ClientID = carRent.ClientID;
ctx.Rents.Add(carRent);
ctx.SaveChanges();
}
}
public void ReturnCar(Int32 leaseID)
{
using (var ctx = new AppDbContext()) {
CarRent exisitngRent = ctx.Rents.First(x => x.ID == leaseID);
ctx.Rents.Remove(exisitngRent);
CarEntity car = ctx.Cars.First(x => x.ID == exisitngRent.CarID);
car.ClientID = null;
ctx.SaveChanges();
}
}
public void AddCar(CarEntity car)
{
using (var ctx = new AppDbContext()) {
if (ctx.Cars.Any(x => x.RegNumber == car.RegNumber))
{
throw new Exception("Car with such registration number exists!");
}
ctx.Cars.Add(car);
ctx.SaveChanges();
}
}
public void EditCar(CarEntity car)
{
using (var ctx = new AppDbContext()) {
if (ctx.Cars.Any(x => x.RegNumber == car.RegNumber))
{
throw new Exception("Car with such registration number exists!");
}
CarEntity existingCar = ctx.Cars.First(x => x.ID == car.ID);
existingCar.RegNumber = car.RegNumber;
existingCar.RentPricePerDay = car.RentPricePerDay;
ctx.SaveChanges();
}
}
public void RemoveCar(CarEntity car)
{
using (var ctx = new AppDbContext()) {
if (car.ClientID != null)
{
CarEntity existingCar = ctx.Cars.First(x => x.ID == car.ID);
ctx.Cars.Remove(existingCar);
ctx.SaveChanges();
}
else
{
throw new Exception("Car is rented!");
}
}
}
protected Boolean Equals(CarEntity other)
{
return(ID == other.ID);
}