public void AddProductToOrder(int productId, int orderId)
{
var order = _context.Orders
.Include(o => o.ProductLines)
.ThenInclude(pl => pl.Product)
.First(o => o.ID == orderId);
var existingProductLine = _context.ProductLines.Where(pl => pl.Order.ID == orderId && pl.Product.ID == productId).FirstOrDefault();
if (existingProductLine is not null)
{
existingProductLine.Quantity += 1;
}
else
{
var newProductLine = new ProductLine()
{
Product = new()
{
ID = productId
},
Quantity = 1,
Order = order
};
_context.ProductLines.Add(newProductLine);
}
order.TotalPrice = order.ProductLines.Sum(pl => pl.Quantity * pl.Product.Price);
_context.SaveChanges();
}
}
public void CreateOrder(Order order)
{
_context.Orders.Add(order);
_context.SaveChanges();
}
