public static bool UpdateCart(int userId, int productId, int quantity)
{
Product p = ProductHandler.GetProduct(productId);
if (quantity > p.Stock)
{
return(false);
}
CartRepository.UpdateCart(userId, productId, quantity);
return(true);
}
public static bool DeleteCart(int userId, int productId)
{
Product p = ProductHandler.GetProduct(productId);
User u = UserHandler.GetUser(userId);
if (u != null && p != null)
{
CartRepository.DeleteCart(userId, productId);
return(true);
}
return(false);
}
public static bool InsertCart(int userId, int productId, int quantity)
{
Product p = ProductHandler.GetProduct(productId);
Cart c = CartRepository.GetCart(userId, productId);
if (quantity > p.Stock)
{
return(false);
}
if (c != null)
{
int new_quantity = c.Quantity + quantity;
CartRepository.UpdateCart(userId, productId, new_quantity);
return(true);
}
CartRepository.InsertCart(userId, productId, quantity);
return(true);
}