public void AddToCart(Product product)
{
// Get the matching cart and Product instances
var cartItem = storeDB.Carts.SingleOrDefault(c => c.CartId == ShoppingCartId && c.ProductId == product.ProductId);
if (cartItem == null)
{
// Create a new cart item if no cart item exists
cartItem = new Cart
{
ProductId = product.ProductId,
CartId = ShoppingCartId,
Count = 1,
DateCreated = DateTime.Now
};
storeDB.Carts.Add(cartItem);
}
else
{
// If the item does exist in the cart, then add one to the quantity
cartItem.Count++;
}
// Save changes
storeDB.SaveChanges();
}
public ActionResult AddToCart(int productId)
{
var viewModel = (ProductOrderViewModel)Session["ProductOrderViewModel"];
if (viewModel == null) {
viewModel = new ProductOrderViewModel
{
Product = db.Products.ToList<Product>(),
Category = db.Categories.ToList<Category>()
};
Session["ProductOrderViewModel"] = viewModel;
}
var newCart = new Cart();
bool exist = false;
foreach (Cart cart in viewModel.CartItems)
{
if (cart.ProductId == productId)
{
cart.Count++;
viewModel.CartTotal += cart.Product.Price;
exist = true;
}
}
if (!exist)
{
newCart.CartId = Guid.NewGuid().ToString();
newCart.Product = db.Products.FirstOrDefault(p => p.ProductId == productId);
newCart.ProductId = productId;
newCart.DateCreated = DateTime.UtcNow;
newCart.Count = 1;
viewModel.CartTotal += newCart.Product.Price;
viewModel.CartItems.Add(newCart);
}
Session["ProductOrderViewModel"] = viewModel;
return View("ShoppingCart",viewModel);
}