public IActionResult BuyConfirmed([Bind("Id", "quantity")] int Id, int quantity)
{
// read the selected item with id
var item = _item.ReadItem(Id);
// if squantity to buy is greater than amount of item in stock
// display error message and go back to Home/Index
if (item.AmountInStock < quantity)
{
TempData["Error"] = "Not enough product in stock!\nPlease reduce number to buy.";
return(RedirectToAction("Index", "Home"));
}
// read the currently logged on user id
var userId = _userManager.GetUserId(HttpContext.User);
// read the shopping cart associated with current user
var shoppingCart = _cart.ReadShoppingCart(userId);
// read all read CartItem associated with current user and matches Item
var cartItem = _cartItem.ReadAllCartItems().FirstOrDefault(
c => c.Name == item.Name && c.Type == item.Type && c.Price == item.Price);
// if CartItem is null
// create a new one
if (cartItem == null)
{
cartItem = new CartItems();
cartItem.Name = item.Name;
cartItem.Type = item.Type;
cartItem.Price = item.Price;
cartItem.Quantity = quantity;
cartItem.CartId = shoppingCart.Id;
cartItem.Cart = shoppingCart;
_cartItem.CreateCartItem(cartItem);
}
// if same item easists in CartItem, add selected quantity to it
else
{
cartItem.Quantity += quantity;
}
// reduce the amount of item in stock by selected quantity
item.AmountInStock -= quantity;
// update item in stock
_item.UpdateItem(item.Id, item);
// redirect to Home/Index
return(RedirectToAction("Index", "Home"));
}
public IActionResult BuyConfirmed([Bind("id", "quantity")] int id, int quantity)
{
var item = _itemRepository.ReadItem(id);
if (quantity > item.AmountInStock)
{
return(RedirectToAction("Buy", "ShoppingCart", new { id = item.Id }));
}
var applicationUserId = _userManager.GetUserId(HttpContext.User);
var shoppingCart = _shoppingCartRepository.ReadShoppingCart(applicationUserId);
var cartItem = _cartItemRepository.ReadAllCartItems().FirstOrDefault(c => c.Name == item.Name && c.Type == item.Type && c.Price == item.Price);
if (cartItem == null)
{
cartItem = new CartItem();
cartItem.Name = item.Name;
cartItem.Type = item.Type;
cartItem.Price = item.Price;
cartItem.Quantity = quantity;
cartItem.CartId = shoppingCart.Id;
cartItem.ShoppingCart = shoppingCart;
_cartItemRepository.CreateCartItem(cartItem);
}
else
{
cartItem.Quantity += quantity;
}
item.AmountInStock -= quantity;
_itemRepository.UpdateItem(item.Id, item);
return(RedirectToAction("Index", "Home"));
}