public ActionResult ChangeQuantity(int id, int qty)
{
var cart = ShoppingCart.GetCart(this.HttpContext);
// Get the name of the item to display confirmation
int itemId = webStoreDb.Carts
.Single(item => item.RecordId == id).ItemId;
string itemName = mainDb.Items.Single(i => i.ItemID == itemId).Name;
decimal itemPrice = mainDb.Items.Single(p => p.ItemID == itemId).Price;
// Find out if new quantity is available
string cartId = cart.GetCartId(this.HttpContext);
var cartItem = webStoreDb.Carts.Single(c => c.CartId == cartId && c.RecordId == id);
int inventoryID = cartItem.InventoryId;
Inventory inventory = mainDb.Inventories.Single(i => i.InventoryID == inventoryID);
int itemAvailableQty = inventory.QuantityInStock;
var results = new ShoppingCartUpdateViewModel();
if (itemAvailableQty >= qty)
{
results.Success = true;
cart.ChangeCartQty(id, qty);
results.Message = itemName +
" has been changed to " + qty + " unit";
if (qty == 1)
results.Message += ".";
else
results.Message += "s.";
results.CartTotal = cart.GetTotal();
results.CartCount = cart.GetCount();
results.ItemCount = qty;
results.ItemTotal = itemPrice * qty;
results.UpdateId = id;
}
else
{
results.Success = false;
results.Message = "There are only " + itemAvailableQty + " of " + Server.HtmlEncode(itemName) +
" available in that size.";
}
return Json(results);
}
public ActionResult RemoveFromCart(int id)
{
var cart = ShoppingCart.GetCart(this.HttpContext);
// Get the name of the item to display confirmation
int itemId = webStoreDb.Carts
.Single(item => item.RecordId == id).ItemId;
string itemName = mainDb.Items.Single(i => i.ItemID == itemId).Name;
decimal itemPrice = mainDb.Items.Single(p => p.ItemID == itemId).Price;
// Remove from cart
cart.RemoveFromCart(id);
// Display the confirmation message
var results = new ShoppingCartUpdateViewModel
{
Success = true,
Message = itemName +
" has been removed from your shopping cart.",
CartTotal = cart.GetTotal(),
CartCount = cart.GetCount(),
UpdateId = id
};
return Json(results);
}
