public void Merge(AddToBasketViewModel item)
{
if (item.Id != Id) throw new InvalidOperationException();
if (item.Description != Description) throw new InvalidOperationException();
Quantity += item.Quantity;
}
public void AddItem(AddToBasketViewModel item)
{
var existingItem = _items.SingleOrDefault(model => model.Id == item.Id);
if (existingItem == null)
{
_items.Add(item);
return;
}
existingItem.Merge(item);
}
public void AddItem(AddToBasketViewModel item)
{
var existingItem = _items.SingleOrDefault(model => model.Id == item.Id);
if (existingItem == null)
{
_items.Add(item);
return;
}
existingItem.Merge(item);
}
public void Merge(AddToBasketViewModel item)
{
if (item.Id != Id)
{
throw new InvalidOperationException();
}
if (item.Description != Description)
{
throw new InvalidOperationException();
}
Quantity += item.Quantity;
}
public ActionResult AddToBasket(AddToBasketViewModel model)
{
var basket = HttpContext.Cache.Get("basket") as Basket;
if (basket == null)
{
basket = new Basket();
HttpContext.Cache.Add(
"basket",
basket,
null,
Cache.NoAbsoluteExpiration,
Cache.NoSlidingExpiration,
CacheItemPriority.Normal,
null);
}
basket.AddItem(model);
return RedirectToAction("Index");
}