public void Add(int productId, int quantity = 1)
{
// only add if in stock: removed from stock when order processed (
var product = GetProduct(productId);
if (!product.UseStockControl || (product != null && product.InStock > 0))
{
var item = Items.SingleOrDefault(x => x.ProductId == productId);
if (item == null)
{
item = new ShoppingCartItem(productId, quantity);
ItemsInternal.Add(item);
// add the default shipping 'product' to cover packing and shipping costs
var shippingProductId = _webshopSettings.GetShippingProductRecordId();
if (shippingProductId > 0 && product.IsShippable && !ItemsInternal.Exists(i => i.ProductId == shippingProductId))
{
ItemsInternal.Add(new ShoppingCartItem(shippingProductId, 1));
}
}
// DG: Comment this out to limit to one item (because it's easy to click 'Add' multiple times)
// TODO: make it a setting
else
{
item.Quantity += quantity;
}
}
}
