Different cartitems in shopping cart for same SKU

Atri Dwivedi asked on May 24, 2017 12:00

I am creating a custom shopping cart. Whenever I try to add a new cartitem of same SKU using below line of code

ShoppingCartItemParameters parameters = new ShoppingCartItemParameters(oSKUInfo.SKUID, 1);
parameters.Price = oSKUInfo.SKUPrice;
ShoppingCartItemInfo oShoppingCartItemInfo = oShoppingCartInfo.SetShoppingCartItem(oShoppingCartItemParameters);
ShoppingCartItemInfoProvider.SetShoppingCartItemInfo(oShoppingCartItemInfo);

It increase SKU Unit count, instead of adding a new cart item. But In our scenario we want a different cart item to be added in shopping cart. I am unable to find any solution as of now.

Please help.

Correct Answer

Atri Dwivedi answered on May 31, 2017 16:33

Hi,

Received following reply from Technical kentico support team, Which worked for me. : -

The behavior of ShoppingCartInfo.SetShoppingCartItem method is that it increases quantity of the existing item with same parameters (mainly product options) instead of adding new separate item.
You can work your way around this behavior by using more low level code, something as:
...
            // Create new shopping cart item with initialized item GUID
            ShoppingCartItemInfo item = new ShoppingCartItemInfo();

            // Initialize product properties
            item.SKUID = itemParams.SKUID;
            item.CartItemUnits = itemParams.Quantity;
            item.CartItemPrice = itemParams.Price;

            if ((cart == null) || (item == null))
            {
                return; 
            }

            // Reference item to the shopping cart
            item.ShoppingCartID = cart.ShoppingCartID;
            item.ShoppingCart = cart;

            // Add item to the shopping cart
            cart.CartItems.Add(item);

            // Set the cart item into DB
            ShoppingCartItemInfoProvider.SetShoppingCartItemInfo(item)

            // Invalidate cart calculations
            cart.InvalidateCalculations();
...

It is also possible to override the default behavior od the SetShoppingCartItem method in custom provider, but as you're using custom code to add products to cart anyway, it may not be necessary.
If your item has options, you'd have to do a lot more following actions (save all the option items, process the price changes, etc.), but if you're using standard products without options, it should be sufficient.
If you're using product type Donation, then you may need to do some other steps too. Just let me know if that's the case in your scenario.

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Recent Answers

Prashant Verma answered on May 24, 2017 12:39

Hi Atri,

Increase in SKU Unit count is default behavior you cannot list a product with same SKUID as different cart item it should always represent the same product in cart item with increased count.

SKU means Stock keeping unit(Wiki). The SKU in Kentico is the product object which represent the quantity of number product's associated with same SKU.

Thanks

Happy to help you

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Atri Dwivedi answered on May 24, 2017 14:34 (last edited on May 24, 2017 14:35)

Hi Prashant,

Thanks for your response, I do understand it is a default behavior. But in our case we want to treat it as separate entity. We do not provide option for applying quantity of any SKU unit. Can you help me to suggest any alternate or customized way to implement it.

Thanks in advance.