Five New Optimizely Certifications are Here! Validate your expertise and advance your career with our latest certification exams. Click here to find out more
AI OnAI Off
Cannot update line items quantity in cart
You can simply set the Quantity property of the LineItem instance to the desired value. I have to check the code to be sure but I think UpdateLineItemQuantity actually check and set the Quantity based on availability
Feb 01, 2018 2:48
I think UpdateLineItemQuantity updates the quantity, but _orderRepository does not save it.
Feb 01, 2018 9:35
Nevermind, if someone suddenly gets this issue, my solution was to not convert ILineItem to LineItem. UpdateLineItemQuantity works with ILineItem, not LineItem..
Feb 01, 2018 10:35
Actually that's not true. UpdateLineItemQuantity works with both. I checked the code now and it checks if the shipment is Shipment or not and does change the quanitty accordingly. I don't now what you have in GetCartItems, but it supposedly returns a list of LineItem. You can use cart.GetAllLineItems to return a list of ILineItem, and update the quantity directly, without having to call UpdateLineItemQuantity. A rule of thumb is to use the abstraction APIs all the way, not to mix it with the concrete classes.
Feb 02, 2018 12:38
LineItem quantity will not save, what do i do?
private List IncreaseOrDecreaseQuantity(string productCode, bool decrease)
{
var contactId = PrincipalInfo.CurrentPrincipal.GetContactId();
var cart = _orderRepository.LoadOrCreateCart(contactId, "Default");
var currentCartItems = GetCartItems();
var lineItem = currentCartItems.FirstOrDefault(x => x.Code.Equals(productCode));
var value = decrease ? -1 : 1;
if (lineItem != null)
cart.UpdateLineItemQuantity(cart.GetFirstShipment(), lineItem, lineItem.Quantity + value);
_orderRepository.Save(cart);
var a = cart.GetAllLineItems();
return currentCartItems;
} _orderRepository = IOrderRepository