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  • Mark V 7 posts 97 karma points
    5 days ago
    Mark V
    0

    Null Reference Error when trying to add a product to order

    I've taken code from the example site and applied it in mine but keep getting this error whenever I try to add an item to the cart.

    enter image description here

    I've tweaked the code to have a hardcoded product just to test the snippet but it's still in a surface controller. The weird part is that the code works when I debug, add a break point on the erroring line and inspect order. After that the code works fine, it adds the product and creates the order no problem.

      at Vendr.Core.Calculators.OrderLineCalculator.CalculateOrderLineUnitPrice(OrderReadOnly order, OrderLineReadOnly orderLine, Guid currencyId, TaxRate taxRate)
      at Vendr.Core.Pipelines.OrderLine.Tasks.CalculateOrderLineUnitPriceWithoutDiscountsTask.Execute(OrderLineCalculationPipelineArgs args)
      at Vendr.Core.Pipelines.PipelineTaskWithTypedArgsBase`2.Execute(PipelineArgs`1 args)
      at Vendr.Core.Pipelines.PipelineTaskBase`2.Execute(PipelineArgs input)
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.Vendr.Core.Pipelines.IPipelineInvoker.Invoke(IEnumerable`1 pipelineTasks, PipelineArgs args)
      at Vendr.Core.Pipelines.Pipeline.Invoke[TPipeline,TArgs,TEntity](Func`2 argsFactory)
      at Vendr.Core.Pipelines.Order.Tasks.OrderLinesCalculationPipelineTaskBase`1.Execute(OrderCalculationPipelineArgs args)
      at Vendr.Core.Pipelines.PipelineTaskWithTypedArgsBase`2.Execute(PipelineArgs`1 args)
      at Vendr.Core.Pipelines.PipelineTaskBase`2.Execute(PipelineArgs input)
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.Vendr.Core.Pipelines.IPipelineInvoker.Invoke(IEnumerable`1 pipelineTasks, PipelineArgs args)
      at Vendr.Core.Pipelines.Pipeline.Invoke[TPipeline,TArgs,TEntity](Func`2 argsFactory)
      at Vendr.Core.Pipelines.SubPipelineTaskBase`2.Execute(PipelineArgs`1 input)
      at Vendr.Core.Pipelines.PipelineTaskBase`2.Execute(PipelineArgs input)
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.<Vendr.Core.Pipelines.IPipelineInvoker.Invoke>g__next|2_0(PipelineArgs e, <>c__DisplayClass2_0& )
      at Vendr.Core.Pipelines.InProcPipelineInvoker.Vendr.Core.Pipelines.IPipelineInvoker.Invoke(IEnumerable`1 pipelineTasks, PipelineArgs args)
      at Vendr.Core.Pipelines.Pipeline.Invoke[TPipeline,TArgs,TEntity](Func`2 argsFactory)
      at Vendr.Core.Calculators.OrderCalculator.CalculateOrder(OrderReadOnly order)
      at Vendr.Core.Models.Order.Recalculate(Boolean force, IOrderCalculator orderCalculator)
      at Vendr.Core.Models.Order.Recalculate(IOrderCalculator orderCalculator)
      at Vendr.Core.OrderExtensions.Recalculate(Order order)
      at Vendr.Core.Services.OrderService.SaveOrder(Order entity)
      at MyCoolSite.Core.Controllers.Surface.CartSurfaceController.AddToCart(String productReference) in C:\Sites\MyCoolSite\MyCoolSite\MyCoolSite.Core\Controllers\Surface\CartSurfaceController.cs:line 49
      at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
      at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState)
      at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)
      at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
      at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_0.<InvokeActionMethodFilterAsynchronouslyRecursive>b__0()
      at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_2.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
    
  • Matt Brailsford 2469 posts 12071 karma points MVP 6x c-trib
    5 days ago
    Matt Brailsford
    0

    Hi Mark,

    What version of Vendr are you using?

    /Matt

  • Mark V 7 posts 97 karma points
    5 days ago
    Mark V
    0

    Hey Matt,

    At the time of writing it was 1.1.3 but I've just updated to 1.1.4 and seeing the same results

  • Matt Brailsford 2469 posts 12071 karma points MVP 6x c-trib
    5 days ago
    Matt Brailsford
    100

    Hmm, do you have a price defined on your product for the orders given currency?

  • Mark V 7 posts 97 karma points
    4 days ago
    Mark V
    0

    That was it!

    I was playing around and ended up deleting and creating a few new stores and seems changing the store resets the prices. I knew I had something similar working yesterday.

    Thank you very much

  • Matt Brailsford 2469 posts 12071 karma points MVP 6x c-trib
    4 days ago
    Matt Brailsford
    1

    No problem.

    I'll still go add it as a bug on our issue tracker as we ultimately have some code that isn't performing a null check.

    Thanks for reporting it and glad we could get you working 👍

    /Matt

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