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  • Bill Harper 1 post 21 karma points
    Apr 02, 2015 @ 20:08
    Bill Harper
    0

    Change an existing uCommerce site addToBasket addtoexistingline from true to false

    I have a wholesale uCommerce site that has recently gone live.  Now the customer is coming back to me and saying they want each addition to the cart to be on its own line.  I found AddToBasket in the Basket helper code.  In that script changed 

    TransactionLibrary.AddToBasket(quantity, variant.Sku, variant.VariantSku); 

    to

    TransactionLibrary.AddToBasket(quantity, variant.Sku, variant.VariantSku, false, false);

    Now when the product is added to the cart, the new orderline is added but throws this error:

    ____________________________________________________

    Exception Details: System.InvalidOperationException: Sequence contains more than one element

    Source Error: 

    Line 32:         var variant = uCommerce.Functions.Product.GetVariantFromPostData(product, "variation-");
Line 33: @* View /App_Code/uCommerce/Functions/Basket.cshtml for this function *@
Line 34:         itemAddedToCart = uCommerce.Functions.Basket.AddToBasket("add-to-basket", "quantity-to-add", variant);
Line 35:         
Line 36: 

    [InvalidOperationException: Sequence contains more than one element]
   System.Linq.Enumerable.Single(IEnumerable`1 source) +691
   ASP.uCommerce.Functions.Basket.AddToBasket(String addToBasketKey, String quantityKey, Product variant) +701
   ASP._Page_macroScripts_ProductPage_cshtml.Execute() in g:\websites\EyeQEyeware.com\MacroScripts\ProductPage.cshtml:34
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +280
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +360
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +196
   umbraco.MacroEngines.RazorMacroEngine.ExecuteRazor(MacroModel macro, INode currentPage) +603
   umbraco.MacroEngines.RazorMacroEngine.Execute(MacroModel macro, INode currentPage) +376
   umbraco.macro.loadMacroScript(MacroModel macro) +295
   umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId) +6055
   umbraco.presentation.templateControls.Macro.CreateChildControls() +1849
   System.Web.UI.Control.EnsureChildControls() +189
   System.Web.UI.Control.InitRecursive(Control namingContainer) +186
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Control.InitRecursive(Control namingContainer) +291
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2098

     

    I'm relatively new to C#, Umbraco, and uCommerce. I don't see how to finish inplementing this change. The only direction I've found online is to set addToExistingLine to false but nothing further.  Any help is greatly appreciated.  

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  • Jesper Nielsen 141 posts 498 karma points
    Apr 14, 2015 @ 12:34
    Jesper Nielsen
    0

    Hello Bill,

    The exception is being thrown from inside your helper code. Not from inside uCommerce.

    So please look for a call to Single() after the call to TransactionLibrary.AddToBasket().

    There is a call to Single() somewhere. Maybe it assumes that there is only one OrderLine with a given Sku?

    Kind regards,
    Jesper

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