teacommercelibrarygetpaymentform error sequence contains more than one matching element - Tea Commerce support

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Matt Taylor 873 posts 2086 karma points

Jan 09, 2012 @ 18:05

TeaCommerce.Library.GetPaymentForm - Error - "Sequence contains more than one matching element"

I'm using Tea Commerce1.4.2.0 BETA 4 and getting an error when calling TeaCommerce.Library.GetPaymentForm.

Sequence contains more than one matching element

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

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

Source Error:


Line 149:        public static string GetPaymentForm()
Line 150:        {
Line 151:            return TeaCommerce.Library.GetPaymentForm("<input id=\"MattButton1\" type=\"button\" value=\"Pay\" />");
Line 152:        }
Line 153:

Source File: D:\Websites\stahldatsx-umbraco\idseefeld.steel\idseefeld.steel\EcommerceHelper.cs Line: 151

Stack Trace:


[InvalidOperationException: Sequence contains more than one matching element]
   System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source, Func`2 predicate) +4472564
   TeaCommerce.PaymentProviders.PayPal.GenerateForm(Order order, String teaCommerceContinueUrl, String teaCommerceCancelUrl, String teaCommerceCallBackUrl, Dictionary`2 settings) +2444
   TeaCommerce.Base.GeneratePaymentForm(String submitInput) +1359
   TeaCommerce.Library.GetPaymentForm(String submitInput) +69
   idseefeld.steel.EcommerceHelper.GetPaymentForm() in D:\Websites\stahldatsx-umbraco\idseefeld.steel\idseefeld.steel\EcommerceHelper.cs:151
   ASP.usercontrols_idseefeld_ecommercepay_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) +38
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +131
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   umbraco.presentation.templateControls.Macro.Render(HtmlTextWriter writer) +291
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   ASP.masterpages_idsstahldatenmaster_master.__Render__control2(HtmlTextWriter __w, Control parameterContainer) +1413
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +131
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   umbraco.presentation.masterpages._default.Render(HtmlTextWriter writer) +61
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +246
   System.Web.UI.Page.Render(HtmlTextWriter writer) +40
   umbraco.UmbracoDefault.Render(HtmlTextWriter output) +82
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5290

It would seem there's a line of linq logic in TeaCommerce.PaymentProviders.PayPal.GenerateForm that is returning more than one item when only one is expected.

I've had a look in the back end to see if I have configured anything wrong but it seems OK.

Further more, the same call to GetPaymentForm works fine if the payment method is Account.

Regards,

Matt

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Anders Burla 2560 posts 8256 karma points

Jan 10, 2012 @ 09:17

0

Hi Matt

Just looked at the code for the PayPal provider - and it may look like we try and fetch some info about the orderline properties for the "productNumber" and "productName" properties. Can you verify that maybe your orderline have two of the same orderline properties for one of the keys?

Kind regards
Anders

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Matt Taylor 873 posts 2086 karma points

Jan 10, 2012 @ 10:40

0

Hi Anders,

My Tea Commerce 'General settings' are pretty much out of the box

and so is my Product document type

I have two sites, German & English and it's all set up pretty much like the multilanguage starter kit although that was not actually installed.

The English site product node looks like this

and it links to the Master product which looks like this

Looking in the database, the TeaCommerce_OrderLineProperty table contains the following records for the orderline (ID 89) in question

So yes, I do have two orderline properties for one of the keys, one for each language (2 = German, 3 = English UK).
The language for my PayPal setting (shown above) is US. Could that be the problem?

Regards,

Matt

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Anders Burla 2560 posts 8256 karma points

Jan 11, 2012 @ 10:21

0

Hi Matt

Looks like you found a bug - I have fixed it in the new beta 5 you can download at http://our.umbraco.org/projects/website-utilities/tea-commerce

Give it a try and tell me if it works :)

Kind regards
Anders

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Matt Taylor 873 posts 2086 karma points

Jan 11, 2012 @ 10:36

0

That's me, beta tester extraordinaire. ;-)

I'll try it shortly and let you know.

Thanks.

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Matt Taylor 873 posts 2086 karma points

Jan 11, 2012 @ 10:42

0

Works great, good work.
Just in time too as I'm doing a small demo of it this morning.

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