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Cart issues after upgrading to 9.3.5

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Mikkel Ulstrup
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Posted on 13/10/2017 02:37:47

The following is recorded on a standard 9.3.5:

https://www.screencast.com/t/np0MCEi4M

IIS:

https://www.screencast.com/t/eamhOQ3a

https://www.screencast.com/t/UjOd8snLNnH

 

The error occurs only after adding a product to the cart, and after that, on every page. IIS reset will remove the error until a new product is added to the cart.

 

There is a single Custom module in the "Module" table in the database (though this shouldn't matter) with the following values:

2364 CustomModule CustomModule 1 NULL 99 1 NULL NULL NULL NULL NULL 0 NULL 0 NULL 0 NULL NULL ViewModule

 

I can't quite figure out what is causing the error.

 

Kind regards

Mikkel Ulstrup


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Mikkel Ulstrup
Posted on 17/10/2017 09:31:25
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The error in text:

[NullReferenceException: Object reference not set to an instance of an object.]

   Dynamicweb.Content.PageService.GetFirstModulePageForArea(Int32 areaId, String moduleSystemName) +374

   Dynamicweb.Ecommerce.Frontend.EcomPageOnOutputSubscriber.CreateProductLink(OrderLine orderline) +168

   Dynamicweb.Ecommerce.Frontend.EcomPageOnOutputSubscriber.CreateInstance(Order cart, Nullable`1 areaId) +1021

   Dynamicweb.Ecommerce.Frontend.EcomPageOnOutputSubscriber.OnNotify(String notification, NotificationArgs args) +204

   Dynamicweb.Extensibility.Notifications.NotificationManager.Notify(String notification, NotificationArgs eventArgs) +861

   Dynamicweb.Frontend.PageView.Output() +715

   Dynamicweb.Frontend.DynamicwebHttpHandler.ProcessRequest(HttpContext context) +220

   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +879

   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +96

 

 
Mikkel Ulstrup
Posted on 09/11/2017 10:45:08
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I found the problem.

Dynamicweb keeps a long list of paragraphs even though their pages has been deleted. This causes the paragraph tabel to be filled with orphanaged paragraphs (see screendumb)

https://www.screencast.com/t/yYweKsN9CMg

In Dynamicweb.Content.PageService.GetFirstModulePageForArea it finds an orphanaged paragraph, wich causes a null ref when it tries to access a property on the non-existing page.

 

 
Nicolai Pedersen
Posted on 09/11/2017 11:02:56
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Hi Mikkel

Good catch. Will look into it and see how we should solve it. Cannot figure out how you got that bad data though...

Anyways, we probably need to handle it in the Paragraph repo.

Will get back.

Nicolai

 

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