Using CartViewModel with 'Shopping cart': Unable to render view model template because no view model has been set.

Roald Haahr Jensen

Posted on 09/10/2019 12:27:32

Hi,

Using 9.7.2, we are trying to render a 'Shopping cart' step inheriting from Dynamicweb.Frontend.CartViewModel. However, leading the template with

@inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.CartViewModel>

will result in the following error:

Error executing template "Designs/Site/eCom7/CartV2/Step/CartOrderLines.cshtml"
System.InvalidOperationException: Unable to render view model template because no view model has been set.
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()

Is this the view model to use or is there another one that works?

Our workaround was to make a new page template inheriting from Dynamicweb.Frontend.PageViewModel, as that one has the CartViewModel available in Model.Cart, which we can then use to work our magic. With this approach, however, there is no 'Shopping cart' app to provide us with a flow.

Best regards,
Roald, Novicell

Replies

Nicolai Pedersen

Posted on 09/10/2019 21:19:00

Shopping cart step templates do not support the CartViewmodel - it is only valid in the context of a pageviewmodel...

Sorry about the inconvenience.

BR Nicolai

Roald Haahr Jensen

Posted on 10/10/2019 09:05:13

Hi Nicolai,

In that case, let me put it down as a feature request.

In order to keep a consistent way of developing our templates, I would like to an app available along the lines of 'Shopping cart for view model', just like the 'Product catalogue for view model'-app, where I can inherit from Dynamicweb.Ecommerce.ProductCatalog.ProductListViewModel.

Best regards,
Roald

Nicolai Pedersen

Posted on 11/10/2019 09:34:24

Yes, we would like that too! It is a big task though, but it is on our radar!

Roald Haahr Jensen

Posted on 11/10/2019 10:40:29

That's good to know! Are there any plans as to when this will be implemented?

Nicolai Pedersen

Posted on 11/10/2019 11:18:26

Currently not. The cart app is relatively complex, and right now we have other priorities.

But a rewrite of all cart features, i.e. cartcatch (all cart operations), the cart app and support for webapi is high on our todo list. But it will not be before 9.8

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Using CartViewModel with 'Shopping cart': Unable to render view model template because no view model has been set.

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