Sitecore Stack Exchange is a question and answer site for developers and end users of the Sitecore CMS and multichannel marketing software. It only takes a minute to sign up.
Sign up to join this community
Sitecore 9.3
I have a view rendering where I was previously using the RenderingModel in the view,
(
)
but have switched to using the GlassMapper classes instead
(
).
This works great unless the component's data source is an unpublished item. If this happens, on the published page, I get a null exception error.
My view rendering item currently has nothing for the Model.
It seems your issue is similar to the one specified on the glass mapper issue list https://github.com/mikeedwards83/Glass.Mapper/issues/163. The workaround for the error is replacing the GetViewRenderer pipeline action:
public class GetViewRendererWithItemValidation : GetViewRenderer
{
protected override Renderer GetRenderer(Rendering rendering, GetRendererArgs args)
{
var viewRenderer = base.GetRenderer(rendering, args) as ViewRenderer;
if (viewRenderer == null)
return null;
// Ignore item check when in page editor
// Also this will break if the item for the datasource has been deleted without removing the link.
if (Context.PageMode.IsPageEditor || Context.PageMode.IsPageEditorEditing)
return viewRenderer;
// Override renderer to null when there is an unpublished item refererenced by underlying view
return viewRenderer.Rendering.Item != null && viewRenderer.Rendering.RenderingItem.InnerItem != null
? viewRenderer
: null;
}
}
Add the above as a new class in your project and activate the existing glass mapper config file z.Glass.Mapper.Sc.ViewRender.config.exclude
Also if you are using glass mapper version 4 or higher you can leave the model field blank and Glass should resolve the model based on the declaration in the view rendering's cshtml file.
