Adding tabs to plugin model views

[atownson]

I'm working on a custom plugin and would like to leverage a generic relation from a custom model to ContactAssignment. I've got the models.py configured as such:

class AppInstance(NetBoxModel):
...
    contacts = GenericRelation(
        to=ContactAssignment
    )
...

This seems to work without error.

However I cannot seem to get the Contacts tab to appear on the model's view template.

views.py:

class AppInstanceView(generic.ObjectView):
    queryset = models.AppInstance.objects.all()

@register_model_view(models.AppInstance, 'contacts')
class AppInstanceContactsView(ObjectContactsView):
    queryset = models.AppInstance.objects.all()

appinstance.html template:

{% extends 'generic/object.html' %}
{% load render_table from django_tables2 %}

{% block content %}
    ...
{% endblock content %}

And the result of the tabs is:

Any assistance getting the Contacts tab to render on the model view template would be appreciated.

The NetBox version is 3.5.7.

Thanks.

[atownson]

The fix was to include the view in urls.py (originally overlooked):

path('app-instances/<int:pk>/contacts/', views.AppInstanceContactsView.as_view(), name='appinstance_contacts'),