Register additional tab to plugin model

[Kani999]

Hello,

i'm trying to register additional tab ( https://docs.netbox.dev/en/stable/plugins/development/views/#additional-tabs ) to my plugin model.

Examples:

• Plugin model Contract

@register_model_view(Contract, 'consoleports', path='console-ports')
class ContractConsolePortsView(DeviceComponentsView):
    child_model = ConsolePort
    table = DeviceConsolePortTable
    filterset = ConsolePortFilterSet
    template_name = 'dcim/device/consoleports.html',
    tab = ViewTab(
        label=('Console Ports'),
        badge=0,
        weight=550,
        hide_if_empty=True
    )

But the tab does not render on the object page.
The registry seems fine

ipdb> from pprint import pprint
ipdb> pprint(registry['views']['inventory_monitor']['contract'])
[{'kwargs': {'model': <class 'inventory_monitor.models.Contract'>},
  'name': 'journal',
  'path': 'journal',
  'view': 'netbox.views.generic.ObjectJournalView'},
 {'kwargs': {'model': <class 'inventory_monitor.models.Contract'>},
  'name': 'changelog',
  'path': 'changelog',
  'view': 'netbox.views.generic.ObjectChangeLogView'},
 {'kwargs': {},
  'name': 'contract-attachment_list',
  'path': 'contract-attachment_list',
  'view': <class 'netbox_attachments.template_content.create_tab_view.<locals>.View'>},
 {'kwargs': {},
  'name': '',
  'path': '',
  'view': <class 'inventory_monitor.views.ContractView'>},
 {'kwargs': {},
  'name': 'consoleports',
  'path': 'console-ports',
  'view': <class 'inventory_monitor.views.ContractConsolePortsView'>}]

The only tab which is displayed is Changelog

Registering tabs to "Core" models, like "Device" works fine.

Are there some caveats, that I cannot add tabs to my plugin?
Or should I add something to my models, views, etc?

---

I create a discussion on slack, where I tried several things.
https://netdev-community.slack.com/archives/C03Q7A8C0TS/p1675324918322649

[AcidSailor]

I didn't check the slack discussion, but eventually came up with the solution, so posting it here:

1. You should use this in urls.py for your custom plugin (basically, get_model_urls seems to load all urls from registry)

include(get_model_urls(<app_label>, <model_name>)))

For example, how it's done in core models:

netbox/netbox/dcim/urls.py

Line 191 in 0e34fba

path('devices/<int:pk>/', include(get_model_urls('dcim', 'device'))),

2. Or you also can do it "manually", for me it was:
views.py

@register_model_view(
    models.ProviderService,
    name="contacts",
)
class ProviderServiceContactsView(ObjectContactsView):
    queryset = models.ProviderService.objects.all()

urls.py

urlpatterns = (
    path("provider-services/<int:pk>/",
         views.ProviderServiceView.as_view(), name="providerservice"),
    path("provider-services/<int:pk>/edit/", views.ProviderServiceEditView.as_view(),
         name="providerservice_edit"),
    path("provider-services/<int:pk>/delete/", views.ProviderServiceDeleteView.as_view(),
         name="providerservice_delete"),
    path("provider-services/<int:pk>/changelog/", ObjectChangeLogView.as_view(),
         kwargs={"model": models.ProviderService}, name="providerservice_changelog"),

    # Without this line, custom tab was not working:
    path("provider-services/<int:pk>/contacts/", views.ProviderServiceContactsView.as_view(),
         name="providerservice_contacts"),
)