code: def get_admin_urls_for_registration(self):
          
          urls = super(OrderModelAdmin, self).get_admin_urls_for_registration()
          urls = urls + (
              url(self.url_helper.get_action_url_pattern('detail'),
                  self.detail_view,
                  name=self.url_helper.get_action_url_name('detail')),
          )
          return urls
docs: Utilised by Wagtail's 'register_admin_urls' hook to register urls for
          our the views that class offers.