fix: double namespace

[altimore]

Description

When using namespaces on my apps and rest framework generic relation https://github.com/LilyFoote/rest-framework-generic-relations project with the i get a double name space : in relations.py i added this print statement on the line 383 before the matching viewname test

print(
    f"Comparing '{match.view_name}' to '{expected_viewname}', self.view_name = {self.view_name} "
)

and this is what i get in the console

Comparing invoices:invoice-detail to reminders:invoices:invoice-detail, self.view_name = invoices:invoice-detail 

solution

so i just added a test in def get_versioned_viewname(self, viewname, request): to not change the view name if there is already a namespace.

alternative

we could take out the existing namespace to replace it with the required one or we could make a more precise error message to explain how to bypass this behavior.

My use case required the reminder namespace to not be added.

[auvipy]

if possible, can you please also check this PR https://github.com/encode/django-rest-framework/pull/7278

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lovelydinosaur]

https://docs.djangoproject.com/en/5.0/topics/http/urls/#url-namespaces

Namespaces can also be nested. The named URL 'sports:polls:index' would look for ...