Question 1

How to use django-guardian with Django REST Framework?

Accepted Answer

django-guardian can be integrated by using custom permission classes in DRF that leverage guardian's object permissions. For example, you can subclass DRF's BasePermission and check has_perm on objects in the view, but it requires manual setup as it's not built-in.

Question 2

django-guardian vs django-rules: which one should I choose?

Accepted Answer

Choose django-guardian for per-object permissions tightly integrated with Django admin and ORM, ideal for granular access control. django-rules is better for flexible, rule-based logic without object-level granularity or if you need more complex predicate-based permissions.

Question 3

How to implement object permissions in Django admin with guardian?

Accepted Answer

Replace admin.ModelAdmin with GuardedModelAdmin in your admin.py, as shown in the README. This automatically adds object permission management to the admin interface, allowing you to assign and check permissions on individual instances.

Question 4

Best practices for caching django-guardian permissions?

Accepted Answer

Use Django's caching framework to cache permission results, especially for frequent checks. Implement custom middleware or decorators to store has_perm results in cache, reducing database hits, but be cautious with invalidation on permission changes.

Question 5

How to handle permissions for anonymous users in django-guardian?

Accepted Answer

django-guardian supports anonymous users by default if configured in AUTHENTICATION_BACKENDS. You can assign permissions to anonymous users via assign_perm, but it requires careful handling to avoid security risks, such as limiting access to public objects.

Question 6

Performance issues with django-guardian in large datasets?

Accepted Answer

In large datasets, permission checks can become slow due to database joins. Optimize by limiting permission checks, using select_related or prefetch_related in queries, and considering denormalization or caching strategies to mitigate performance bottlenecks.

django-guardian

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