Role-Based Access Control (RBAC) is a method of restricting system access based on user roles. Django’s built-in permission system works in conjunction with RBAC to ensure that only users with the appropriate permissions can access specific parts of the application.

Implementing RBAC

You can implement RBAC by grouping users into roles (e.g., Admin, Editor, Viewer) and assigning them specific permissions.

Example: Role-Based Views

Use Django’s permission decorators to limit access to certain views based on roles:

from django.contrib.auth.decorators import permission_required

@permission_required('book.can_publish', raise_exception=True)
def publish_book(request, book_id):
    book = Book.objects.get(id=book_id)
    book.publish()
    return redirect('book-list')

Permission Decorators

Django provides decorators like @permission_required, @login_required, and @user_passes_test to manage access control.

Example of using @user_passes_test for RBAC:

from django.contrib.auth.decorators import user_passes_test

def is_editor(user):
    return user.groups.filter(name='Editors').exists()

@user_passes_test(is_editor)
def edit_book(request, book_id):
    book = Book.objects.get(id=book_id)
    return render(request, 'edit_book.html', {'book': book})