Can't get django-filter to use the queryset from MyModel.another_name_for_objects

[bmbouter]

We're making our querysets restrict results to just the objects that user has permissions for. We changed the default manager the model uses like these docs suggest. The issue is though, there is no user at startup time when django-filter ends up having its filter_for_field method called.

I've tried to use:

    def filter_queryset(self, queryset):
        breakpoint()  # or `raise Exception('I failed')` here instead
        return self.super().filter_queryset(queryset)

So basically for fields that refer to MyModel:

class MyModel():
    <fields>
    objects = UserAwareManager()
    another_name_for_objects = model.Manager()  #  <--  This is the default manager

What I need is for django-filter to use MyModel.another_name_for_objects instead of MyModel.objects. Here's the traceback I get:

Traceback (most recent call last):
  File "/usr/local/lib/pulp/bin/pulpcore-manager", line 33, in <module>
    sys.exit(load_entry_point('pulpcore', 'console_scripts', 'pulpcore-manager')())
  File "/home/vagrant/devel/pulpcore/pulpcore/app/manage.py", line 11, in manage
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/django/core/management/__init__.py", line 395, in execute
    django.setup()
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/django/apps/registry.py", line 122, in populate
    app_config.ready()
  File "/home/vagrant/devel/pulpcore/pulpcore/app/apps.py", line 191, in ready
    super().ready()
  File "/home/vagrant/devel/pulpcore/pulpcore/app/apps.py", line 96, in ready
    self.import_viewsets()
  File "/home/vagrant/devel/pulpcore/pulpcore/app/apps.py", line 129, in import_viewsets
    from pulpcore.app.viewsets import NamedModelViewSet
  File "/home/vagrant/devel/pulpcore/pulpcore/app/viewsets/__init__.py", line 65, in <module>
    from .task import TaskViewSet, TaskGroupViewSet, WorkerViewSet  # noqa
  File "/home/vagrant/devel/pulpcore/pulpcore/app/viewsets/task.py", line 30, in <module>
    class TaskFilter(BaseFilterSet):
  File "/home/vagrant/devel/django-filter/django_filters/filterset.py", line 71, in __new__
    new_class.base_filters = new_class.get_filters()
  File "/home/vagrant/devel/django-filter/django_filters/filterset.py", line 351, in get_filters
    filters[filter_name] = cls.filter_for_field(field, field_name, lookup_expr)
  File "/home/vagrant/devel/pulpcore/pulpcore/app/viewsets/base.py", line 546, in filter_for_field
    f = super().filter_for_field(field, name, lookup_expr)
  File "/home/vagrant/devel/django-filter/django_filters/filterset.py", line 372, in filter_for_field
    field, lookup_type = resolve_field(field, lookup_expr)
  File "/home/vagrant/devel/django-filter/django_filters/utils.py", line 196, in resolve_field
    query = model_field.model._default_manager.all().query
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/django/db/models/manager.py", line 156, in all
    return self.get_queryset()
  File "/home/vagrant/devel/pulpcore/pulpcore/app/models/task.py", line 155, in get_queryset
    return get_objects_for_user(current_user, "core.view_task", klass=qs)
  File "/usr/local/lib/pulp/lib64/python3.9/site-packages/guardian/shortcuts.py", line 542, in get_objects_for_user
    if with_superuser and user.is_superuser:
AttributeError: 'NoneType' object has no attribute 'is_superuser'

Any ideas on what I should do here? Thanks in advance!