Override default queryset in Django admin

Question

One of my models has a deleted flag, which is used to hide objects globally:

class NondeletedManager(models.Manager):
    \"\"\"Returns only objects which ha         


        

Answer 1

Natan Yellin is correct, but you can change the managers order and the first will be the default, then it is the used by the admin:

class Conversation(BaseModel):
    ...
    deleted = models.BooleanField(default=False)

    all_conversations = models.Manager() # includes deleted conversations
    objects = NondeletedManager()

The admin implementation of get_queryset() use ._default_manager instead .objects, as show next

qs = self.model._default_manager.get_queryset()

ref Django github BaseModelAdmin implementation

This only ensures that every time you use YourModel.objects, you will not include deleted objects, but the generic views and others uses ._default_manager too. Then if you don't override get_queryset is not a solution. I've just check on a ListView and admin.