how to exclude non-active users from queryset in django

Question

I want to exclude non-active users from my project.

example 1:
  url:users/1/friends/ will show all friends of that user.

I want to show only a

Answer 1

You can use Creating a manager with QuerySet methods

can be used to create an instance of Manager with a copy of a custom QuerySet’s methods

class UserQuerySet(models.QuerySet):
    def active(self):
        return self.filter(is_active=True)

class User(models.Model):
    is_active = models.BooleanField(default=true)

    objects = UserQuerySet.as_manager()

And use it simply like this

User.objects.active()

For custom users (AbstractUser) you need this solution
It is based on this answer

from django.db.models import QuerySet
from django.contrib.auth.models import AbstractUser, UserManager


class UserQuerySetManager(UserManager):
    def __getattr__(self, attr, *args):
        try:
            return getattr(self.__class__, attr, *args)
        except AttributeError:
            # don't delegate internal methods to the queryset
            if attr.startswith('__') and attr.endswith('__'):
                raise
            return getattr(self.get_query_set(), attr, *args)

    def get_query_set(self):
        return self.model.QuerySet(self.model, using=self._db)


class User(AbstractUser):
    objects = UserQuerySetManager()


    class Meta:
        permissions = (
            ('view_all_managers', 'View All Managers'),
        )

    class QuerySet(QuerySet):
        def active(self):
            return self.filter(is_active=True)

Answer 2

If you want to exclude non-active users from a queryset you can use the following filter:

YourModel.objects.exclude(friend__is_active=False)

# or 
YourModel.objects.filter(friend__is_active=True)

Where friend is a ForeignKeyField to a User model object in YourModel.

If you want a more general solution, you can use a ModelManager:

class ActiveUsersOnlyManager(models.Manager):
    def get_queryset(self):
        return super(ActiveUsersOnlyManager, self).get_queryset().filter(is_active=True)


class User(models.Model):
    is_active = models.BooleanField(default=true)
    friends = models.ForeignKey(User)
    # first manager is the default and accessible through objects.
    objects = ActiveUsersManager()

Answer 3

You should use a custom Model Manager:

class ActiveUsersManager(models.Manager):
    use_for_related_fields = True

    def get_queryset(self):
        return super(ActiveUserManager, self).get_queryset().filter(is_active=True)


class User(models.Model):
    is_active = models.BooleanField(default=true)

    # first manager is the default and accessible through objects.
    active = ActiveUsersManager()
    all_users = models.Manager()

active_users = User.objects.all()    
all_users = User.all_users.all()