People Manager

managers.py

from django.db.models import Manager


class ActivePeopleManager(Manager):

    def get_query_set(self):
        return super(ActivePeopleManager, self).get_query_set().filter(is_active=True)

class StaffPeopleManager(ActivePeopleManager):

    def get_query_set(self):
        return super(StaffPeopleManager, self).get_query_set().filter(is_staff=True)

    def has_responsibility(self, responsibility):
        return self.get_query_set().filter(responsibilities__slug=responsibility)