2 from core.models import Controller, ControllerSite, ControllerUser
3 from collections import defaultdict
5 controller_users = ControllerUser.objects.filter(user=user)
6 existing_controllers = [cu.controller for cu in controller_users]
7 all_controllers = Controller.objects.all()
8 for controller in all_controllers:
9 if controller not in existing_controllers:
10 ctrl_user = ControllerUser(controller=controller, user=user)