from rules.permissions import ObjectPermissionBackend
from rowers.models import User

class MyObjectPermissionBackend(ObjectPermissionBackend):
    def user_can_authenticate(self, user):
        return getattr(user, "is_active", True)
        
    def get_user(self, user_id):
        try:
            user = User.objects.get(pk=user_id)
        except User.DoesNotExist:
            return None
        return user if self.user_can_authenticate(user) else None