netbox/netbox/secrets/querysets.py

from __future__ import unicode_literals

from django.db.models import QuerySet


class UserKeyQuerySet(QuerySet):

    def active(self):
        return self.filter(master_key_cipher__isnull=False)

    def delete(self):
        # Disable bulk deletion to avoid accidentally wiping out all copies of the master key.
        raise Exception("Bulk deletion has been disabled.")