def delete(self, doc):
        if doc.id is None:
            raise DatabaseException('Document does not have id')
        if doc.sid is None:
            try:
                rs = self.db.docs.remove({'id': doc.id}, safe=True)
                assert rs['n'] == 1
            except Exception as e:
                raise DatabaseException(e)
            return None
        doc.data = None
        return self.update(doc)
def retire_user(cls, user_id):
        """
        Retire user as part of GDPR Phase I
        Returns 'True' if records found

        :param user_id: int
        :return: bool
        """
        try:
            user_obj = User.objects.get(id=user_id)
        except User.DoesNotExist:
            return False

        photo_objects = cls.objects.filter(
            user=user_obj
        ).update(
            name='',
            face_image_url='',
            photo_id_image_url='',
            photo_id_key=''
        )
        return photo_objects > 0