def save_last_sync(self, ids, process):
        try:
            spec = {'_id': 'last_sync'}
            document = {'$set': {process: ids}}
            self.db.internal.update(spec, document, upsert=True)
        except Exception as e:
            raise DatabaseException(e)
def delete(self, force_drop=False, *args, **kwargs):
        """
        Deletes this row. Drops the tenant's schema if the attribute
        auto_drop_schema set to True.
        """
        self._drop_schema(force_drop)
        super().delete(*args, **kwargs)