def get(self, object_type, object_id):
        """List all tags a given object has."""
        if object_id == 0:
            return json_success(json.dumps([]))

        query = db.session.query(TaggedObject).filter(and_(
            TaggedObject.object_type == object_type,
            TaggedObject.object_id == object_id))
        tags = [{'id': obj.tag.id, 'name': obj.tag.name} for obj in query]
        return json_success(json.dumps(tags))
List all tags a given object has.