def update_modified_by_fields
self.created_at ||= Time.now
- self.owner_uuid ||= current_default_owner
+ self.owner_uuid ||= current_default_owner if self.respond_to? :owner_uuid=
self.modified_at = Time.now
self.modified_by_user_uuid = current_user ? current_user.uuid : nil
self.modified_by_client_uuid = current_api_client ? current_api_client.uuid : nil