$this->altered_name = CRM_Utils_Request::retrieve('alteredName', 'String', CRM_Core_DAO::$_nullObject);
$this->altered_by = CRM_Utils_Request::retrieve('alteredBy', 'String', CRM_Core_DAO::$_nullObject);
$this->altered_by_id = CRM_Utils_Request::retrieve('alteredById', 'Integer', CRM_Core_DAO::$_nullObject);
$this->altered_name = CRM_Utils_Request::retrieve('alteredName', 'String', CRM_Core_DAO::$_nullObject);
$this->altered_by = CRM_Utils_Request::retrieve('alteredBy', 'String', CRM_Core_DAO::$_nullObject);
$this->altered_by_id = CRM_Utils_Request::retrieve('alteredById', 'Integer', CRM_Core_DAO::$_nullObject);