/**
* Performed before data is saved
*
* @param Varieb_Object $object
* @return Mage_Eav_Model_Entity_Attribute_Backend_Abstract
*/
public function beforeSave($object)
{
if ($object->getShipment()) {
$object->setParentId($object->getShipment()->getId());
}
return parent::beforeSave($object);
}
