RightsSetter::getParentRights

private function getParentRights()
{
	if($this->parentRights !== null)
	{
		return $this->parentRights;
	}
	$this->parentRights = Driver::getInstance()->getRightsManager()->getParentsRights($this->object->getId());
	Collection::sortByColumn($this->parentRights, array('DEPTH_LEVEL' => SORT_DESC));

	return $this->parentRights;
}