/**
* Safe way to lookup parent order items.
*
* @param Mage_Sales_Model_Order_Item $item
* @return Mage_Sales_Model_Order_Item
*/
protected function _getOrderItemParent(Mage_Sales_Model_Order_Item $item)
{
if ($item->getParentItem()) {
return $item->getParentItem();
}
$parentItem = Mage::getModel('sales/order_item')->load($item->getParentItemId());
$item->setParentItem($parentItem);
return $parentItem;
}
