/**
* Set correct item prices ((original price / new qty) * old qty)
*
* @param Mage_Sales_Model_Order_Item $orderItem
* @param int $oldQty
* @param int $newQty
* @return Mage_Sales_Model_Order_Item
*/
protected function _correctPrices($orderItem, $oldQty, $newQty)
{
$orderItem->setPrice($orderItem->getPrice() / $newQty * $oldQty);
$orderItem->setBasePrice($orderItem->getBasePrice() / $newQty * $oldQty);
$orderItem->setOriginalPrice($orderItem->getOriginalPrice() / $newQty * $oldQty);
$orderItem->setBaseOriginalPrice($orderItem->getBaseOriginalPrice() / $newQty * $oldQty);
$orderItem->setPriceInclTax($orderItem->getPriceInclTax() / $newQty * $oldQty);
$orderItem->setBasePriceInclTax($orderItem->getBasePriceInclTax() / $newQty * $oldQty);
return $orderItem;
}
