/**
* Calculate refund qty
*
* @param Varien_Object $dataObject
* @param Mage_Sales_Model_Order_Item $orderItem
* @return array [not_ship, shipped, total, had_refunded]
*/
protected function _calculateRefundedQty($dataObject, $orderItem)
{
$creditMemo = $dataObject->getCreditmemoObject();
$order = $dataObject->getOrder();
$parentItemId = $orderItem->getParentItemId();
$refundItem = $creditMemo->getItemByOrderId($orderItem->getId());
$parentItem = $parentItemId ? $creditMemo->getItemByOrderId($parentItemId) : false;
if (is_bool($refundItem)) {
$refundQty = $parentItem ? $parentItem->getQty() : 0;
} else {
$refundQty = $parentItem ? $parentItem->getQty() * $refundItem->getQty() : $refundItem->getQty();
}
$oldCreditmemos = $order->getCreditmemosCollection();
/* total refuned qty before created this creditmemo */
$hadRefundedQty = 0;
if (count($oldCreditmemos)) {
foreach ($oldCreditmemos as $oldCreditmemo) {
if ($oldCreditmemo->getId() == $creditMemo->getId()) {
continue;
}
$item = $oldCreditmemo->getItemByOrderId($orderItem->getId());
if ($item) {
$parentItem = $orderItem->getParentItemId() ? $oldCreditmemo->getItemByOrderId($orderItem->getParentItemId()) : false;
$hadRefundedQty += $parentItem ? $parentItem->getQty() * $item->getQty() : $item->getQty();
}
}
}
/* calculate shipped qty */
$shippedQty = $orderItem->getQtyShipped();
if ($orderItem->getParentItemId()) {
$parentOrderItem = $order->getItemById($orderItem->getParentItemId());
if ($parentOrderItem && $parentOrderItem->getProduct()->getTypeId() == Mage_Catalog_Model_Product_Type::TYPE_CONFIGURABLE) {
$shippedQty = $parentOrderItem->getQtyShipped();
}
}
/* calculate canceled qty */
$canceledQty = $orderItem->getQtyCanceled();
if ($orderItem->getParentItemId()) {
$parentOrderItem = $order->getItemById($orderItem->getParentItemId());
if ($parentOrderItem && $parentOrderItem->getProduct()->getTypeId() == Mage_Catalog_Model_Product_Type::TYPE_CONFIGURABLE) {
$canceledQty = $parentOrderItem->getQtyCanceled();
}
}
/* total qty which we need to ship before created this credit memo */
$needToShipQty = $orderItem->getQtyOrdered() - $shippedQty - $hadRefundedQty - $canceledQty;
$needToShipQty = $needToShipQty >= 0 ? $needToShipQty : 0;
/* separate refund qty to qty of not_ship items & qty of shipped items */
$refundQtys = array('not_ship' => min($refundQty, $needToShipQty), 'shipped' => $refundQty - min($refundQty, $needToShipQty), 'total' => $refundQty, 'had_refunded' => $hadRefundedQty);
return $refundQtys;
}
