How to get Credit Memos items for an order

Question

I want to get all refund items of an order only. I am using below code for this:

$order_id = "100001451";

$creditMemos = Mage::getResourceModel('sales/order_creditmemo_collection');
$creditMemos->addFieldToFilter('order_id', $order_id);
$creditMemos->setOrder('created_at','DESC');
$creditMemos->load();

foreach ($creditMemos->getAllItems() as $item) {
   //var_dump($creditMemo->getData());
    //echo $ceditMemoGrandTotal = $creditMemo->getGrandTotal();
    echo $item->getId();
    echo $item->getSku();
    echo $item->getPrice();
}   

Please help how to get refund items of an order.

Answer 1

Method 1:

If you have order increment id then you will get the creditmemo items by following code:

$orderIncrementId = '200000604';
$order = Mage::getModel('sales/order')->loadByIncrementId($orderIncrementId);

if ($order->hasCreditmemos()) {
    foreach ($order->getCreditmemosCollection() as $creditmemo) {
        echo $creditmemo_id = $creditmemo->getId();
        $creditMemo = Mage::getModel('sales/order_creditmemo')->load($creditmemo_id);
        foreach($creditMemo->getAllItems() as $item){
            echo $item->getId();
            echo $item->getSku();
            echo $item->getName();
        }
    }
}

Method 2:

If you have order id then you will get the creditmemo items by following code:

$orderId = '5';
$order = Mage::getModel('sales/order')->load($orderId);

if ($order->hasCreditmemos()) {
    foreach ($order->getCreditmemosCollection() as $creditmemo) {
        echo $creditmemo_id = $creditmemo->getId();
        $creditMemo = Mage::getModel('sales/order_creditmemo')->load($creditmemo_id);
        foreach($creditMemo->getAllItems() as $item){
            echo $item->getId();
            echo $item->getSku();
            echo $item->getName();
        }
    }
}