Bugfix for refund bundle items

Author: eneiasramos

app/code/core/Mage/Sales/Model/Order/Creditmemo.php

@@ -988,6 +988,11 @@ public function getFilteredCollectionItems($filter = null)
     public function isLast()
     {
         foreach ($this->getAllItems() as $item) {
+            $orderItem = $item->getOrderItem();
+            if ($orderItem->isDummy()) {
+                continue;
+            }
+
             if (!$item->isLast()) {
                 return false;
             }

app/code/core/Mage/Sales/Model/Order/Creditmemo/Total/Subtotal.php

@@ -32,6 +32,8 @@ public function collect(Mage_Sales_Model_Order_Creditmemo $creditmemo)
         $subtotalInclTax = 0;
         $baseSubtotalInclTax = 0;
 
+        $order = $creditmemo->getOrder();
+
         foreach ($creditmemo->getAllItems() as $item) {
             if ($item->getOrderItem()->isDummy()) {
                 continue;
@@ -41,8 +43,19 @@ public function collect(Mage_Sales_Model_Order_Creditmemo $creditmemo)
 
             $subtotal       += $item->getRowTotal();
             $baseSubtotal   += $item->getBaseRowTotal();
-            $subtotalInclTax += $item->getRowTotalInclTax();
-            $baseSubtotalInclTax += $item->getBaseRowTotalInclTax();
+            $subtotalInclTax += $item->getRowTotalInclTax() + $item->getWeeeTaxAppliedRowAmount();
+            $baseSubtotalInclTax += $item->getBaseRowTotalInclTax() + $item->getBaseWeeeTaxAppliedRowAmount();
+        }
+
+        $allowedSubtotal = $order->getSubtotal() - $order->getSubtotalRefunded();
+        $baseAllowedSubtotal = $order->getBaseSubtotal() - $order->getBaseSubtotalRefunded();
+
+        if ($creditmemo->isLast()) {
+            $subtotal = $allowedSubtotal;
+            $baseSubtotal = $baseAllowedSubtotal;
+        } else {
+            $subtotal = min($allowedSubtotal, $subtotal);
+            $baseSubtotal = min($baseAllowedSubtotal, $baseSubtotal);
         }
 
         $creditmemo->setSubtotal($subtotal);

app/code/core/Mage/Sales/etc/config.xml

@@ -785,6 +785,8 @@
                 </row_weight>
                 <row_total>
                     <to_quote_item>*</to_quote_item>
+                    <to_invoice_item>*</to_invoice_item>
+                    <to_cm_item>*</to_cm_item>
                 </row_total>
                 <applied_rule_ids>
                     <to_quote_item>*</to_quote_item>
@@ -797,6 +799,8 @@
                 </base_tax_amount>
                 <base_row_total>
                     <to_quote_item>*</to_quote_item>
+                    <to_invoice_item>*</to_invoice_item>
+                    <to_cm_item>*</to_cm_item>
                 </base_row_total>
                 <base_price>
                     <to_invoice_item>base_price</to_invoice_item>