Editing quantity from pimcore order details page updates order total …

…and order item total

Issue : https://github.com/pimcore/pimcore/issues/6852
Editing quantity from pimcore order details page it is not updating order item total and order total so using this we can update order on chaning qunitiy,

bundles/EcommerceFrameworkBundle/OrderManager/Order/Agent.php

@@ -175,24 +175,54 @@ public function itemChangeAmount(OrderItem $item, $amount)
     }
 
     /**
-     * start item complaint
+     * change order item
      *
      * @param OrderItem $item
-     * @param float     $quantity
+     * @param float $amount
      *
      * @return Note
      */
-    public function itemComplaint(OrderItem $item, $quantity)
+    public function itemChangeAmount(OrderItem $item, $amount)
     {
+        // init
+
+        $amount = floatval($amount);
+
         // add log note
         $note = $this->createNote($item);
         $note->setTitle(__FUNCTION__);
-        $note->addData('quantity', 'text', $quantity);
-
+        $oldAmount = $item->getAmount();
+        $note->addData('amount.old', 'text', $oldAmount);
+        $note->addData('amount.new', 'text', $amount);
+        $oldTotalPrice = $item->getTotalPrice();
+        $unitPrice = $oldTotalPrice/$oldAmount;
+        $newTotalPrice =$unitPrice*$amount;
+        // change
+        $item->setAmount($amount);
+        $item->setTotalPrice( $newTotalPrice);
         // save
+        $item->save();
         $note->save();
-
+        $this->updateOrder($item,$oldTotalPrice,$newTotalPrice);
         return $note;
+
+    }
+
+
+    public function updateOrder($item,$oldTotalPrice,$newTotalPrice)
+    {  
+
+        $order = $item->getParent();
+        $subTotalNetPrice = $order->getSubTotalNetPrice();
+        $subTotalPrice = $order->getSubTotalPrice();
+        $totalNetPrice = $order->getTotalNetPrice();
+        $totalPrice = $order->getTotalPrice();
+        $replacedvalue  = $newTotalPrice -$oldTotalPrice;
+        $order->setSubTotalNetPrice($subTotalNetPrice +$replacedvalue);
+        $order->setSubTotalPrice($subTotalPrice+$replacedvalue);
+        $order->setTotalNetPrice($totalNetPrice+$replacedvalue);
+        $order->setTotalPrice($totalPrice+$replacedvalue);
+        $order->save();
     }
 
     /**