How to Convert Custom Field From Quote Item to Order Item in Magento 2

Usually, when customers add an item to the cart, it will be stored into the quote object. Sometimes, you will want to pass the cart value in the quote as an order object for easier access to the value. To do that, you need to convert your custom field from the quote to the order.

Therefore, in today’s post, we will learn about the way to convert custom field from quote item to order item in Magento 2. Follow the instruction below to successfully get the work done.

Overview of converting a custom feild from quote item to order item in Magento 2

Step 1: Add a di.xml file

In the module app/code/Mageplaza/HelloWorld/etc, please add the di.xml file.

Step 2: Identify a code, a plugin

In the di.xml file, let’s identify a code:

<type name="Magento\Quote\Model\Quote\Item\ToOrderItem">
        <plugin name="HelloWorld_to_order_item" type="Mageplaza\HelloWorld\Model\Plugin\Quote\HelloWorldToOrderItem"/>
</type>

Then, identify a plugin Mageplaza\HelloWorld\Model\Plugin\Quote\HelloWorldToOrderItem” of class “Magento\Quote\Model\Quote\Item\ToOrderItem

Step 3: Add a class to your module, then identify a function

  • In the module, add the class Mageplaza\HelloWorld\Model\Plugin\Quote\HelloWorldToOrderItem, and identify the function aroundConvert which will convert the custom data from quote item to order item at the same time.
public function aroundConvert(
        \Magento\Quote\Model\Quote\Item\ToOrderItem $subject,
        \Closure $proceed,
        \Magento\Quote\Model\Quote\Item\AbstractItem $item,
        $additional = []
    ) {
        /** @var $orderItem Item */
        $orderItem = $proceed($item, $additional);
$orderItem->setHelloWorldCustomData($item->getHelloWorldCustomData());
        return $orderItem;
    }
  • You will achieve the result of function convert in class Magento\Quote\Model\Quote\Item\ToOrderITem from the first line of this function $orderItem = $proceed($item, $additional);.

  • Next, create the value of HelloWorldCustomData for the result of function convert class Magento\Quote\Model\Quote\Item\ToOrderItem.

  • Then, return an object $orderItem to recover result of the function convert in the class Magento\Quote\Model\Quote\Item\ToOrderItem.

Final words

That is all requirements every Magento 2 store owners should apply to copy custom data from quote item to order item. If you have any issues while following this tutorial, don’t hesitate to contact us. Thanks for reading!

Image Description
With over a decade of experience crafting innovative tech solutions for ecommerce businesses built on Magento, Jacker is the mastermind behind our secure and well-functioned extensions. With his expertise in building user-friendly interfaces and robust back-end systems, Mageplaza was able to deliver exceptional Magento solutions and services for over 122K+ customers around the world.

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