How To Set Additional Options In Order Item – Magento2

In this blog we will see how to copy additional options in order item from quote item.
Check here how to add additional options in cart item.
How To Set Additional Options In Cart Item – Magento2
We have already learned how to set additional option in cart item.
But these options will not be visible in order. To make them visible in order we need to copy them from quote item.
We need to do this when quote converts in order or when quote item converts in order item.
We can do this by Observer or Plugin.

Set Additional Option Using Observer

We can use “sales_model_service_quote_submit_before” event to copy additional option. from quote item.
First of all we need to define it in events.xml. Write following code in events.xml file.

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="sales_model_service_quote_submit_before">
        <observer name="unique_name" instance="Vendor\ModuleName\Observer\OrderItemAdditionalOptions" />
    </event>
</config>

After this create observer file and write following code in file .

<?php
namespace Vendor\ModuleName\Observer;
 
use Magento\Framework\Event\ObserverInterface;
 
class OrderItemAdditionalOptions implements ObserverInterface
{
    /**
     * @param \Magento\Framework\Event\Observer $observer
     */
    public function execute(\Magento\Framework\Event\Observer $observer)
    {
        try {
            $quote = $observer->getQuote();
            $order = $observer->getOrder();
            $quoteItems = [];

            // Map Quote Item with Quote Item Id
            foreach ($quote->getAllVisibleItems() as $quoteItem) {
                $quoteItems[$quoteItem->getId()] = $quoteItem;
            }

            foreach ($order->getAllVisibleItems() as $orderItem) {
                $quoteItemId = $orderItem->getQuoteItemId();
                $quoteItem = $quoteItems[$quoteItemId];
                $additionalOptions = $quoteItem->getOptionByCode('additional_options');

                
                if ($additionalOptions->getValue()) {
                    // Get Order Item's other options
                    $options = $orderItem->getProductOptions();
                    // Set additional options to Order Item
                    $options['additional_options'] = json_decode($additionalOptions->getValue());
                    $orderItem->setProductOptions($options);
                }
            }
        } catch (\Exception $e) {
            // catch error if any
        }
    }
}

Set Additional Option Using Plugin

We can use plugin for method convert in class Magento\Quote\Model\Quote\Item\ToOrderItem.
This method is executed when a quote item converts into order item.

First of all define plugin in di.xml of module.

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Quote\Model\Quote\Item\ToOrderItem">
        <plugin name="unique_name" type="Vendor\ModuleName\Plugin\ToOrderItem" sortOrder="1" />
    </type>
</config>

After that create Plugin file and write following code in file.

<?php
namespace Vendor\ModuleName\Plugin;

use Magento\Quote\Model\Quote\Item\ToOrderItem as QuoteToOrderItem;

class ToOrderItem
{
    /**
     * aroundConvert
     *
     * @param QuoteToOrderItem $subject
     * @param \Closure $proceed
     * @param \Magento\Quote\Model\Quote\Item $item
     * @param array $data
     *
     * @return \Magento\Sales\Model\Order\Item
     */
    public function aroundConvert(
        QuoteToOrderItem $subject,
        \Closure $proceed,
        $item,
        $data = []
    ) {
        // Get Order Item
        $orderItem = $proceed($item, $data);
        // Get Quote Item's additional Options
        $additionalOptions = $item->getOptionByCode('additional_options');

        // Check if there is any additional options in Quote Item
        if ($additionalOptions->getValue()) {
            // Get Order Item's other options
            $options = $orderItem->getProductOptions();
            // Set additional options to Order Item
            $options['additional_options'] = json_decode($additionalOptions->getValue());
            $orderItem->setProductOptions($options);
        }

        return $orderItem;
    }
}

Using these two approach we can copy additional option from quote item to order item.
I hope this blog will help you. 🙂
If you have any doubt or query, comment below.

Thanks