magento 2.3 how to override protected function in custom module

Question

I want to override protected method _prepareProduct present in vendor/magento/module-sitemap/Model/ResourceModel/Catalog/Product.php in my custom module.

I have overridden the Model file by adding preference in di.xml but it's not working.

Still, the default model is working. I have done di:compile and setup upgrade too. There is no error showing.

Please provide a solution to override this.

Thanks!

Answer 1

Your di.xml code will be look like:

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Sitemap\Model\ResourceModel\Catalog\Product" type="{Vendorname}\{Modulename}\Rewrite\Magento\Sitemap\Model\ResourceModel\Catalog\Product"/>
</config>

And Rewrite class code:

<?php
namespace {Vendorname}\{Modulename}\Rewrite\Magento\Sitemap\Model\ResourceModel\Catalog;

class Product extends \Magento\Sitemap\Model\ResourceModel\Catalog\Product
{
    protected function _prepareProduct(array $productRow, $storeId)
    {
    // Do changes at here
        $product = new \Magento\Framework\DataObject();

        $product['id'] = $productRow[$this->getIdFieldName()];
        if (empty($productRow['url'])) {
            $productRow['url'] = 'catalog/product/view/id/' . $product->getId();
        }
        $product->addData($productRow);
        $this->_loadProductImages($product, $storeId);

        return $product;
    }
}