Sometimes you need to override the class Magento\ConfigurableProduct\Helper\Product\Options\Loader.php .
This may be necessary, for example, to fix the Call to undefined method Magento\Catalog\Model\Product\Type\Simple\Interceptor::getConfigurableAttributeCollection() issue. A custom Magento 2 extension is often the best place for this override.
Follow these steps:
Add the following content to the di.xml file in your extension:
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<?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\ConfigurableProduct\Helper\Product\Options\Loader" type="Vendor\Module\ConfigurableProduct\Helper\Product\Options\Loader" /> </config> |
Create the class Loader.php at the following path: Vendor/Module/ConfigurableProduct/Helper/Product/Options/Loader.php
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<?php /** * Copyright © Magento, Inc. All rights reserved. * See COPYING.txt for license details. */ namespace Vendor\Module\ConfigurableProduct\Helper\Product\Options; use Magento\Catalog\Api\Data\ProductInterface; use Magento\ConfigurableProduct\Api\Data\OptionInterface; use Magento\ConfigurableProduct\Model\Product\Type\Configurable; use Magento\ConfigurableProduct\Api\Data\OptionValueInterfaceFactory; use Magento\Framework\Api\ExtensionAttribute\JoinProcessorInterface; /** * Class Loader */ class Loader extends \Magento\ConfigurableProduct\Helper\Product\Options\Loader { /** * @var OptionValueInterfaceFactory */ private $optionValueFactory; /** * @var JoinProcessorInterface */ private $extensionAttributesJoinProcessor; /** * ReadHandler constructor * * @param OptionValueInterfaceFactory $optionValueFactory * @param JoinProcessorInterface $extensionAttributesJoinProcessor */ public function __construct( OptionValueInterfaceFactory $optionValueFactory, JoinProcessorInterface $extensionAttributesJoinProcessor ) { $this->optionValueFactory = $optionValueFactory; $this->extensionAttributesJoinProcessor = $extensionAttributesJoinProcessor; } /** * @param ProductInterface $product * @return OptionInterface[] */ public function load(ProductInterface $product) { $options = []; /** @var Configurable $typeInstance */ $typeInstance = $product->getTypeInstance(); // ###### Loader fix start for: Call to undefined method Magento\Catalog\Model\Product\Type\Simple\Interceptor::getConfigurableAttributeCollection() if (get_class($typeInstance) == 'Magento\Catalog\Model\Product\Type\Simple\Interceptor' || get_class($typeInstance) == 'Magento\Bundle\Model\Product\Type'){ return null; } // ###### Loader fix end $attributeCollection = $typeInstance->getConfigurableAttributeCollection($product); $this->extensionAttributesJoinProcessor->process($attributeCollection); foreach ($attributeCollection as $attribute) { $values = []; $attributeOptions = $attribute->getOptions(); if (is_array($attributeOptions)) { foreach ($attributeOptions as $option) { /** @var \Magento\ConfigurableProduct\Api\Data\OptionValueInterface $value */ $value = $this->optionValueFactory->create(); $value->setValueIndex($option['value_index']); $values[] = $value; } } $attribute->setValues($values); $options[] = $attribute; } return $options; } } |
That’s it.
In this example, the load Funktion was modified to fix the issue Call to undefined method Magento\Catalog\Model\Product\Type\Simple\Interceptor::getConfigurableAttributeCollection() . The following code was added to Loader.php:
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// ###### Loader fix start for: Call to undefined method Magento\Catalog\Model\Product\Type\Simple\Interceptor::getConfigurableAttributeCollection() if (get_class($typeInstance) == 'Magento\Catalog\Model\Product\Type\Simple\Interceptor' || get_class($typeInstance) == 'Magento\Bundle\Model\Product\Type'){ return null; } // ###### Loader fix end |
Overriding Loader.php to fix undefined getConfigurableAttributeCollection() method
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