magento2: Call to undefined method Magento\Bundle\Model\Product\Type::getConfigurableAttributeCollection()

Figured out a the solution for our issue with simple products;

First extend;

Magento\Catalog\Model\Product\Type\Simple

Add function; public function getConfigurableAttributeCollection(\Magento\Catalog\Model\Product $product) { return false; }

Then extend;

Magento\ConfigurableProduct\Helper\Product\Options\Loader

Rewrite the function load() and replace this part;

$attributeCollection = $typeInstance->getConfigurableAttributeCollection($product); $this->extensionAttributesJoinProcessor->process($attributeCollection);

With;

$attributeCollection = $typeInstance->getConfigurableAttributeCollection($product); // this now returns false if this is a simple product

if($attributeCollection) { $this->extensionAttributesJoinProcessor->process($attributeCollection); } else { $attributeCollection = array(); } …

Check your custom modules or extensions and find if you are using either of the following -:

Magento\Catalog\Model\Product (in the constructor)

$this->_product->load($id)

or

$this->_objectManager->get(‘\Magento\Catalog\Model\Product’)->load($id)

If yes then change it to use \Magento\Catalog\Api\ProductRepositoryInterface and load product using getById($id) instead. Hope it helps

The reason for the issue is using a deprecated load method for models. You should use API Repository for loading the products.

To reproduce needs to inject Product model (not factory) to the constructor

I found temporary solution adding simple condition in Magento\ConfigurableProduct\Helper\Product\Options\Loader::load(ProductInterface $product) after line no : 51

if (get_class($typeInstance) == 'Magento\Catalog\Model\Product\Type\Simple' || get_class($typeInstance) == 'Magento\Bundle\Model\Product\Type') 
{
            return null;
}

On production following code works: File: vendor\magento\module-configurable-product\Helper\Product\Options\Loader.php Add below code after line # 51

if (strstr(get_class($typeInstance), 'Magento\Catalog\Model\Product\Type\Simple') !== false || strstr(get_class($typeInstance), 'Magento\Bundle\Model\Product\Type') !== false) {
    return null;
}