How to fix the «Call to a member function getData() on null» error in Smartwave Porto after upgrading Magento to 2.3.1?

dmitrii_fediuk · March 29, 2019, 4:10am

In Magento 2.3.1 the product.info.details block has changed its class from Magento\Catalog\Block\Product\View\Description to Magento\Catalog\Block\Product\View\Details.

Magento 2.3.0

github.com

magento/magento2/blob/2.3.0/app/code/Magento/Catalog/view/frontend/layout/catalog_product_view.xml#L139-L139


<block class="Magento\Catalog\Block\Product\View\Description" name="product.info.details" template="Magento_Catalog::product/view/details.phtml" after="product.info.media">

Magento 2.3.1

github.com

magento/magento2/blob/2.3.1/app/code/Magento/Catalog/view/frontend/layout/catalog_product_view.xml#L139-L139


<block class="Magento\Catalog\Block\Product\View\Details" name="product.info.details" template="Magento_Catalog::product/view/details.phtml" after="product.info.media">

The Magento\Catalog\Block\Product\View\Description class has the getProduct() method:

github.com

magento/magento2/blob/2.3.0/app/code/Magento/Catalog/Block/Product/View/Description.php#L48-L57


/**
 * @return Product
 */
public function getProduct()
{
    if (!$this->_product) {
        $this->_product = $this->_coreRegistry->registry('product');
    }
    return $this->_product;
}

The Magento\Catalog\Block\Product\View\Details class does not have such method.
So any third-party design theme which calls the getProduct() method in the product.info.details block’s template will fail.

How to fix

In the Smartwave Porto’s case you need to patch the file app/design/frontend/Smartwave/porto_child/Magento_Catalog/templates/product/view/details.phtml

Step 1

Replace the line:

$_product = $block->getProduct();

with the following code block:

$_product = \Magento\Framework\App\ObjectManager::getInstance()
	->get(\Magento\Framework\Registry::class)->registry('product');

Step 2

Then replace each $block->getProduct() expression with $_product.

Bhavin_Shah1 · June 6, 2019, 9:24am

Wow. Thanks! You saved my time.

socomsystems · November 18, 2019, 4:51am

Seems I’ve run into this as well, but on Mag 2.3.3 and the latest Porto theme. I’ve patched details.phtml, the page renders however javascript hangs. Note I’m using the child_theme which I believe to be the issue.

$block->getProduct()

grep -R '$block->getProduct()' ../../../../../../ * 
../../../../../../Smartwave/porto/Smartwave_Dailydeals/templates/product/view/addtocart.phtml:<?php $_product = $block->getProduct(); ?>
../../../../../../Smartwave/porto/Magento_Checkout/templates/cart/item/configure/updatecart.phtml:<?php $_product = $block->getProduct(); ?>
../../../../../../Smartwave/porto/WeltPixel_Quickview/templates/product/view/gallery.phtml:$_product = $block->getProduct();
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/details.phtml:    /*    $_product = $block->getProduct(); */
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/prev_next.phtml:        $_product = $block->getProduct();
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/addtocart.phtml:<?php $_product = $block->getProduct(); ?>
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/gallery.phtml:$_product = $block->getProduct();
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/type/default.phtml:<?php $_product = $block->getProduct() ?>
../../../../../../Smartwave/porto/Magento_Catalog/templates/product/view/product_custom.phtml:    $_product = $block->getProduct();
../../../../../../Smartwave/porto/Magento_GroupedProduct/templates/product/view/type/grouped.phtml:<?php $_product = $block->getProduct(); ?>
addtocart.phtml:<?php $_product = $block->getProduct(); ?>
details.phtml:    /*    $_product = $block->getProduct(); */
gallery.phtml:$_product = $block->getProduct();
prev_next.phtml:        $_product = $block->getProduct();
product_custom.phtml:    $_product = $block->getProduct();
type/default.phtml:<?php $_product = $block->getProduct() ?>