3

I'm working on a custom module for magento2. Trying to override the product view block so I can fetch data from an API and pass it into the view. Having read

  1. https://community.magento.com/t5/Programming-Questions/Overriding-a-block-in-Magento-2/m-p/6831#U6831
  2. Magento 2: Override Magento\Catalog\Block\Product\View Block
  3. DI & Extending a Block on Magento 2

I'm still unsuccessful... Here's what I have in my module (Moxune/Moxune):

Block/Product/View.php

<?php
namespace Moxune\Moxune\Block\Product;

use Magento\Framework\View\Element\Template;
use Magento\Catalog\Api\ProductRepositoryInterface;
use Magento\Catalog\Model\Product;
class View extends \Magento\Catalog\Block\Product\View
{
    protected function _toHtml()
    {
        $this->setModuleName($this->extractModuleName('Magento\Catalog\Block\Product\View'));
        return parent::_toHtml();
    }
}

etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <preference for="Magento\Catalog\Block\Product\View" type="Moxune\Moxune\Block\Product\View" />
</config>

I then run

rm -rf var/cache var/di var/generation var/page_cache && ./bin/magento setup:di:compile

and navigate to a product detail page. I can tell the overridden block isn't getting called though, because I've changed the _toHtml() body to:

protected function _toHtml()
{
   die('wtf');
}

and also introduced syntax errors and the page continues to load fine. However, if I put a die statement in the _toHtml() of

var/generation/Magento/Catalog/Block/Product/View/Interceptor.php

that shows on the product detail page. So it seems the preference I'm configuring is having no effect?

FWIW - It seems the DI process is creating a new Interceptor based on the configured preference:

var/generation/Moxune/Moxune/Block/Product/View/Interceptor.php

What am I missing?

5
  • What do you get when you call get_class($block); in your product view template ? Jul 2, 2016 at 8:06
  • Which template file should I be looking at, seems like there's several. I'm looking in the ./vendor/magento/module-catalog/view/frontend/templates/product/view directory. Added a get_class($block) in the details.phtml file and get Magento\Catalog\Block\Product\View\Description Jul 2, 2016 at 20:48
  • try the view/frontend/templates/product/view.phtml Jul 2, 2016 at 22:09
  • Haven't tracked it down yet, but feels like something isn't right w/ the DI generation process. The preferences configuration has Magento\Catalog\Block\Product\View => Magento\Catalog\Block\Product\View\Interceptor for some reason. Jul 2, 2016 at 22:26
  • I don't have a view.phtml file, all that's in the view/frontend/templates/product directory is compare gallery.phtml image.phtml image_with_borders.phtml list listing.phtml list.phtml view widget, inside the view directory are additional.phtml addto.phtml attributes.phtml details.phtml gallery.phtml opengraph options.phtml review.phtml addtocart.phtml attribute.phtml description.phtml form.phtml mailto.phtml options price_clone.phtml type Jul 2, 2016 at 22:54

1 Answer 1

2

So I got something working... I discovered the DI configuration was mapping Magento\Catalog\Block\Product\View to Magento\Catalog\Block\Product\View\Interceptor which is not the generated interceptor I was expecting (Moxune\Moxune\Block\Product\View\Interceptor).

I'm not sure exactly why, but my Magento installation (v2.0.4) does not have a view/frontend/templates/product/view.phtml file, so my guess is the block I was trying to override isn't being used. I did find several other (seemingly more granular) template files and decided to shoot for a block that might correspond to one of those.

That said, I've

  1. Changed my module's di.xml file to

    <?xml version="1.0"?>
    <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <preference for="Magento\Catalog\Block\Product\View\Description"
            type="Moxune\Moxune\Block\Product\View\Description" />
    </config>
    
  2. Created the corresponding class

    namespace  Moxune\Moxune\Block\Product\View;
    
    use Magento\Framework\View\Element\Template;
    use Magento\Catalog\Api\ProductRepositoryInterface;
    use Magento\Catalog\Model\Product;
    
    class Description extends \Magento\Catalog\Block\Product\View\Description {
        protected function _toHtml() {   
            $this->setModuleName($this->extractModuleName('Magento\Catalog\Block\Product\View\Description'));
            return parent::_toHtml();
        }   
    }
    
  3. Recompiled the DI configuration

    rm -rf var/cache var/di var/generation var/page_cache ; ./bin/magento setup:di:compile
    

Now I seem to be getting into the _toHtml method of my overridden class!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.