2023-05-31-listing-processors.md

title	issue	author	author_email
Listing processors	NEXT-27431	Oliver Skroblin	o.skroblin@shopware.com

Core

• Added \Shopware\Core\Content\Product\SalesChannel\Listing\Processor\AbstractListingProcessor which allows to hook into the request-listing handling
• Added \Shopware\Core\Content\Product\SalesChannel\Listing\Filter\AbstractFilterHandler which allows to generate filters for the listing
• Deprecated \Shopware\Core\Content\Product\SalesChannel\Listing\ProductListingFeaturesSubscriber, which is now replaced by \Shopware\Core\Content\Product\SalesChannel\Listing\Processor\CompositeProcessor

---

Upgrade Information

Deprecation of ProductListingFeaturesSubscriber

With 6.6 the ProductListingFeaturesSubscriber is removed. This is currently responsible for evaluating the listing request parameters and applying them to the criteria.

In the future this will no longer happen via the corresponding events but via the AbstractListingProcessor, which follows a more service oriented approach.

If you dispatch one of the following events yourself, and expect the subscriber to process the corresponding data, you should now call the CompositeProcessor instead:

// before
class MyClass
{
    public function load(Criteria $criteria, SalesChannelContext $context) {
        $this->dispatcher->dispatch(
            new ProductListingCriteriaEvent($criteria, $context, $request)
        );
        
        $result = $this->loadListing($request, $criteria, $context);
        
        $this->dispatcher->dispatch(
            new ProductListingResultEvent($result, $context, $request)
        );
        
        return $result;
    }
}

// after
class MyClass
{
    public function __construct(private readonly CompositeProcessor $listingProcessor) {}
    
    public function load(Criteria $criteria, SalesChannelContext $context) 
    {
        $this->listingProcessor->prepare($request, $criteria, $context);
        
        $result = $this->loadListing($request, $criteria, $context);
        
        $this->listingProcessor->process($request, $result, $context);
        
        return $result;
    }
}

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Next Major Version Changes

• Removed \Shopware\Core\Content\Product\SalesChannel\Listing\ProductListingFeaturesSubscriber, use CompositeProcessor instead