CODEWITHSUNDEEP
phpsymfonysylius
Alana Storm
Alana Storm

Reputation: 166106

What Populates the Sylius Resource Metadata Registry?

Short Version: What populates the sylius.resource_registry service with data?

Long Version: Sylius, (a PHP ecommerce framework built using Symfony) uses Symfony's custom route loading system to load some additional routes based on special configuration values. The custom route loader class name is Sylius\Bundle\ResourceBundle\Routing\ResourceLoader.

There's logic in this resource loader that looks for an alias (example value of an alias), and then uses that alias to load metadata from a registry.

$metadata = $this->resourceRegistry->get($configuration['alias']);

This registry is a symfony service with the identifier sylius.resource_registry, configured here.

#File: vendor/sylius/sylius/src/Sylius/Bundle/ResourceBundle/Resources/config/services.xml

<service id="sylius.resource_registry" class="Sylius\Component\Resource\Metadata\Registry" public="false" />

and injected here.

#File: vendor/sylius/sylius/src/Sylius/Bundle/ResourceBundle/Resources/config/services/routing.xml
<service id="sylius.routing.loader.resource" class="Sylius\Bundle\ResourceBundle\Routing\ResourceLoader" public="false">
    <argument type="service" id="sylius.resource_registry" />
    <argument type="service">
        <service class="Sylius\Bundle\ResourceBundle\Routing\RouteFactory" />
    </argument>
    <tag name="routing.loader" />
</service>

However, the Sylius\Component\Resource\Metadata\Registry class has no constructor, so it's not clear what populates the private $metadata array. There are methods named add and addFromAliasAndConfiguration which ~mutate the state~ adds values to the $metadata array, but it's not clear what code calls these methods, and/or what sylius configuration causes those methods to be called.

After chasing this down as far as I have, I'm not sure how deep this rabbit hole goes, so I turn to you Stack Overflow: What populates the sylius.resource_registry service with data?

Upvotes: 1

Views: 644

Answers (1)

Edi Modrić
Edi Modrić

Reputation: 2310

A Symfony compiler pass does it. Specifially: https://github.com/Sylius/Sylius/blob/master/src/Sylius/Bundle/ResourceBundle/DependencyInjection/Compiler/RegisterResourcesPass.php

It loads the configuration from sylius.resources Symfony container parameter and it adds a method call to addFromAliasAndConfiguration to service definition of sylius.resource_registry for every resource it finds in sylius.resources.

Upvotes: 3

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