Register Twig namespace for Symfony 7.3+/8.0 compatibility

[Copilot]

• Explore repository structure and understand the issue
• Create DependencyInjection directory
• Create GraphpinatorExtension class to register Twig namespace
• Update GraphpinatorBundle to use the new extension
• Create tests for GraphpinatorExtension and GraphpinatorBundle
• Verify path resolution is correct
• Run code review and address feedback (extension property is inherited from parent Bundle class)
• Verify implementation follows Symfony best practices
• Add #[\Override] attributes to all overridden methods
• Enhance test to verify directory exists
• All changes minimal and focused on the fix

Summary

Addressed code review feedback:

• Added #[\Override] attributes to all overridden methods in GraphpinatorExtension (load, prepend, getAlias)
• Added #[\Override] attributes to all overridden methods in GraphpinatorBundle (getPath, getContainerExtension)
• Enhanced GraphpinatorExtensionTest to verify the configured path actually exists as a directory

The implementation successfully addresses the Twig namespace registration issue for Symfony 7.3+/8.0.

Original prompt

Problem

After updating Symfony dependencies to version 7.3+/8.0, the bundle throws an error:

There are no registered paths for namespace "Graphpinator".

The Twig templates located in src/Resources/views/ are not being found when using @Graphpinator/ui.html.twig and @Graphpinator/schema.html.twig in the GraphQLController.

Root Cause

In Symfony 7.1+, the behavior of AbstractBundle changed. The framework no longer automatically registers Resources/views as a Twig namespace. Bundle developers must now explicitly register Twig namespaces through a Container Extension.

Solution

Create a GraphpinatorExtension class that implements PrependExtensionInterface to register the Twig namespace for the bundle templates, and update GraphpinatorBundle to use this extension.

Files to Create

File: src/DependencyInjection/GraphpinatorExtension.php

<?php

declare(strict_types = 1);

namespace Graphpinator\Symfony\DependencyInjection;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\Extension;
use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;

final class GraphpinatorExtension extends Extension implements PrependExtensionInterface
{
    public function load(array $configs, ContainerBuilder $container): void
    {
        // Load services if needed in future
    }

    public function prepend(ContainerBuilder $container): void
    {
        // Register Twig namespace for bundle templates
        $container->prependExtensionConfig('twig', [
            'paths' => [
                \dirname(__DIR__) . '/Resources/views' => 'Graphpinator',
            ],
        ]);
    }

    public function getAlias(): string
    {
        return 'graphpinator';
    }
}

Files to Update

File: src/GraphpinatorBundle.php

Update the bundle to return the custom extension and define the bundle path:

<?php

declare(strict_types = 1);

namespace Graphpinator\Symfony;

use Graphpinator\Symfony\DependencyInjection\GraphpinatorExtension;
use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
use Symfony\Component\HttpKernel\Bundle\AbstractBundle;

final class GraphpinatorBundle extends AbstractBundle
{
    public function getPath(): string
    {
        return \dirname(__DIR__);
    }

    public function getContainerExtension(): ?ExtensionInterface
    {
        if (null === $this->extension) {
            $this->extension = new GraphpinatorExtension();
        }

        return $this->extension;
    }
}

Expected Outcome

After these changes:

• The Twig namespace @Graphpinator will be properly registered
• Templates in src/Resources/views/ will be accessible via @Graphpinator/ui.html.twig and @Graphpinator/schema.html.twig
• The bundle will work "out of the box" with Symfony 7.3+ and 8.0
• No breaking changes for existing users

Testing

Verify that:

1. The /ui route renders correctly using @Graphpinator/ui.html.twig
2. The /schema route renders correctly using @Graphpinator/schema.html.twig
3. No Twig namespace errors occur
4. The bundle remains compatible with both Symfony 7.3 and 8.0

This pull request was created from Copilot chat.

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