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A Symfony Bundle for Fractal by League. Implements dependency injection into your transformers

4.0.0 2020-06-19 12:31 UTC

This package is auto-updated.

Last update: 2021-09-19 14:59:25 UTC


This bundle provides integration of league/fractal for Symfony. In addition it allows you to use transformers as a services.

Getting Started

First of all you need to add dependency to composer.json:

composer require samj/fractal-bundle

Then register bundle in app/AppKernel.php:

public function registerBundles()
    return [
        // ...
        new SamJ\FractalBundle\SamJFractalBundle(),

Now we can write and use fractal transformers:

Using Transformers as Services

There are several cases when you need to pass some dependencies into transformer. The common one is role/scope based results in transformers. For example you need to show email field only for administrators or owner of user profile:

class UserTransformer extends TransformerAbstract
    private $authorizationCheker;
    public function __construct(AuthorizationChecker $authorizationCheker)
        $this->authorizationCheker = $authorizationCheker;
    public function transform(User $user)
        $data = [
            'id' => $user->id(),
            'name' => $user->name(),
        if ($this->authorizationChecker->isGranted(UserVoter::SEE_EMAIL, $user)) {
            $data['email'] = $user->email();
        return $data;

Then you could just register this class as service, and pass service ID as transformer. This bundle then will try to get it from container:

$resource = new Collection($users, 'app.transformer.user');

This works in includes as well:

public function includeFriends(User $user)
    return $this->collection($user->friends(), 'app.transformer.user');

You could see example of how to use transformers in sample application which is used in test suites.