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Qandidate Toggle Symfony Bundle

This Bundle provides the integration with our toggle library. It provides the services and configuration you need to implement feature toggles in your application.

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About

Read the our blog post series about this repository at:

Installation

Using Symfony Flex

The easiest way to install and configure the QandidateToggleBundle with Symfony is by using Symfony Flex.

Make sure you have Symfony Flex installed:

$ composer require symfony/flex ^1.0
$ composer config extra.symfony.allow-contrib true

Install the bundle:

$ composer require qandidate/toggle-bundle ^1.0

Symfony Flex will automatically register and configure the bundle.

Manually

Add the bundle to your composer.json

$ composer require qandidate/toggle-bundle ^1.0

Add the bundle to your Kernel:

$bundles = array(
    // ..
    new Symfony\Bundle\SecurityBundle\SecurityBundle(),
    new Symfony\Bundle\TwigBundle\TwigBundle(),
    new Qandidate\Bundle\ToggleBundle\QandidateToggleBundle(),
);

Configuration

qandidate_toggle:
    persistence: in_memory|redis|factory|config
    context_factory: null|your.context_factory.service.id
    redis_namespace: toggle_%kernel.environment% # default, only required when persistence = redis
    redis_client: null|your.redis_client.service.id # only required when persistence = redis
    collection_factory: # only required when persistence = factory
        service_id: your.collection_factory.service.id
        method: create

Sample Configuration for Symfony

qandidate_toggle:
    persistence: config
    toggles:
      always-active-feature:
        name: always-active-feature
        status: always-active
      inactive-feature:
        name: inactive-feature
        status: inactive
        conditions: 
      conditionally-active:
        name: conditionally-active
        status: conditionally-active
        conditions:
         - name: operator-condition
           key: user_id
           operator:
               name: greater-than
               value: 42

Example usage

Usage can vary on your application. This example uses the supplied UserContextFactory, but you probably need to create your own factory.

<!-- services.xml -->

<service id="acme.controller" class="Acme\Controller">
    <argument type="service" id="qandidate.toggle.manager" />
    <argument type="service" id="qandidate.toggle.user_context_factory" />
</service>
// Acme\Controller

public function __construct(
    /* ArticleRepository, Templating, ..*/ 
    ToggleManager $manager, 
    ContextFactory $contextFactory
) {
    // ..
    $this->manager = $manager;
    $this->context = $contextFactory->createContext();
}

// ..

public function articleAction(Request $request)
{
    $this->article = $this->repository->findBySlug($request->request->get('slug'));

    return $this->templating->render('article.html.twig', array(
        'article'        => $article,
        'enableComments' => $this->manager->active('comments', $this->context),
    ));
}

You can find a working example using the Symfony MicroKernelTrait in the Resources/doc/example directory.

Annotation Usage

You can also use the @Toggle annotation on a controller. When the toggle isn't active a 404 exception is thrown.

use Qandidate\Bundle\ToggleBundle\Annotations\Toggle;

/**
 * @Toggle("cool-feature")
 */
class FooController
{

    /**
     * @Toggle("another-cool-feature")
     */
    public function barAction()
    {
    }

    public function bazAction()
    {
    }
}

Twig usage

If you use Twig you can also use the function:

{% if feature_is_active('comments') %}
    {# Awesome comments #}
{% endif %}

Or the Twig test:

{% if 'comments' is active feature %}
    {# Awesome comments #}
{% endif %}

Both are registered in the ToggleTwigExtension.

Data collector

With the data collector you have a overview about all toggles. In the toolbar you see all conditions and the current status.

In the panel you have two lists:

  • You can see all keys and there current values.
  • Then you can see all configured toggles, there conditions and if they are active.

Testing

To run PHPUnit tests:

$ ./vendor/bin/phpunit

License

MIT, see LICENSE.