Symfony2 event

01_config.yml

services:
    euphory_storebundle.listener.comment:
        class:        Euphory\StoreBundle\Event\CommentListener
        arguments:    [@logger]
        tags:
            - { name: kernel.event_listener, event: euphory_storebundle.post.comment, method: onCommentEvent }
            - { name: kernel.event_listener, event: euphory_storebundle.post.remove, method: onRemoveEvent }

02_listener.php

<?php

namespace Euphory\StoreBundle\Event;

class CommentListener
{
    protected $logger;

    public function __construct($logger)
    {
        $this->logger = $logger;
    }

    public function onCommentEvent(CommentEvent $event)
    {
        $this->logger->info("onCommentEvent");

    }

    public function onRemoveEvent(CommentEvent $event)
    {
        $this->logger->info("onRemoveEent");
    }
}

03_event.php

<?php

namespace Euphory\StoreBundle\Event;

use Symfony\Component\EventDispatcher\Event;

class CommentEvent extends Event
{
    protected $post;
    protected $comment;

    public function __construct($post, $comment)
    {
        $this->post = $post;
        $this->comment = $comment;
    }
}

04_controller.php

<?php

class DefeultController extends Symfony\Bundle\FrameworkBundle\Controller\Controller
{
    public function dispatchAction()
    {
        $dispatcher = $this->get('event_dispatcher');
        $dispatcher->dispatch('euphory_storebundle.post.comment', new \Euphory\StoreBundle\Event\CommentEvent($post, $comment));
    }
}