CODEWITHSUNDEEP
phpsymfony
monkeyUser
monkeyUser

Reputation: 4679

Use custom Service inside Custom Event

I'm learning Symfony and I'm trying to create: a new service and Event

My service send emails

config.yml

parameters:
    MyService.class:      Acme\UserBundle\Services\sendEmail
    MyService.transport:  sendmail

service.yml

services:
    MyService:
        class:        %MyService.class%
        arguments:    [@mailer]

sendEmail.php

class sendEmail {

    private $mail;

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

    public function sendMail () {
        $msg = \Swift_Message::newInstance()
            ->setSubject('Hi')
            ->setFrom('[email protected]')
            ->setTo('[email protected]')
            ->setBody('ok');
        $this->mail->send($msg);
    }


}

My Event

I have created these class

UserEvent.php
    <?php
    namespace Acme\UserBundle\Event;


    final class UserEvents {

        const NEW_USER='new.user';


    }

newUserEvent.php

<?php

/**
 * EVENT DISPATCHER
 */
namespace Acme\UserBundle\Event;

use Acme\UserBundle\Entity\User;
use Symfony\Component\EventDispatcher\Event;


class NewUserEvent extends Event {

    protected $user;

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

    public function getUser () {
        return $this->user;
    }
}

newUserListener.php

<?php

namespace Acme\UserBundle\Event;
use Acme\UserBundle\Services\sendEmail;    

class NewUserListener {

    public function sendEmailToUsers(NewUserEvent $event,sendEmail $service)
    {
        // ... send email to users
    }
}

in my controller

$em = $this->getEm();

        $dispatcher = new EventDispatcher();

        // attach listener
        $listner = new NewUserListener();
        $dispatcher->addListener(UserEvents::NEW_USER,array($listner,'sendEmailToUsers'));

        $user = $em->getRepository('AcmeUserBundle:User')->findOneBy(array('username' => 'alex')); //mock
        $event = new NewUserEvent($user,$this->get('MyService'));
        $dispatcher->dispatch(UserEvents::NEW_USER,$event);



        return new Response('hi');

I'd like to use my service inside my event by I have this error

ContextErrorException: Catchable Fatal Error: Argument 2 passed to Acme\UserBundle\Event\NewUserListener::sendEmailToUsers() must be an instance of Acme\UserBundle\Services\sendEmail, none given in Acme/UserBundle/Event/NewUserListener.php

Upvotes: 0

Views: 189

Answers (1)

Christophe Willemsen
Christophe Willemsen

Reputation: 20185

There are many points here :

  • You create a new event dispatcher in your controller, but the event dispatcher service is already available in a standard Symfony app, you should use it and register your listener with the kernel.event_listener tag for your service :

http://symfony.com/doc/current/cookbook/service_container/event_listener.html

$disptacher = $this->container->get('event_dispatcher');
  • Secondly, nowhere you inject your service in your listener ?

Upvotes: 1

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