【发布时间】：2014-12-11 10:12:59
【问题描述】：
我正在学习 Symfony，我正在尝试创建：一个新的服务和事件
我的服务发送电子邮件
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('xxx@example.com')
->setTo('cc@gmail.com')
->setBody('ok');
$this->mail->send($msg);
}
}
我的活动
我已经创建了这些类
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
}
}
在我的控制器中
$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');
我想在我的活动中使用我的服务，但我遇到了这个错误
ContextErrorException：可捕获的致命错误：参数 2 传递给 Acme\UserBundle\Event\NewUserListener::sendEmailToUsers() 必须是 Acme\UserBundle\Services\sendEmail 的实例，没有给出 Acme/UserBundle/Event/NewUserListener.php
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