EmailSender

<?php

namespace Foobar\NewsBundle\Listener;

use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Foobar\NewsBundle\Entity\Item;
use Foobar\NewsBundle\Entity\Subscriber;

/**
 * Listener EmailSender
 */
class EmailSender
{
  protected $container, $mailer, $entity, $em;

  /**
   * Set Container and Swift_Mailer
   * 
   * @param ContainerInterface $container
   * @param \Swift_Mailer $mailer 
   */
  public function __construct(ContainerInterface $container, \Swift_Mailer $mailer)
  {
    $this->container = $container;
    $this->mailer = $mailer;
  }

  /**
   * postPersist Event Listener
   * Send email after Item is saved
   * 
   * @param LifecycleEventArgs $args 
   */
  public function postPersist(LifecycleEventArgs $args)
  {
    $this->entity = $args->getEntity();
    $this->em = $args->getEntityManager();

    if ($this->entity instanceof Item) 
    {
      $this->sendNewsletters();
    }

    if ($this->entity instanceof Subscriber) 
    {
      $this->sendConfirmation();
    }
  }

  /**
   * Queue newsletters
   * Emails are not actually sent from here, a cron task will send from the spool
   */
  public function sendNewsletters()
  {
    $message = \Swift_Message::newInstance()
      ->setSubject('Newsletter - '.$this->entity->getTitle())
      ->setFrom('[email protected]')
      ->setBody($this->container->get('templating')->render(
            'FoobarNewsBundle:Email:newsletter.txt.twig',
            array("item" => $this->entity)
            ));

    $subscribers = $this->em
      ->getRepository('FoobarNewsBundle:Subscriber')
      ->findBy(array("is_active" => true));

    foreach($subscribers as $subscriber)
    {
      $message->setTo($subscriber->getEmail());
      $this->mailer->send($message);
    }
  }

  /**
   * Send confirmation email
   * Emails are not actually sent from here, a cron task will send from the spool
   */
  public function sendConfirmation()
  {
    $message = \Swift_Message::newInstance()
      ->setSubject('Newsletter Confirmation')
      ->setFrom('[email protected]')
      ->setTo($this->entity->getEmail())
      ->setBody($this->container->get('templating')->render(
            'FoobarNewsBundle:Email:confirm.txt.twig',
            array("subscriber" => $this->entity)
            ));

    $this->mailer->send($message);
  }
}