TwigMailerService

_mail.html.twig.html

{# Template than our mails can extends #}

{% block subject '' %}

{% block body_html '' %}

{% block body_text %}
    {{ block('body_html')|striptags }}
{% endblock %}

config.yml

parameters:
    twig_mailer.sender_name: Admin
    twig_mailer.sender_address: admin@noreply.com

ExampleController.php

<?php
    $this->get('ns.twig_mailer')->send(
        'NSWebBundle:Mail:forgottenPassword.mail.twig',
        $user->getEmail(),
        array('user'  => $user, 'token' => $token)
    );

exampleMail.html.twig.html

{% extends 'NSWebBundle:Mail:_mail.html.twig' %}

{% block subject %}
    Forgotten password
{% endblock %}

{% block body_html %}
    Some random message
{% endblock %}

services.xml

<!-- from <services> -->
<service id="ns.twig_mailer" class="NS\Bundle\CoreBundle\Service\TwigMailer">
    <argument type="service" id="twig" />
    <argument type="service" id="mailer" />
    <argument type="string">%twig_mailer.sender_address%</argument>
    <argument type="string">%twig_mailer.sender_name%</argument>
</service>

TwigMailer.php

<?php

namespace NS\Bundle\CoreBundle\Service;

use Twig_Environment;
use Swift_Message;
use Swift_Mailer;

class TwigMailer
{
    /**
     * @var Twig_Environment
     */
    protected $twig;

    /**
     * @var Swift_Mailer
     */
    protected $mailer;

    public function __construct(Twig_Environment $twig, Swift_Mailer $mailer, $senderEmail, $senderName)
    {
        $this->twig = $twig;
        $this->mailer = $mailer;
        $this->fromEmail = $senderEmail;
        $this->fromName = $senderName;
    }

    /**
     * @param string $templateName full name of template to fetch, can contain 'subject', 'body_html', 'body_text'
     * @param array $parameters to pss to Twig template
     * @return Swift_Message
     * @throw \InvalidArgumentException if Twig template is not found
     */
    public function getMessage($templateName, $parameters = array())
    {
        $template = $this->twig->loadTemplate($templateName);

        $subject  = $template->renderBlock('subject', $parameters);
        $bodyHtml = $template->renderBlock('body_html', $parameters);
        $bodyText = $template->renderBlock('body_text', $parameters);

        if (!$subject) {
            throw new \InvalidArgumentException('Provided template must have a subject block');
        }
        if (!$bodyHtml) {
            throw new \InvalidArgumentException('Provided template must have a body_html block');
        }
        if (!$bodyText) {
            throw new \InvalidArgumentException('Provided template must have a body_text block');
        }

        $message = Swift_Message::newInstance()
            ->setSubject($subject)
            ->setFrom(
                $this->fromEmail,
                $this->fromName
            )
            ->setBody($bodyText, 'text/plain')
            ->addPart($bodyHtml, 'text/html')
        ;

        return $message;
    }

    /**
     * @param string $templateName full name of template to fetch, can contain 'subject', 'body_html', 'body_text'
     * @param string|array $addresses email address(es) to send to
     * @param array $parameters to pass to Twig template
     * @return int number of successfully send messages
     * @throw \InvalidArgumentException if Twig template is not found
     */
    public function send($templateName, $addresses, $parameters = array())
    {
        $message = $this->getMessage($templateName, $parameters);

        $message->setTo($addresses);

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