Question

I am customizing the confirmation email sent after user registration.
My problem is that I can’t access session vars in the email template.

Here is my code (similar to FOSUser documentation) :

{# src/Acme/DemoBundle/Resources/views/User/confirmation.email.twig #}

{% block subject %}Confirmation{% endblock %}

{% block body_text %}
{% autoescape false %}
Hello {{ user.username }} !

Your locale is : {{ app.session.locale }}

Click on the following link to confirm your registration : {{ confirmationUrl }}

Greetings,
the Acme team
{% endautoescape %}
{% endblock %}

{% block body_html %}
{% include 'AcmeDemoBundle:User:confirmation_email.html.twig' %}
{% endblock %}

The following line returns an exception :

Your locale is : {{ app.session.locale }}

Exception :

Variable "app" does not exist in ...

How can I access session var from this template ?

I also need to access config parameters (from parameters.ini).
My parameters are already in global Twig access, but no way to access them in this template.

Many thanks for your help !
A

Answer 1

TwigSwiftMailer class only expose User entity and confirmation url to the template. You have to extend the class and modify the methods. Then create the service and set as default mailer. You can check here for service definition.

Edit:

Sample implementation would be

The class .

//namespace declaration

class MySwiftMailer extends TwigSwiftMailer
{
    private $container;

    /**
     * @param Symofony\Component\DependencyInjection\ContainerInerface   $container
     */
    public function setContainer(ContainerInterface $container)
    {
        $this->container = $container;
    }


    public function sendConfirmationEmailMessage(UserInterface $user)
    {
        $template = $this->parameters['template']['confirmation'];
        $url = $this->router->generate('fos_user_registration_confirm', array('token' => $user->getConfirmationToken()), true);
        $context = array(
            'user' => $user,
            'container' => $this->container,
            'session' => $this->container->get('request')->getSession(), // expose session
            'confirmationUrl' => $url
        );

        $this->sendMessage($template, $context, $this->parameters['from_email']['confirmation'], $user->getEmail());
    }

    // implement sendResettingEmailMessage() in same way
}

Service declaration. Create a class named mailer.xml in your bundles Resources/config folder.

<?xml version="1.0" encoding="UTF-8"?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>

        <service id="fos_user.mailer.my_swift_mailer" class="FOS\UserBundle\Mailer\TwigSwiftMailer" >
            <argument type="service" id="mailer" />
            <argument type="service" id="router" />
            <argument type="service" id="twig" />
            <argument type="collection">
                <argument key="template" type="collection">
                    <argument key="confirmation">%fos_user.registration.confirmation.template%</argument>
                    <argument key="resetting">%fos_user.resetting.email.template%</argument>
                </argument>
                <argument key="from_email" type="collection">
                    <argument key="confirmation">%fos_user.registration.confirmation.from_email%</argument>
                    <argument key="resetting">%fos_user.resetting.email.from_email%</argument>
                </argument>
            </argument>

            <call method="setContainer">
                <argument type="service" id="service_container" />
            </call>

        </service>

    </services>

</container>

To include the loader.xml you have to include following lines in load method of YourBundle/DependencyInjection/YourBundleExtension.php

$xmlLoader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
$xmlLoader->load("mailer.xml");

And in app/config.yml set the mailer.

# app/config/config.yml

fos_user:
    # ...
    service:
        mailer: fos_user.mailer.my_swift_mailer

Now in your template you can do {{ session.get('var') }} or {{ container.getParameter('any_param') }}