Symfony2将变量从控制器传递给javascript

Question

I have this controller.php

    $repository = $this->getDoctrine()->getManager()->getRepository('TechappStatsBundle:ParentForm');
    $data = $repository->findBy(array(),array('id' => 'desc'),1,0); 

    $formulaire = new ParentForm();

    $parent= $this->get('form.factory')->create(new ParentFormType(),$formulaire);

    if ($parent->handleRequest($request)->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($formulaire);
        $em->flush();
    }

    return $this->render('TechappStatsBundle:Stats:index.html.twig',array("res" => $data,
        "parentform"=>$parent->createView(),));

I want to check the variable res in my view with js if it is equals to a specific value or not but I don't know how to pass it.

Answer 1

You can pass the parameters from controller like:

return $this->render('TechappStatsBundle:Stats:index.html.twig', array(
                "res" => "Your data here"));

And you can access the "res" parameter in index.html.twig like:

{% block js %}
 <script type="text/javascript">
var res = '{{ res }}';
alert(res);
</script>
{% endblock %}