How to retrieve the contents of a rendered template in Symfony2 and store in a String

Question

I’m using the Symfony2, I’m still getting familiar with this framework. And when using my controller I’m not sure how to pick up the output generated by it and play for a string. I need to play for a string to treat because I’m using the pjax and if the request is a request originated by pjax i need to send only a snippet of the page (the content I want to modify), to do this I intend to use the Crawler and thus return only the correct content, depending on the situation. The problem is that I don’t know how to capture the HTML that the Controller generates.

<?php
/**
 * State controller.
 *
 * @Route("/state")
 */
class StateController extends Controller {

    /**
     * Lists all State entities.
     *
     * @Route("/", name="state")
     * @Method("GET")
     * @Template()
     */
    public function indexAction() {
        $em = $this->getDoctrine()->getManager();

        $entities = $em->getRepository('AmbulatoryBundle:State')->findAll();

        $rendered = $this->render('TestBundle:State:index.html.twig', array(
            'entities' => $entities,
        ));

        return $rendered; // Preciso pegar o conteúdo gerado aqui em string
    }

?>

Answer 1

SF2 returns the object \Symfony\Component\HttpFoundation\Response in his controller.

For you to have access to string Html, you can do it this way:

<?php
/**
 * State controller.
 *
 * @Route("/state")
 */
class StateController extends Controller {

    /**
     * Lists all State entities.
     *
     * @Route("/", name="state")
     * @Method("GET")
     * @Template()
     */
    public function indexAction() {
        $em = $this->getDoctrine()->getManager();

        $entities = $em->getRepository('AmbulatoryBundle:State')->findAll();

        $response = $this->render('TestBundle:State:index.html.twig', array(
            'entities' => $entities,
        ));

        $html = $response->getContent(); // Faça algo com a string....

        return $response;
    }

More details on Doc of the object