symfony - Symfony2: ESI setMaxAge Cache -

i have controller action rendered in twig with

{{ render_esi(controller('mywebsitebundle:element:header')) }}

the action looks this:

/**      * @return response      */     public function headeraction()     {         $currentlocale = $this->getcurrentlocale();          $response = $this->render('mywebsitebundle:element:header.html.twig', array(             'currentlocale' => $currentlocale,             'mytime' => time()         ));         $response->setpublic();         $response->setsharedmaxage(3600);          return $response;     } 

when reload browser, "mytime" changes everytime.

how can use setshardemaxage(), twig renderd after maxage expired?

in symfony2 there's few things need in order activate esi caching.

1) in app/config/config.yml make sure activated esi, fragments path.

framework:     esi: { enabled: true }     fragments: { path: /_proxy } 

2) wrap kernel appcache object

// web/app.php $kernel = new appcache($kernel);  

3) set appcache configuration

// app/appcache.php use symfony\bundle\frameworkbundle\httpcache\httpcache;  class appcache extends httpcache {     protected function getoptions()     {         return array(             'debug'                  => false,             'default_ttl'            => 0,             'private_headers'        => array('authorization', 'cookie'),             'allow_reload'           => false,             'allow_revalidate'       => false,             'stale_while_revalidate' => 2,             'stale_if_error'         => 60,         );     } } 

about issue if caching response , problem it's reloading every time refresh page. make sure configuration allow_reload property set false.

you can read more here: http://symfony.com/doc/current/book/http_cache.html