Cache only \Phalcon\Mvc\View::LEVEL_ACTION_VIEW level

Hello,

I would like to use the viewCache service to cache some fragment of my page, more precisely i want to cache my action view.

In my controller I tried the following code :

$this->view->cache(array("key" => "mykey", "lifetime" => 60, "level" => \Phalcon\Mvc\View::LEVEL_ACTION_VIEW))

This produces the entire page to be cache, not only my action View.

I'm on Phalcon 1.3.1.

Any Help appreciated !