Symfony 3 view overloading for controller inheritance - php

Question

Let's say I have 2 controllers, content and news:
class ContentController extends Symfony\Bundle\FrameworkBundle\Controller\Controller {
public function indexAction() {}
}
and
class NewsController extends ContentController {}
If the view for the indexAction does not exist for the news controller (the indexAction is inherited from the parent class), I want Symfony to use the view of the Content controller (indexAction). How can I achieve this?
Symfony always tries to render the view News/index.html.php but if this view does not exist I would like that Symfony renders Content/index.html.php.
Is it possible to tell the Symfony render engine something like this: If there exists the file News/index.html.php take this one, otherwise take Content/index.html.php
I'm using the PHP template engine, not twig.
We are currently using the Zend Framework and there you can simply add a script (view) path as described here View overloading in Zend Framework

Answer 1

I hope I understand you correctly and this could fix you problem:
class ContentController extends Symfony\Bundle\FrameworkBundle\Controller\Controller
{
/**
* #Route("/", name="content_index")
*/
public function indexAction()
{
// render Content/index.html.php
}
}
class NewsController extends ContentController
{
/**
* #Route("/news", name="content_news_index")
*/
public function indexAction()
{
parent::indexAction();
// render News/index.html.php
}
}
You have to adjust the routes to your needs.
Additional approach as requested in the comments:
use Symfony\Component\HttpFoundation\Request;
class ContentController extends Symfony\Bundle\FrameworkBundle\Controller\Controller
{
/**
* #Route("/", name="content_index")
* #Route("/news", name="content_news_index")
*/
public function indexAction(Request $request)
{
$routeName = $request->get('_route');
if ($routeName === 'content_index') {
// render Content/index.html.php
} elseif ($routeName === 'content_news_index') {
// render News/index.html.php
}
}
}