Symfony 4 using Logger and Dump inside a Controller - symfony

Question

I'm new to Symfony 4, I'm using profiler to debug in a dev environment.
I'm trying to debug a function in controller/ But I can't use a logger or a dump nothing appear.
<?php
namespace App\Controller;
use Sonata\AdminBundle\Controller\CRUDController as Controller;
use Sonata\AdminBundle\Datagrid\ProxyQueryInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Psr\Log\LoggerInterface;
class CRUDController extends Controller
{
private $logger;
public function __construct(LoggerInterface $logger)
{
$this->logger = $logger;
}
public function batchActionDownload(ProxyQueryInterface $selectedModelQuery)
{
$this->logger->debug('exampleMethod :: $ourVar at interesting time', [
'our_var' => $selectedModelQuery
]);
var_dump($selectedModelQuery);
dump($selectedModelQuery);
return new RedirectResponse(
$this->admin->generateUrl('list', $this->admin->getFilterParameters())
);
}
I have no error, but simply my debug isn't showing up.
Any Idea of what I'm doing bad ?

Answer 1

Normally the best way to define the route is to use the annotation. You are new and i don't how know you have defined your route.
But if seems that your functions isn't called. So try to set a route and call it in your browser.
/**
* #Route("/mycrud", name="mycrud")
*/
public function batchActionDownload(ProxyQueryInterface $selectedModelQuery)
Then you should be able to open your function in the browser under http://yourdomain/mycrud. Then you should see the debug bar and your var_dump.
The next thing is you redirect in your function. So you output something and redirect. You can't see the output in that place. You have to stop the code before output with an exit for example.