Using docrtrine in Symfony2 - php

Question

I'm working on a php project but I have a problem with the database , I use this code to get data from the database :
public function getSeenAction(Request $request , $notificationId)
{
$sessionId = $request->headers->get('SessionID');
if( $sessionId == null )
{
//return new Response("Unauthorized",401);
}
$notificationRepo = $this->getDoctrine()->getRepository('MegasoftEntangleBundle:Notification');
$notification = $notificationRepo->findOneById($notificationId);
if($notification == null)
{
return new Response("Notification not found" ,404);
}
$seen = $notification->getSeen();
$response = new JsonResponse();
$response->setdata(array('seen'=>$seen));
$response->setStatusCode(200);
return $response;
}
I tried the same code with other tables and it worked , but whenever I retrive data from the Notification table it always give null , although the table contains the data.

Answer 1

$notificationRepo = $this->getDoctrine()->getRepository('MegasoftEntangleBundle:Notification');
$notification = $notificationRepo->findAll();
var_dump(notification);
Is this code returns you something ? Probably the code of your NotificationRepository.php is not good, can you put it on ?

Answer 2

Try using find instead of findOneById if you just want to find record by Id.
On the other hand if you want to use findOneBy the passed argument for criteria should be an array.
$result = $notificationRepo->find($notificationId);
Or
$result = $notificationRepo->findOneBy(array('id' => $notificationId));
Or
make sure you have a proper code for findOneById in your NotificationRepository.php file
Then you can check
if (!empty($result)) { ... }