Symfony ile ORM, DBAL ve PDO hatalarını yakalama

namespace Football\FrontendBundle\Controller;

use Doctrine\DBAL\DBALException;
use Doctrine\ORM\ORMException;
use PDOException;
use Exception;
use Football\FrontendBundle\Entity\Country;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class CountryController extends Controller
{
    public function createAction()
    {
        $country = new Country();
        $country->setCode('GB');
        $country->setName('United Kingdom');

        $em = $this->getDoctrine()->getEntityManager();

        try {
            $em->persist($country);
            $em->flush();
            $message = 'Done';
        } catch (DBALException $e) {
            $message = sprintf('DBALException [%i]: %s', $e->getCode(), $e->getMessage());
        } catch (ORMException $e) {
            $message = sprintf('ORMException [%i]: %s', $e->getCode(), $e->getMessage());
        } catch (PDOException $e) {
            $message = sprintf('PDOException [%i]: %s', $e->getCode(), $e->getMessage());
        } catch (Exception $e) {
            $message = sprintf('Exception [%i]: %s', $e->getCode(), $e->getMessage());
        }

        echo $message;
    }
}