ZF3 + Doctrine - how to retreive MySQL error?

Hello,

I have an EntityManager (PilotManager class) and function:

/**
 * Entity manager
 * @var Doctrine\ORM\EntityManager;
 */
private $entityManager;

/**
 * Constructor
 */
public function __construct($entityManager)
{
    $this->entityManager = $entityManager;
}

public function addNewPilot($data)
{       
    // Create new Pilot entity
    $pil = new Pilot();
    $pil->setName($data['name']);
    $pil->setCity($data['city']);

    var_dump($pil);
    // Add the entity to entity manager
    var_dump($this->entityManager->persist($pil));

    // Apply changes to database
    var_dump($this->entityManager->flush());
    echo 'x';

    return $pil;
}

And something goes wrong while doing ->flush(), script stops on this command, but I don’t see any error in log and on stdout (however it’s configured and I can see any other errors, warnings and notices).

How can I receive SQL error and avoid script to return 200 (returns it now)?

Doctrine ORM throws exceptions if there was an SQL-level error: you don’t get any output or return value on failures.