gistfile1.txt

<?php

public function test() {
    $user = $this->entityManager->getRepository('Blar\\Model\\User')->findOneById(1);
    var_dump($user->getName());
    $article = $this->entityManager->getRepository('Blar\\Model\\News\\Article')->findOneBy(array(
        'user' => $user
    ));
    var_dump($article->getName());
}

?>
string(4) "Blar"
Catchable fatal error: Object of class Blar\Model\User could not be converted to string in /Users/Blar/Sites/blar/vendor/DBAL2/lib/Doctrine/DBAL/Connection.php on line 1027