Doctrine 2: Update query with query builder

I think you need to use ->set() It’s much safer to make all your values parameters:

$queryBuilder = $this->em->createQueryBuilder();
$query = $queryBuilder->update('models\User', 'u')
        ->set('u.username', ':userName')
        ->set('u.email', ':email')
        ->where('u.id = :editId')
        ->setParameter('userName', $userName)
        ->setParameter('email', $email)
        ->setParameter('editId', $editId)
        ->getQuery();
$result = $query->execute();