public function setUserInitDate(User $user)
{
$accountDuration = $this->platformConfigHandler->getParameter('account_duration');
$expirationDate = new \DateTime();
$accountDuration === null ? $expirationDate->setDate(2100, 1, 1) : $expirationDate->add(new \DateInterval('P' . $accountDuration . 'D'));
$user->setExpirationDate($expirationDate);
$user->setInitDate(new \DateTime());
$this->objectManager->persist($user);
$this->objectManager->flush();
}