Newscoop\Entity\User::setLastLogin PHP Method

    public function setLastLogin(\DateTime $lastLogin = null)
    {
        $this->lastLogin = $lastLogin;
        return $this;
    }

 /**
  * Add identity
  *
  * @param Newscoop\Entity\User $user
  * @param string $provider
  * @param string $providerUserId
  * @return void
  */
 public function addIdentity(User $user, $provider, $providerUserId)
 {
     $userIdentity = $this->em->getRepository('Newscoop\\Entity\\UserIdentity')->findOneBy(array('provider' => $provider, 'provider_user_id' => $providerUserId));
     if ($userIdentity) {
         return $userIdentity;
     }
     $userIdentity = new UserIdentity($provider, $providerUserId, $user);
     $this->em->persist($userIdentity);
     $user->setLastLogin(new \DateTime());
     $this->em->flush();
     return $userIdentity;
 }