public function createTeam(Request $request)
    {
        $teamForm = $this->createForm(TeamType::class);

        $teamForm->handleRequest($request);
        if ($teamForm->isSubmitted() && $teamForm->isValid()) {

            $user = $this->getUser();
            $team = $teamForm->getData();

            $team->setCreatedAt(new DateTime())
                 ->setCreator($user);

            $this->em->persist($team);
    //dd($team);
            $this->em->flush();

        }

TeamController.php on line 52:
Team {#591 ▼
  -id: null
  -creator: SteamUser {#238 ▼
    -id: 1
    -roles: array:1 [▶]
    -nickName: "steamuser"
    -userName: "76561192288153971"
    -password: "LrC8fFLuIdPqAiDHDATiheRaIBk="
    -avatar: "https://steamcdn-a.akamaihd.net/steamcommunity/public/images/avatars/9e/9e8567cc32383f28df41da7fbca7e8afd47f8516.jpg"
    -teams: PersistentCollection {#290 ▶}
  }
  -name: "dasdasdasdas"
  -logo: null
  -teamType: 2
  -createdAt: DateTime {#594 ▶}
  -roster: ArrayCollection {#571 ▶}
}