public function importBoardMember($oldUserId, $seq, $newBoardId)
{
$user = $this->ui->importUser($oldUserId);
$board = $this->em->getReference('OjsJournalBundle:Board', $newBoardId);
$member = new BoardMember();
$member->setUser($user)->setBoard($board)->setSeq($seq);
return $member;
}