Eccube\Repository\MemberRepository::delete PHP Method

    public function delete(\Eccube\Entity\Member $Member)
    {
        $em = $this->getEntityManager();
        $em->getConnection()->beginTransaction();
        try {
            $rank = $Member->getRank();
            $em->createQueryBuilder()->update('Eccube\\Entity\\Member', 'm')->set('m.rank', 'm.rank - 1')->where('m.rank > :rank')->setParameter('rank', $rank)->getQuery()->execute();
            $Member->setDelFlg(Constant::ENABLED)->setRank(0);
            $em->persist($Member);
            $em->flush();
            $em->getConnection()->commit();
        } catch (\Exception $e) {
            $em->getConnection()->rollback();
            return false;
        }
        return true;
    }