public function tran2(Application $app)
{
// update 1
$BaseInfo = $app['eccube.repository.base_info']->get();
$BaseInfo->setCompanyName('tran2-1');
$app['orm.em']->flush($BaseInfo);
// update 2
$BaseInfo->setCompanyName('tran2-1');
$app['orm.em']->flush($BaseInfo);
// 1/2 は rollback.
throw new \Exception();
return $app->render('index.twig');
}