public function moveRank(Application $app, Request $request)
{
if ($request->isXmlHttpRequest()) {
$ranks = $request->request->all();
foreach ($ranks as $categoryId => $rank) {
$ClassCategory = $app['eccube.repository.class_category']->find($categoryId);
$ClassCategory->setRank($rank);
$app['orm.em']->persist($ClassCategory);
}
$app['orm.em']->flush();
}
return true;
}