public function __construct($app)
 {
     $this->app = $app;
     $app->group('/group', function () use($app) {
         $restService = new \Core\Service\RestService($app);
         $groupService = new \Core\Service\GroupService();
         $restService->get('/check', function () use($groupService) {
             return $groupService->check($_GET['name'], isset($_GET['cid']) ? intval($_GET['cid']) : null);
         });
         $restService->get('/validation', function () use($groupService) {
             return $groupService->getForValidation($_GET['cid']);
         });
         $restService->get('/autocomplete', function () use($groupService) {
             return $groupService->getAutocomplete($_GET['s']);
         });
         $restService->get('/list', function () use($groupService) {
             return $groupService->getList($_GET['type'], intval($_GET['page']));
         });
         $restService->get('/:id', function ($id) use($groupService) {
             return $groupService->get($id);
         });
         $restService->post('/', function () use($groupService) {
             $data = getPost();
             return $groupService->save($data);
         });
         $restService->delete('/:id', function ($id) use($groupService) {
             return $groupService->delete($id);
         });
     });
 }