private function generate_response()
 {
     $page = AppContext::get_request()->get_getint('page', 1);
     $response = new SiteDisplayResponse($this->view);
     $graphical_environment = $response->get_graphical_environment();
     $graphical_environment->set_page_title($this->lang['online']);
     $graphical_environment->get_seo_meta_data()->set_canonical_url(OnlineUrlBuilder::home($page));
     $breadcrumb = $graphical_environment->get_breadcrumb();
     $breadcrumb->add($this->lang['online'], OnlineUrlBuilder::home($page));
     return $response;
 }