public function fetch($user, $page)
 {
     $pageoffset = $page - 1;
     $template = new TemplateResponse('activity', 'stream.list', ['activity' => $this->data->read($this->helper, $this->settings, self::DEFAULT_PAGE_SIZE * $pageoffset, self::DEFAULT_PAGE_SIZE, 'all', $user), 'displayHelper' => $this->display], '');
     file_put_contents('show_activity', $template->render());
     return $template->render();
 }