public function display($id) { if (class_exists('\\Gantry\\Joomla\\TemplateInstaller')) { $installer = new TemplateInstaller(); $installer->loadExtension($this->container['theme.name']); $installer->installMenus(); $installer->cleanup(); } return new JsonResponse(['html' => 'Menus have been installed!', 'title' => 'Installed']); }