用例：我想将搜索查询和结果总数存储到数据库中，这样我就可以看到人们正在搜索的内容在我的应用程序中不存在。
工作原理：我能够获取和存储查询，但我不知道如何获取搜索结果的总数。
这是来自控制器的代码示例。当我目前尝试这个时，我得到以下信息
错误：可捕获的致命错误：类 Knp\Bundle\PaginatorBundle\Pagination\SlidingPagination 的对象无法转换为字符串
我尝试通过请求 $pagination[totalCount] 将 $pagination 视为一个数组，但这只是返回 null。
public function fpcAction(Request $request)
{
$query = dump($request->query->get('q'));
$finder = $this->container->get('fos_elastica.finder.app.product');
$page = $request->query->getInt('page', 1);
$paginator = $this->get('knp_paginator');
$results = $finder->createPaginatorAdapter($query);
$pagination = $paginator->paginate($results, $page, 12);
$searchmetrics = new SearchTerms();
$searchmetrics->setSearchterm($query);
$searchmetrics->setDate(time());
// TODO: Need to get the total qty of search results for this specific query
$searchmetrics->setResultsqty($pagination);
$entityManager = $this->getDoctrine()->getManager();
$entityManager->persist($searchmetrics);
$entityManager->flush();
return $this->render('default/search.html.twig', ['searchresults' => $pagination, 'query' => $query]);
}
这是在 twig 模板上输出的变量的转储：
"searchresults" => SlidingPagination {#1028 ▼
-route: "search"
-params: array:1 [▶]
-pageRange: 5
-template: "@KnpPaginator/Pagination/sliding.html.twig"
-sortableTemplate: "@KnpPaginator/Pagination/sortable_link.html.twig"
-filtrationTemplate: "@KnpPaginator/Pagination/filtration.html.twig"
#currentPageNumber: 1
#numItemsPerPage: 12
#items: array:12 [▶]
#totalCount: 8104
#paginatorOptions: array:6 [▶]
#customParameters: []
}