如何获取 Symfony 控制器中搜索查询的总计数

Question

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。

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什么是有效的：我能够获取并存储查询，但我不知道如何获取搜索结果的总数。

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这是来自控制器的代码示例。当我当前尝试此操作时，我得到以下信息

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错误：可捕获的致命错误：类对象\n Knp\\Bundle\\PaginatorBundle\\Pagination\\SlidingPagination 无法\n 转换为字符串

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我尝试通过请求 $pagination[totalCount] 将 $pagination 像数组一样处理，但只是返回 null。

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 public function fpcAction(Request $request)\n    {\n\n            $query = dump($request->query->get(\'q\'));\n\n            $finder = $this->container->get(\'fos_elastica.finder.app.product\');\n            $page = $request->query->getInt(\'page\', 1);\n\n            $paginator = $this->get(\'knp_paginator\');\n            $results = $finder->createPaginatorAdapter($query);\n            $pagination = $paginator->paginate($results, $page, 12);\n\n\n\n            $searchmetrics = new SearchTerms();\n            $searchmetrics->setSearchterm($query);\n            $searchmetrics->setDate(time());\n\n            // TODO: Need to get the total qty of search results for this specific query\n            $searchmetrics->setResultsqty($pagination);\n\n            $entityManager = $this->getDoctrine()->getManager();\n            $entityManager->persist($searchmetrics);\n            $entityManager->flush();\n\n\n            return $this->render(\'default/search.html.twig\', [\'searchresults\' => $pagination, \'query\' => $query]);\n\n    }\n

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这是在树枝模板上输出的变量转储：

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 "searchresults" => SlidingPagination {#1028 \xe2\x96\xbc\n    -route: "search"\n    -params: array:1 [\xe2\x96\xb6]\n    -pageRange: 5\n    -template: "@KnpPaginator/Pagination/sliding.html.twig"\n    -sortableTemplate: "@KnpPaginator/Pagination/sortable_link.html.twig"\n    -filtrationTemplate: "@KnpPaginator/Pagination/filtration.html.twig"\n    #currentPageNumber: 1\n    #numItemsPerPage: 12\n    #items: array:12 [\xe2\x96\xb6]\n    #totalCount: 8104\n    #paginatorOptions: array:6 [\xe2\x96\xb6]\n    #customParameters: []\n  }\n

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Answer 1

你应该做

$searchmetrics->setResultsqty($pagination->getTotalItemCount());

事实上，$pagination是类的Knp\Bundle\PaginatorBundle\Pagination\SlidingPagination ，这是父类的代码Knp\Component\Pager\Pagination\AbstractPagination https://github.com/KnpLabs/knp-components/blob/master/src/Knp/Component/Pager/Pagination/AbstractPagination.php#L118:L121