search.html

---
title: Search results
toc: false
contribute: false
build_for: [cockroachdb, cockroachcloud]
---

<div id="search-stats"></div>
<div id="search-hits"></div>
<div id="search-pages"></div>
<script>
  const queryString = (function() {
    // This function is anonymous, is executed immediately and
    // the return value is assigned to QueryString!
    const query_string = {};
    const query = window.location.search.substring(1);
    const vars = query.split("&");
    for (var i = 0; i < vars.length; i++) {
      const pair = vars[i].split("=");
      // If first entry with this name
      if (typeof query_string[pair[0]] === "undefined") {
        query_string[pair[0]] = decodeURIComponent(pair[1]);
        // If second entry with this name
      } else if (typeof query_string[pair[0]] === "string") {
        const arr = [query_string[pair[0]], decodeURIComponent(pair[1])];
        query_string[pair[0]] = arr;
        // If third or later entry with this name
      } else {
        query_string[pair[0]].push(decodeURIComponent(pair[1]));
      }
    }
    return (query_string.query || "").replace(/\+/g, " ");
  })();

  const router = instantsearch.routers.history({
    windowTitle({ category, query }) {
      const queryTitle = query ? `Results for "${query}"` : "Search";
      return queryTitle;
    },

    createURL({ qsModule, routeState, location }) {
      const urlParts = location.href.match(/^(.*?)\/search/);
      const baseUrl = `${urlParts ? urlParts[1] : ""}/`;

      const queryParameters = {};
      const { query = "", page } = qsModule.parse(location.search.slice(1));
      queryParameters.query = query;

      if (page !== 1) {
        queryParameters.page = routeState.page;
      }

      const queryString = qsModule.stringify(queryParameters, {
        addQueryPrefix: true,
        arrayFormat: "repeat"
      });

      return `${baseUrl}search.html${queryString}`;
    },

    parseURL({ qsModule, location }) {
      const pathnameMatches = location.pathname.match(/search\/(.*?)\/?$/);
      const { query = "", page } = qsModule.parse(location.search.slice(1));

      return {
        query,
        page
      };
    }
  });

  const stateMapping = {
    stateToRoute(uiState) {
      return {
        query: uiState["{{site.algolia.index_name}}"].query,
        page: uiState["{{site.algolia.index_name}}"].page
      };
    },

    routeToState(routeState) {
      return {
        // eslint-disable-next-line camelcase
        "{{site.algolia.index_name}}": {
          query: routeState.query,
          page: routeState.page
        }
      };
    }
  };

  $("#search-input").val(queryString);
  const searchClient = algoliasearch(
    "{{site.algolia.application_id}}",
    "{{site.algolia.search_api_key}}"
  );

  const search = instantsearch({
    indexName: "{{site.algolia.index_name}}",
    routing: {
      router,
      stateMapping
    },
    searchClient
  });

  const addToResultsIfPresent = (match) => {
    if(match && match.matchLevel && match.matchLevel !== 'none' && match.value) {
      return (match.value || '') + '<br>';
    }
    return '';
  }

  const showResult = ({content, tags, title, html}) => {
    if(content && content.value) {
      return content.value
    }
    return addToResultsIfPresent(title) + addToResultsIfPresent(tags);
  }

  // Create the render function
  const renderHits = (renderOptions, isFirstRender) => {
    const { hits, widgetParams } = renderOptions;
    var div = $("<div/>");
    let results = "";
    if (hits.length) {
      results = hits
        .map(
          hit =>
            `<div class="search-item">
  			  <div class="search-title">
  			    <a href="${hit.url}">${hit.title}</a>
  			  </div>
  			  <div class="search-snippet">${showResult(hit._highlightResult)}</div>
  			  <div class="search-link">${hit.doc_type}</div>
  			</div>`
        )
        .join("");
    } else {
      results = "<p>No results.</p>";
    }
    widgetParams.container.innerHTML = results;
  };

  // Create the custom widget
  const customHits = instantsearch.connectors.connectHits(renderHits);

  search.addWidgets([
    customHits({
      container: document.querySelector("#search-hits")
    }),
    instantsearch.widgets.stats({
      container: "#search-stats",
      templates: {
        text(data) {
          let count = "";
          if (data.hasManyResults) {
            count += `${data.nbHits} results`;
          } else if (data.hasOneResult) {
            count += `1 result`;
          } else {
            count += `no result`;
          }
          return `${count} found for ‘${queryString}’`;
        }
      }
    }),
    instantsearch.widgets.pagination({
      container: "#search-pages",
      padding: 2,
      showFirst: false,
      showLast: false,
      templates: {
        previous: '<span class="fas fa-chevron-left" />',
        next: '<span class="fas fa-chevron-right" />'
      }
    }),
    instantsearch.widgets.configure({
      hitsPerPage: 10,
      query: queryString
    })
  ]);

  // Starting the search
  search.start();
</script>