discourse/app/assets/javascripts/discourse/routes/full-page-search.js.es6

import { ajax } from 'discourse/lib/ajax';
import { translateResults, getSearchKey, isValidSearchTerm } from "discourse/lib/search";
import PreloadStore from 'preload-store';
import { getTransient, setTransient } from 'discourse/lib/page-tracker';
import { escapeExpression } from 'discourse/lib/utilities';

export default Discourse.Route.extend({
  queryParams: { q: {}, expanded: false, context_id: {}, context: {}, skip_context: {} },

  titleToken() {
    return I18n.t('search.results_page', { term: escapeExpression(this.controllerFor("full-page-search").get('searchTerm')) });
  },

  model(params) {
    const cached = getTransient('lastSearch');
    var args = { q: params.q };
    if (params.context_id && !args.skip_context) {
      args.search_context = {
        type: params.context,
        id: params.context_id
      };
    }

    const searchKey = getSearchKey(args);

    if (cached && cached.data.searchKey === searchKey) {
      // extend expiry
      setTransient('lastSearch', { searchKey, model: cached.data.model }, 5);
      return cached.data.model;
    }

    return PreloadStore.getAndRemove("search", function() {
      if (isValidSearchTerm(params.q)) {
        return ajax("/search", { data: args });
      } else {
        return null;
      }
    }).then(results => {
      const grouped_search_result = results ? results.grouped_search_result : {};
      const model = (results && translateResults(results)) || { grouped_search_result };
      setTransient('lastSearch', { searchKey, model }, 5);
      return model;
    });
  },

  actions: {
    didTransition() {
      this.controllerFor("full-page-search")._showFooter();
      return true;
    }
  }

});