NodeBB search.js

'use strict';

var async = require('async');

var meta = require('../meta');
var plugins = require('../plugins');
var search = require('../search');
var categories = require('../categories');
var pagination = require('../pagination');
var helpers = require('./helpers');


var searchController = {};

searchController.search = function(req, res, next) {
    if (!plugins.hasListeners('filter:search.query')) {
        return next();
    }

    if (!req.user && parseInt(meta.config.allowGuestSearching, 10) !== 1) {
        return helpers.notAllowed(req, res);
    }

    var page = Math.max(1, parseInt(req.query.page, 10)) || 1;
    if (req.query.categories && !Array.isArray(req.query.categories)) {
        req.query.categories = [req.query.categories];
    }

    var data = {
        query: req.params.term,
        searchIn: req.query.in || 'posts',
        postedBy: req.query.by,
        categories: req.query.categories,
        searchChildren: req.query.searchChildren,
        replies: req.query.replies,
        repliesFilter: req.query.repliesFilter,
        timeRange: req.query.timeRange,
        timeFilter: req.query.timeFilter,
        sortBy: req.query.sortBy,
        sortDirection: req.query.sortDirection,
        page: page,
        uid: req.uid,
        qs: req.query
    };

    async.parallel({
        categories: async.apply(buildCategories, req.uid),
        search: async.apply(search.search, data)
    }, function(err, results) {
        if (err) {
            return next(err);
        }
        var searchData = results.search;
        searchData.categories = results.categories;
        searchData.categoriesCount = results.categories.length;
        searchData.pagination = pagination.create(page, searchData.pageCount, req.query);
        searchData.showAsPosts = !req.query.showAs || req.query.showAs === 'posts';
        searchData.showAsTopics = req.query.showAs === 'topics';
        searchData.title = '[[global:header.search]]';
        searchData.breadcrumbs = helpers.buildBreadcrumbs([{text: '[[global:search]]'}]);
        searchData.expandSearch = !req.params.term;
        searchData.expandSearch = false;
        res.render('search', searchData);
    });
};

function buildCategories(uid, callback) {
    categories.getCategoriesByPrivilege('cid:0:children', uid, 'read', function(err, categories) {
        if (err) {
            return callback(err);
        }

        var categoriesData = [
            {value: 'all', text: '[[unread:all_categories]]'},
            {value: 'watched', text: '[[category:watched-categories]]'}
        ];

        categories = categories.filter(function(category) {
            return category && !category.link && !parseInt(category.parentCid, 10);
        });

        categories.forEach(function(category) {
            recursive(category, categoriesData, '');
        });
        callback(null, categoriesData);
    });
}


function recursive(category, categoriesData, level) {
    if (category.link) {
        return;
    }

    var bullet = level ? '• ' : '';

    categoriesData.push({
        value: category.cid,
        text: level + bullet + category.name
    });

    category.children.forEach(function(child) {
        recursive(child, categoriesData, '    ' + level);
    });
}

module.exports = searchController;