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refactor: controllers/category.js
This commit is contained in:
Baris Usakli
@@ -1,178 +1,133 @@
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'use strict';
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var async = require('async');
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var nconf = require('nconf');
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const nconf = require('nconf');
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var db = require('../database');
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var privileges = require('../privileges');
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var user = require('../user');
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var categories = require('../categories');
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var meta = require('../meta');
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var pagination = require('../pagination');
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var helpers = require('./helpers');
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var utils = require('../utils');
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var translator = require('../translator');
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var analytics = require('../analytics');
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const db = require('../database');
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const privileges = require('../privileges');
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const user = require('../user');
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const categories = require('../categories');
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const meta = require('../meta');
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const pagination = require('../pagination');
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const helpers = require('./helpers');
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const utils = require('../utils');
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const translator = require('../translator');
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const analytics = require('../analytics');
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var categoryController = module.exports;
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const categoryController = module.exports;
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categoryController.get = function (req, res, callback) {
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var cid = req.params.category_id;
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var currentPage = parseInt(req.query.page, 10) || 1;
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var pageCount = 1;
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var userPrivileges;
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var settings;
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var rssToken;
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categoryController.get = async function (req, res, next) {
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const cid = req.params.category_id;
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if ((req.params.topic_index && !utils.isNumber(req.params.topic_index)) || !utils.isNumber(cid)) {
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return callback();
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return next();
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}
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var topicIndex = utils.isNumber(req.params.topic_index) ? parseInt(req.params.topic_index, 10) - 1 : 0;
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const [categoryFields, userPrivileges, userSettings, rssToken] = await Promise.all([
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categories.getCategoryFields(cid, ['slug', 'disabled', 'topic_count']),
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privileges.categories.get(cid, req.uid),
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user.getSettings(req.uid),
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user.auth.getFeedToken(req.uid),
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]);
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async.waterfall([
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function (next) {
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async.parallel({
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categoryData: function (next) {
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categories.getCategoryFields(cid, ['slug', 'disabled', 'topic_count'], next);
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},
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privileges: function (next) {
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privileges.categories.get(cid, req.uid, next);
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},
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userSettings: function (next) {
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user.getSettings(req.uid, next);
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},
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rssToken: function (next) {
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user.auth.getFeedToken(req.uid, next);
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},
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}, next);
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},
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function (results, next) {
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userPrivileges = results.privileges;
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rssToken = results.rssToken;
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if (!categoryFields.slug || (categoryFields && categoryFields.disabled)) {
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return next();
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}
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if (!results.categoryData.slug || (results.categoryData && results.categoryData.disabled)) {
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return callback();
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}
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if (!userPrivileges.read) {
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return helpers.notAllowed(req, res);
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}
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if (!results.privileges.read) {
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return helpers.notAllowed(req, res);
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}
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if (!res.locals.isAPI && (!req.params.slug || categoryFields.slug !== cid + '/' + req.params.slug) && (categoryFields.slug && categoryFields.slug !== cid + '/')) {
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return helpers.redirect(res, '/category/' + categoryFields.slug);
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}
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if (!res.locals.isAPI && (!req.params.slug || results.categoryData.slug !== cid + '/' + req.params.slug) && (results.categoryData.slug && results.categoryData.slug !== cid + '/')) {
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return helpers.redirect(res, '/category/' + results.categoryData.slug);
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}
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const topicCount = categoryFields.topic_count;
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let topicIndex = utils.isNumber(req.params.topic_index) ? parseInt(req.params.topic_index, 10) - 1 : 0;
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if (topicIndex < 0 || topicIndex > Math.max(topicCount - 1, 0)) {
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return helpers.redirect(res, '/category/' + cid + '/' + req.params.slug + (topicIndex > topicCount ? '/' + topicCount : ''));
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}
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const pageCount = Math.max(1, Math.ceil(topicCount / userSettings.topicsPerPage));
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let currentPage = parseInt(req.query.page, 10) || 1;
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if (userSettings.usePagination && (currentPage < 1 || currentPage > pageCount)) {
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return next();
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}
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settings = results.userSettings;
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if (!userSettings.usePagination) {
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topicIndex = Math.max(0, topicIndex - (Math.ceil(userSettings.topicsPerPage / 2) - 1));
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} else if (!req.query.page) {
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const index = Math.max(parseInt((topicIndex || 0), 10), 0);
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currentPage = Math.ceil((index + 1) / userSettings.topicsPerPage);
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topicIndex = 0;
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}
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var topicCount = results.categoryData.topic_count;
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pageCount = Math.max(1, Math.ceil(topicCount / settings.topicsPerPage));
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const targetUid = await user.getUidByUserslug(req.query.author);
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const start = ((currentPage - 1) * userSettings.topicsPerPage) + topicIndex;
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const stop = start + userSettings.topicsPerPage - 1;
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if (topicIndex < 0 || topicIndex > Math.max(topicCount - 1, 0)) {
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return helpers.redirect(res, '/category/' + cid + '/' + req.params.slug + (topicIndex > topicCount ? '/' + topicCount : ''));
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}
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const categoryData = await categories.getCategoryById({
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uid: req.uid,
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cid: cid,
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start: start,
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stop: stop,
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sort: req.query.sort || userSettings.categoryTopicSort,
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settings: userSettings,
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query: req.query,
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tag: req.query.tag,
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targetUid: targetUid,
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});
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if (!categoryData) {
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return next();
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}
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categories.modifyTopicsByPrivilege(categoryData.topics, userPrivileges);
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if (categoryData.link) {
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await db.incrObjectField('category:' + categoryData.cid, 'timesClicked');
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return helpers.redirect(res, categoryData.link);
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}
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await buildBreadcrumbs(req, categoryData);
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if (categoryData.children.length) {
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const allCategories = [];
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categories.flattenCategories(allCategories, categoryData.children);
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await categories.getRecentTopicReplies(allCategories, req.uid);
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}
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if (settings.usePagination && (currentPage < 1 || currentPage > pageCount)) {
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return callback();
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}
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categoryData.title = translator.escape(categoryData.name);
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categoryData.description = translator.escape(categoryData.description);
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categoryData.privileges = userPrivileges;
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categoryData.showSelect = userPrivileges.editable;
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categoryData.rssFeedUrl = nconf.get('url') + '/category/' + categoryData.cid + '.rss';
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if (parseInt(req.uid, 10)) {
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categories.markAsRead([cid], req.uid);
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categoryData.rssFeedUrl += '?uid=' + req.uid + '&token=' + rssToken;
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}
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if (!settings.usePagination) {
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topicIndex = Math.max(0, topicIndex - (Math.ceil(settings.topicsPerPage / 2) - 1));
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} else if (!req.query.page) {
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var index = Math.max(parseInt((topicIndex || 0), 10), 0);
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currentPage = Math.ceil((index + 1) / settings.topicsPerPage);
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topicIndex = 0;
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}
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addTags(categoryData, res);
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user.getUidByUserslug(req.query.author, next);
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},
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function (targetUid, next) {
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var start = ((currentPage - 1) * settings.topicsPerPage) + topicIndex;
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var stop = start + settings.topicsPerPage - 1;
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categories.getCategoryById({
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uid: req.uid,
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cid: cid,
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start: start,
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stop: stop,
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sort: req.query.sort || settings.categoryTopicSort,
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settings: settings,
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query: req.query,
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tag: req.query.tag,
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targetUid: targetUid,
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}, next);
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},
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function (categoryData, next) {
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if (!categoryData) {
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return callback();
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}
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categories.modifyTopicsByPrivilege(categoryData.topics, userPrivileges);
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categoryData['feeds:disableRSS'] = meta.config['feeds:disableRSS'];
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categoryData['reputation:disabled'] = meta.config['reputation:disabled'];
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if (categoryData.link) {
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db.incrObjectField('category:' + categoryData.cid, 'timesClicked');
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return helpers.redirect(res, categoryData.link);
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}
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categoryData.pagination = pagination.create(currentPage, pageCount, req.query);
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categoryData.pagination.rel.forEach(function (rel) {
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rel.href = nconf.get('url') + '/category/' + categoryData.slug + rel.href;
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res.locals.linkTags.push(rel);
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});
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buildBreadcrumbs(req, categoryData, next);
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},
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function (categoryData, next) {
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if (!categoryData.children.length) {
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return next(null, categoryData);
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}
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analytics.increment(['pageviews:byCid:' + categoryData.cid]);
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var allCategories = [];
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categories.flattenCategories(allCategories, categoryData.children);
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categories.getRecentTopicReplies(allCategories, req.uid, function (err) {
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next(err, categoryData);
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});
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},
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function (categoryData) {
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categoryData.description = translator.escape(categoryData.description);
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categoryData.privileges = userPrivileges;
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categoryData.showSelect = categoryData.privileges.editable;
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categoryData.rssFeedUrl = nconf.get('url') + '/category/' + categoryData.cid + '.rss';
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if (parseInt(req.uid, 10)) {
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categories.markAsRead([cid], req.uid);
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categoryData.rssFeedUrl += '?uid=' + req.uid + '&token=' + rssToken;
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}
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addTags(categoryData, res);
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categoryData['feeds:disableRSS'] = meta.config['feeds:disableRSS'];
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categoryData['reputation:disabled'] = meta.config['reputation:disabled'];
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categoryData.title = translator.escape(categoryData.name);
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pageCount = Math.max(1, Math.ceil(categoryData.topic_count / settings.topicsPerPage));
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categoryData.pagination = pagination.create(currentPage, pageCount, req.query);
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categoryData.pagination.rel.forEach(function (rel) {
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rel.href = nconf.get('url') + '/category/' + categoryData.slug + rel.href;
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res.locals.linkTags.push(rel);
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});
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analytics.increment(['pageviews:byCid:' + categoryData.cid]);
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res.render('category', categoryData);
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},
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], callback);
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res.render('category', categoryData);
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};
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function buildBreadcrumbs(req, categoryData, callback) {
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var breadcrumbs = [
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async function buildBreadcrumbs(req, categoryData) {
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const breadcrumbs = [
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{
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text: categoryData.name,
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url: nconf.get('relative_path') + '/category/' + categoryData.slug,
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},
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];
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async.waterfall([
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function (next) {
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helpers.buildCategoryBreadcrumbs(categoryData.parentCid, next);
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},
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function (crumbs, next) {
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if (req.originalUrl.startsWith(nconf.get('relative_path') + '/api/category') || req.originalUrl.startsWith(nconf.get('relative_path') + '/category')) {
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categoryData.breadcrumbs = crumbs.concat(breadcrumbs);
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}
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next(null, categoryData);
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},
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], callback);
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const crumbs = await helpers.buildCategoryBreadcrumbs(categoryData.parentCid);
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if (req.originalUrl.startsWith(nconf.get('relative_path') + '/api/category') || req.originalUrl.startsWith(nconf.get('relative_path') + '/category')) {
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categoryData.breadcrumbs = crumbs.concat(breadcrumbs);
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}
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}
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function addTags(categoryData, res) {
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