closes #878

public/src/forum/category.js

@@ -145,7 +145,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 		loadingMoreTopics = true;
 		socket.emit('categories.loadMore', {
 			cid: cid,
-			after: $('#topics-container').children('.category-item').length
+			after: $('#topics-container').attr('data-nextstart')
 		}, function (err, data) {
 			if(err) {
 				return app.alertError(err.message);
@@ -153,6 +153,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 
 			if (data && data.topics.length) {
 				Category.onTopicsLoaded(data.topics);
+				$('#topics-container').attr('data-nextstart', data.nextStart);
 			}
 			loadingMoreTopics = false;
 		});

public/src/forum/recent.js

@@ -86,7 +86,7 @@ define(function() {
 	Recent.loadMoreTopics = function() {
 		loadingMoreTopics = true;
 		socket.emit('topics.loadMoreRecentTopics', {
-			after: $('#topics-container').children('li').length,
+			after: $('#topics-container').attr('data-nextstart'),
 			term: active
 		}, function(err, data) {
 			if(err) {
@@ -95,6 +95,7 @@ define(function() {
 
 			if (data.topics && data.topics.length) {
 				Recent.onTopicsLoaded('recent', data.topics);
+				$('#topics-container').attr('data-nextstart', data.nextStart);
 			}
 
 			loadingMoreTopics = false;

public/src/forum/unread.js

@@ -46,7 +46,7 @@ define(['forum/recent'], function(recent) {
 		function loadMoreTopics() {
 			loadingMoreTopics = true;
 			socket.emit('topics.loadMoreUnreadTopics', {
-				after: parseInt($('#topics-container').attr('data-next-start'), 10)
+				after: $('#topics-container').attr('data-nextstart')
 			}, function(err, data) {
 				if(err) {
 					return app.alertError(err.message);
@@ -54,7 +54,7 @@ define(['forum/recent'], function(recent) {
 
 				if (data.topics && data.topics.length) {
 					recent.onTopicsLoaded('unread', data.topics);
-					$('#topics-container').attr('data-next-start', data.nextStart);
+					$('#topics-container').attr('data-nextstart', data.nextStart);
 				} else {
 					$('#load-more-btn').hide();
 				}

public/templates/category.tpl

@@ -28,7 +28,7 @@
 
 <div class="category row">
 	<div class="{topic_row_size}">
-		<ul id="topics-container" itemscope itemtype="http://www.schema.org/ItemList">
+		<ul id="topics-container" itemscope itemtype="http://www.schema.org/ItemList" data-nextstart="{nextStart}">
 			<meta itemprop="itemListOrder" content="descending">
 			<!-- BEGIN topics -->
 			<li class="category-item {topics.deleted-class}" itemprop="itemListElement">

public/templates/recent.tpl

@@ -21,7 +21,7 @@
 
 <div class="category row">
 	<div class="col-md-12">
-		<ul id="topics-container">
+		<ul id="topics-container" data-nextstart="{nextStart}">
 		<!-- BEGIN topics -->
 		<li class="category-item {topics.deleted-class}">
 			<div class="col-md-12 col-xs-12 panel panel-default topic-row">

public/templates/unread.tpl

@@ -16,7 +16,7 @@
 
 	<div class="category row">
 		<div class="col-md-12">
-			<ul id="topics-container" data-next-start="{nextStart}">
+			<ul id="topics-container" data-nextstart="{nextStart}">
 			<!-- BEGIN topics -->
 			<li class="category-item {topics.deleted-class}">
 				<div class="col-md-12 col-xs-12 panel panel-default topic-row">

src/categories.js

@@ -1,8 +1,8 @@
-var db = require('./database.js'),
-	posts = require('./posts.js'),
-	utils = require('./../public/src/utils.js'),
-	user = require('./user.js'),
-	topics = require('./topics.js'),
+var db = require('./database'),
+	posts = require('./posts'),
+	utils = require('./../public/src/utils'),
+	user = require('./user'),
+	topics = require('./topics'),
 	plugins = require('./plugins'),
 	CategoryTools = require('./categoryTools'),
 	meta = require('./meta'),
@@ -52,8 +52,8 @@ var db = require('./database.js'),
 				return callback(err);
 			}
 
-			function getTopicIds(next) {
-				Categories.getTopicIds(category_id, start, end, next);
+			function getTopics(next) {
+				Categories.getCategoryTopics(category_id, start, end, current_user, next);
 			}
 
 			function getActiveUsers(next) {
@@ -70,9 +70,12 @@ var db = require('./database.js'),
 				Categories.getPageCount(category_id, next);
 			}
 
-			async.parallel([getTopicIds, getActiveUsers, getSidebars, getPageCount], function(err, results) {
-				var tids = results[0],
-					active_users = results[1],
+			async.parallel([getTopics, getActiveUsers, getSidebars, getPageCount], function(err, results) {
+				if(err) {
+					return callback(err);
+				}
+
+				var active_users = results[1],
 					sidebars = results[2],
 					pageCount = results[3];
 
@@ -87,27 +90,22 @@ var db = require('./database.js'),
 					'topic_row_size': 'col-md-9',
 					'category_id': category_id,
 					'active_users': [],
-					'topics': [],
+					'topics': results[0].topics,
+					'nextStart': results[0].nextStart,
 					'pageCount': pageCount,
 					'disableSocialButtons': meta.config.disableSocialButtons !== undefined ? parseInt(meta.config.disableSocialButtons, 10) !== 0 : false,
 					'sidebars': sidebars
 				};
 
-				function getTopics(next) {
-					topics.getTopicsByTids(tids, category_id, current_user, next);
-				}
-
 				function getModerators(next) {
 					Categories.getModerators(category_id, next);
 				}
 
 				function getActiveUsers(next) {
-					user.getMultipleUserFields(active_users, ['uid', 'username', 'userslug', 'picture'], function(err, users) {
-						next(err, users);
-					});
+					user.getMultipleUserFields(active_users, ['uid', 'username', 'userslug', 'picture'], next);
 				}
 
-				if (tids.length === 0) {
+				if (!category.topics.length) {
 					getModerators(function(err, moderators) {
 						category.moderator_block_class = moderators.length > 0 ? '' : 'none';
 						category.moderators = moderators;
@@ -116,11 +114,10 @@ var db = require('./database.js'),
 						callback(null, category);
 					});
 				} else {
-					async.parallel([getTopics, getModerators, getActiveUsers], function(err, results) {
-						category.topics = results[0];
-						category.moderator_block_class = results[1].length > 0 ? '' : 'none';
-						category.moderators = results[1];
-						category.active_users = results[2];
+					async.parallel([getModerators, getActiveUsers], function(err, results) {
+						category.moderator_block_class = results[0].length > 0 ? '' : 'none';
+						category.moderators = results[0];
+						category.active_users = results[1];
 						category.show_sidebar = category.topics.length > 0 ? 'show' : 'hidden';
 						callback(null, category);
 					});
@@ -131,13 +128,26 @@ var db = require('./database.js'),
 	};
 
 	Categories.getCategoryTopics = function(cid, start, stop, uid, callback) {
-		Categories.getTopicIds(cid, start, stop, function(err, tids) {
+		async.waterfall([
+			function(next) {
+				Categories.getTopicIds(cid, start, stop, next);
+			},
+			function(tids, next) {
+				topics.getTopicsByTids(tids, cid, uid, next);
+			},
+			function(topics, next) {
+				db.sortedSetRevRank('categories:' + cid + ':tid', topics[topics.length - 1].tid, function(err, rank) {
 					if(err) {
-				return callback(err);
+						return next(err);
 					}
 
-			topics.getTopicsByTids(tids, cid, uid, callback);
+					return next(null, {
+						topics: topics,
+						nextStart: parseInt(rank, 10) + 1
+					});
 				});
+			}
+		], callback);
 	};
 
 	Categories.getTopicIds = function(cid, start, stop, callback) {

src/socket.io/categories.js

@@ -18,14 +18,10 @@ SocketCategories.loadMore = function(socket, data, callback) {
 
 	var topicsPerPage = parseInt(meta.config.topicsPerPage, 10) || 20;
 
-	var start = data.after,
+	var start = parseInt(data.after, 10),
 		end = start + topicsPerPage - 1;
-
-	categories.getCategoryTopics(data.cid, start, end, socket.uid, function(err, topics) {
-		callback(err, {
-			topics: topics
-		});
-	});
+console.log(start, end);
+	categories.getCategoryTopics(data.cid, start, end, socket.uid, callback);
 };
 
 SocketCategories.getPageCount = function(socket, cid, callback) {

src/socket.io/topics.js

@@ -236,7 +236,7 @@ SocketTopics.loadMore = function(socket, data, callback) {
 	var postsPerPage = parseInt(meta.config.postsPerPage, 10);
 	postsPerPage = postsPerPage ? postsPerPage : 20;
 
-	var start = data.after,
+	var start = parseInt(data.after, 10),
 		end = start + postsPerPage - 1;
 
 	async.parallel({
@@ -256,14 +256,14 @@ SocketTopics.loadMoreRecentTopics = function(socket, data, callback) {
 		return callback(new Error('invalid data'));
 	}
 
-	var start = data.after,
+	var start = parseInt(data.after, 10),
 		end = start + 9;
 
 	topics.getLatestTopics(socket.uid, start, end, data.term, callback);
 };
 
 SocketTopics.loadMoreUnreadTopics = function(socket, data, callback) {
-	var start = data.after,
+	var start = parseInt(data.after, 10),
 		end = start + 9;
 
 	topics.getUnreadTopics(socket.uid, start, end, callback);

src/topics.js

@@ -448,11 +448,7 @@ var async = require('async'),
 
 			async.filter(tids, function(tid, next) {
 				threadTools.privileges(tid, current_user, function(err, privileges) {
-					if (!err && privileges.read) {
-						next(true);
-					} else {
-						next(false);
-					}
+					next(!err && privileges.read);
 				});
 			}, function(tids) {
 				Topics.getTopicsByTids(tids, 0, current_user, function(err, topicData) {
@@ -466,7 +462,7 @@ var async = require('async'),
 					}
 
 					db.sortedSetRevRank('topics:recent', topicData[topicData.length - 1].tid, function(err, rank) {
-						latestTopics.lastIndex = rank;
+						latestTopics.nextStart = parseInt(rank,10) + 1;
 						latestTopics.topics = topicData;
 						callback(null, latestTopics);
 					});
@@ -549,7 +545,7 @@ var async = require('async'),
 							return parseInt(read[index], 10) === 0;
 						});
 
-						// Filter out topics that belong to categories that this user cannot access
+
 						async.filter(newtids, function(tid, next) {
 							threadTools.privileges(tid, uid, function(err, privileges) {
 								if (!err && privileges.read) {
@@ -599,8 +595,14 @@ var async = require('async'),
 					return callback(err);
 				}
 
+				db.sortedSetRevRank('topics:recent', topicData[topicData.length - 1].tid, function(err, rank) {
+					if(err) {
+						return callback(err);
+					}
+
 					unreadTopics.topics = topicData;
-				unreadTopics.nextStart = stop + 1;
+					unreadTopics.nextStart = parseInt(rank, 10) + 1;
+
 					if (!topicData || topicData.length === 0) {
 						unreadTopics.no_topics_message = 'show';
 					}
@@ -610,6 +612,7 @@ var async = require('async'),
 
 					callback(null, unreadTopics);
 				});
+			});
 		}
 
 		Topics.getUnreadTids(uid, start, stop, function(err, unreadTids) {

tests/categories.js

@@ -43,9 +43,9 @@ describe('Categories', function() {
 
 	describe('.getCategoryTopics', function() {
 		it('should return a list of topics', function(done) {
-			Categories.getCategoryTopics(categoryObj.cid, 0, 10, 0, function(err, topics) {
-				assert(Array.isArray(topics));
-				assert(topics.every(function(topic) {
+			Categories.getCategoryTopics(categoryObj.cid, 0, 10, 0, function(err, result) {
+				assert(Array.isArray(result.topics));
+				assert(result.topics.every(function(topic) {
 					return topic instanceof Object;
 				}));