added err to getAllTopics

src/routes/admin.js

@@ -244,7 +244,7 @@ var user = require('./../user.js'),
 			});
 
 			app.get('/topics', function (req, res) {
-				topics.getAllTopics(10, null, function (topics) {
+				topics.getAllTopics(10, null, function (err, topics) {
 					res.json({
 						topics: topics,
 						notopics: topics.length === 0

src/sitemap.js

@@ -43,7 +43,7 @@ var path = require('path'),
 				},
 				function(next) {
 					var topicUrls = [];
-					topics.getAllTopics(null, null, function(topics) {
+					topics.getAllTopics(null, null, function(err, topics) {
 						topics.forEach(function(topic) {
 							if (topic.deleted !== '1') {
 								topicUrls.push({

src/topics.js

@@ -588,6 +588,10 @@ var RDB = require('./redis.js'),
 
 	Topics.getAllTopics = function(limit, after, callback) {
 		RDB.smembers('topics:tid', function(err, tids) {
+			if(err) {
+				return callback(err, null);
+			}
+
 			var topics = [],
 				numTids, x;
 
@@ -623,7 +627,7 @@ var RDB = require('./redis.js'),
 					next();
 				});
 			}, function(err) {
-				callback(topics);
+				callback(err, topics);
 			});
 		});
 	}

src/websockets.js

@@ -861,7 +861,7 @@ module.exports.init = function(io) {
 		});
 
 		socket.on('api:admin.topics.getMore', function(data, callback) {
-			topics.getAllTopics(data.limit, data.after, function(topics) {
+			topics.getAllTopics(data.limit, data.after, function(err, topics) {
 				callback(JSON.stringify(topics));
 			});
 		});