From 038a833125105e20678458d4571d1b6231f696ee Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Mon, 24 Mar 2014 21:53:14 -0400
Subject: [PATCH] check to see if there are topics

---
 src/topics/unread.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/topics/unread.js b/src/topics/unread.js
index f2e7f0dff7..a3e82145e6 100644
--- a/src/topics/unread.js
+++ b/src/topics/unread.js
@@ -76,13 +76,16 @@ module.exports = function(Topics) {
 			topics: []
 		};
 
-		function sendUnreadTopics(topicIds) {
-
-			Topics.getTopicsByTids(topicIds, uid, function(err, topicData) {
-				if(err) {
+		function sendUnreadTopics(tids) {
+			Topics.getTopicsByTids(tids, uid, function(err, topicData) {
+				if (err) {
 					return callback(err);
 				}
 
+				if (!Array.isArray(topicData) || !topicData.length) {
+					return callback(null, unreadTopics);
+				}
+
 				db.sortedSetRevRank('topics:recent', topicData[topicData.length - 1].tid, function(err, rank) {
 					if(err) {
 						return callback(err);