From 0473e7f25b57f31849a4fd3b3a974103c9594300 Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Sat, 30 Aug 2014 11:50:45 -0400
Subject: [PATCH 1/3] crash fix

---
 src/topics.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/topics.js b/src/topics.js
index 34fe471163..c34746d477 100644
--- a/src/topics.js
+++ b/src/topics.js
@@ -274,7 +274,9 @@ var async = require('async'),
 							for(var i=0; i<posts.length; ++i) {
 								posts[i].index = start + i;
 							}
-							posts[0].index = 0;
+							if (posts[0]) {
+								posts[0].index = 0;
+							}
 							Topics.addPostData(posts, uid, next);
 						});
 					});

From 73bef8168f0546650a44cf0a233f1522319dbfee Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Sat, 30 Aug 2014 11:54:43 -0400
Subject: [PATCH 2/3] another crash fix

---
 src/topics.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/topics.js b/src/topics.js
index c34746d477..9bde8159be 100644
--- a/src/topics.js
+++ b/src/topics.js
@@ -272,7 +272,9 @@ var async = require('async'),
 							}
 							start = parseInt(start, 10);
 							for(var i=0; i<posts.length; ++i) {
-								posts[i].index = start + i;
+								if (posts[i]) {
+									posts[i].index = start + i;
+								}
 							}
 							if (posts[0]) {
 								posts[0].index = 0;

From 87c8cd2fb0f4757c3d4280a4ba969a008d2f5832 Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Sat, 30 Aug 2014 11:56:29 -0400
Subject: [PATCH 3/3] another crash fix

---
 src/topics/posts.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/topics/posts.js b/src/topics/posts.js
index 98934a2f33..4345a177dd 100644
--- a/src/topics/posts.js
+++ b/src/topics/posts.js
@@ -43,8 +43,12 @@ module.exports = function(Topics) {
 
 	Topics.addPostData = function(postData, uid, callback) {
 		var pids = postData.map(function(post) {
-			return post.pid;
-		});
+			return post && post.pid;
+		}).filter(Boolean);
+
+		if (!Array.isArray(pids) || !pids.length) {
+			return callback(null, []);
+		}
 
 		async.parallel({
 			favourites: function(next) {