From 01340c87bd906113b991c6143797439eef99a955 Mon Sep 17 00:00:00 2001
From: Julian Lam <julian.lam@gmail.com>
Date: Wed, 13 Nov 2013 23:08:44 -0500
Subject: [PATCH] handling missing notifications in update script

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

diff --git a/src/upgrade.js b/src/upgrade.js
index 67b349f226..c2d98fbb40 100644
--- a/src/upgrade.js
+++ b/src/upgrade.js
@@ -54,7 +54,9 @@ Upgrade.upgrade = function() {
 								RDB.zrange(key, 0, -1, function(err, nids) {
 									async.each(nids, function(nid, next) {
 										notifications.get(nid, null, function(notif_data) {
-											RDB.zadd(key, notif_data.datetime, nid, next);
+											if (notif_data) {
+												RDB.zadd(key, notif_data.datetime, nid, next);
+											}
 										});
 									}, next);
 								});