From 6a20d127725d6493998b55bb6473ec7b35a34713 Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Fri, 27 Feb 2015 13:22:52 +1100
Subject: [PATCH] don't fail serializing if title is missing

---
 app/serializers/post_revision_serializer.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/serializers/post_revision_serializer.rb b/app/serializers/post_revision_serializer.rb
index 0565a1a0032..1f8c07adf58 100644
--- a/app/serializers/post_revision_serializer.rb
+++ b/app/serializers/post_revision_serializer.rb
@@ -112,8 +112,10 @@ class PostRevisionSerializer < ApplicationSerializer
   end
 
   def title_changes
-    prev = "<div>#{CGI::escapeHTML(previous["title"])}</div>"
-    cur = "<div>#{CGI::escapeHTML(current["title"])}</div>"
+
+    prev = "<div>#{previous["title"] && CGI::escapeHTML(previous["title"])}</div>"
+    cur = "<div>#{current["title"] && CGI::escapeHTML(current["title"])}</div>"
+
     return if prev == cur
 
     diff = DiscourseDiff.new(prev, cur)