From a4743960a09139c3bd4d72a8f3a72ade8f4add2f Mon Sep 17 00:00:00 2001
From: Mike Mangino <mmangino@elevatedrails.com>
Date: Thu, 28 Mar 2013 11:19:01 -0400
Subject: Raise an exception when unserialization fails due to a missing class

---
 activerecord/lib/active_record/coders/yaml_column.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'activerecord/lib')

diff --git a/activerecord/lib/active_record/coders/yaml_column.rb b/activerecord/lib/active_record/coders/yaml_column.rb
index 8d22942a06..1aa82f20d6 100644
--- a/activerecord/lib/active_record/coders/yaml_column.rb
+++ b/activerecord/lib/active_record/coders/yaml_column.rb
@@ -33,7 +33,8 @@ module ActiveRecord
           obj ||= object_class.new if object_class != Object
 
           obj
-        rescue ArgumentError, Psych::SyntaxError
+        rescue ArgumentError , Psych::SyntaxError => e
+          raise if e.to_s =~ /undefined class/
           yaml
         end
       end
-- 
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