From da39a029c555d3c9ebd8fbdc150b5139ac134ce9 Mon Sep 17 00:00:00 2001
From: manson <manson@rulingcom.com>
Date: Wed, 30 Jul 2014 14:20:29 +0800
Subject: [PATCH] Rescue nil for slug_title

---
 app/models/diploma.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/models/diploma.rb b/app/models/diploma.rb
index 82b7d2e..eab8cf6 100644
--- a/app/models/diploma.rb
+++ b/app/models/diploma.rb
@@ -34,7 +34,7 @@ class Diploma
   end
 
   def slug_title
-    self.school_name+' '+self.department+' '+self.degree
+    [self.school_name,self.department,self.degree].join(' ')
   end
 
   protected