From ba13e398e35c5da4e519799c4cdaf136ef897682 Mon Sep 17 00:00:00 2001
From: John Bintz <john@coswellproductions.com>
Date: Fri, 15 Mar 2013 11:12:24 -0400
Subject: [PATCH] make sure the thing has a url to work with

---
 lib/formtastic-better_file_inputs/file_field_input.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/formtastic-better_file_inputs/file_field_input.rb b/lib/formtastic-better_file_inputs/file_field_input.rb
index 8da6a94..ca11b24 100644
--- a/lib/formtastic-better_file_inputs/file_field_input.rb
+++ b/lib/formtastic-better_file_inputs/file_field_input.rb
@@ -23,7 +23,7 @@ class FileFieldInput < Formtastic::Inputs::FileInput
     result = ''
 
     if source = builder.object.send(method)
-      if @url = source.url
+      if source.respond_to?(:url) and @url = source.url
         result = preview << remove_checkbox << url_display
       end
     end