From 765a04cc6e96d09e9e0448976708eba5024f186d Mon Sep 17 00:00:00 2001
From: Luke Gruber <lgruber@mentel.com>
Date: Tue, 24 Apr 2012 14:35:19 -0400
Subject: [PATCH] fix population of folders instance var on init

---
 lib/enhance/enhancer.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/enhance/enhancer.rb b/lib/enhance/enhancer.rb
index a82635c..d8652ec 100644
--- a/lib/enhance/enhancer.rb
+++ b/lib/enhance/enhancer.rb
@@ -16,7 +16,8 @@ def initialize app, root, options = {}
     @app = app
     @extensions = [options[:extensions]].flatten || %w( jpg png jpeg gif )
     @routes = options[:routes] || %w( images )
-    @folders = [options[:folders]].flatten || [File.join(root, "public")]
+    @folders = [options[:folders]].flatten.compact
+    @folders = [File.join(root, "public")] if @folders.blank?
     @quality = options[:quality] || 100
     @command_path = options[:convert_path] || "#{Paperclip.options[:command_path] if defined?(Paperclip)}"
     @command_path += "/" unless @command_path.empty?