From af64ac4e5ce8406137d5520fa88e8f652ab703e9 Mon Sep 17 00:00:00 2001
From: Oscar Del Ben <info@oscardelben.com>
Date: Mon, 14 Nov 2011 16:56:05 +0100
Subject: [PATCH] use any? instead of !empty?

---
 activemodel/lib/active_model/dirty.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/activemodel/lib/active_model/dirty.rb b/activemodel/lib/active_model/dirty.rb
index 166cccf161..026f077ee7 100644
--- a/activemodel/lib/active_model/dirty.rb
+++ b/activemodel/lib/active_model/dirty.rb
@@ -98,7 +98,7 @@ module ActiveModel
     #   person.name = 'bob'
     #   person.changed? # => true
     def changed?
-      !changed_attributes.empty?
+      changed_attributes.any?
     end
 
     # List of attributes with unsaved changes.