From 391f978acdf9b4789f9ac301a72b99e05ace64f1 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 10 Aug 2009 11:58:44 -0500
Subject: AMo overrides alias_attribute and manages aliasing all known
 attribute method matchers

---
 activemodel/lib/active_model/attribute_methods.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'activemodel/lib/active_model')

diff --git a/activemodel/lib/active_model/attribute_methods.rb b/activemodel/lib/active_model/attribute_methods.rb
index 1ae042e00f..1091ad3095 100644
--- a/activemodel/lib/active_model/attribute_methods.rb
+++ b/activemodel/lib/active_model/attribute_methods.rb
@@ -133,6 +133,16 @@ module ActiveModel
         undefine_attribute_methods
       end
 
+      def alias_attribute(new_name, old_name)
+        attribute_method_matchers.each do |matcher|
+          module_eval <<-STR, __FILE__, __LINE__+1
+            def #{matcher.method_name(new_name)}(*args)
+              send(:#{matcher.method_name(old_name)}, *args)
+            end
+          STR
+        end
+      end
+
       def define_attribute_methods(attr_names)
         return if attribute_methods_generated?
         attr_names.each do |attr_name|
-- 
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