Revert "Added ActiveRecord::Base#last_modified to work with the new fresh_when/stale? conditional get methods from Action Pack"

Needless indirection with no added value.

This reverts commit 535853e83b.

actionpack/lib/action_controller/metal/conditional_get.rb

@@ -23,7 +23,7 @@ module ActionController
     # This will render the show template if the request isn't sending a matching etag or
     # If-Modified-Since header and just a <tt>304 Not Modified</tt> response if there's a match.
     #
-    # You can also just pass a record where last_modified will be set by calling last_modified and the etag by passing the object itself. Example:
+    # You can also just pass a record where last_modified will be set by calling updated_at and the etag by passing the object itself. Example:
     #
     #   def show
     #     @article = Article.find(params[:id])
@@ -42,7 +42,7 @@ module ActionController
         options.assert_valid_keys(:etag, :last_modified, :public)
       else
         record  = record_or_options
-        options = { :etag => record, :last_modified => record.try(:last_modified) }.merge(additional_options)
+        options = { :etag => record, :last_modified => record.try(:updated_at) }.merge(additional_options)
       end
 
       response.etag          = options[:etag]          if options[:etag]

actionpack/test/controller/render_test.rb

@@ -51,7 +51,7 @@ class TestController < ActionController::Base
   end
 
   def conditional_hello_with_record
-    record = Struct.new(:last_modified, :cache_key).new(Time.now.utc.beginning_of_day, "foo/123")
+    record = Struct.new(:updated_at, :cache_key).new(Time.now.utc.beginning_of_day, "foo/123")
     
     if stale?(record)
       render :action => 'hello_world'
@@ -65,7 +65,7 @@ class TestController < ActionController::Base
   end
 
   def conditional_hello_with_public_header_with_record
-    record = Struct.new(:last_modified, :cache_key).new(Time.now.utc.beginning_of_day, "foo/123")
+    record = Struct.new(:updated_at, :cache_key).new(Time.now.utc.beginning_of_day, "foo/123")
 
     if stale?(record, :public => true)
       render :action => 'hello_world'

activerecord/CHANGELOG.md

@@ -1,6 +1,5 @@
 ## Rails 3.2.0 (unreleased) ##
 
-*   Added ActiveRecord::Base#last_modified to work with the new fresh_when/stale? conditional get methods from Action Pack *DHH*
 
 *   Implemented ActiveRecord::Relation#pluck method
 

activerecord/lib/active_record/base.rb

@@ -1702,13 +1702,6 @@ MSG
         end
       end
 
-      # By default returns the value of the updated_at attribute, but can be overwritten to 
-      # provide another indicator of when this record was last updated. This is used by
-      # ActionControllers conditional get fresh_when/stale? methods.
-      def last_modified
-        self[:updated_at]
-      end
-
       def quoted_id #:nodoc:
         quote_value(id, column_for_attribute(self.class.primary_key))
       end