Upgraded to Rails 2.1. This can have wide ranging consequences, so please help track down any issues introduced by the upgrade. Requires environment.rb modifications.

Changes you will need to make:

 * In your environment.rb, you will need to update references to a few files per environment.rb.tmpl
 * In your environment.rb, you will need to specify the local time zone of the computer that is running your Tracks install.

Other notes on my changes:

 * Modified our code to take advantage of Rails 2.1's slick time zone support.
 * Upgraded will_paginate for compatibility
 * Hacked the Selenium on Rails plugin, which has not been updated in some time and does not support Rails 2.1
 * Verified that all tests pass on my machine, including Selenium tests -- I'd like confirmation from others, too.

vendor/rails/actionpack/test/activerecord/active_record_store_test.rb

@@ -1,9 +1,8 @@
 # These tests exercise CGI::Session::ActiveRecordStore, so you're going to
 # need AR in a sibling directory to AP and have SQLite installed.
-require File.dirname(__FILE__) + '/../active_record_unit'
+require 'active_record_unit'
 require 'action_controller/session/active_record_store'
 
-
 module CommonActiveRecordStoreTests
   def test_basics
     s = session_class.new(:session_id => '1234', :data => { 'foo' => 'bar' })
@@ -66,7 +65,7 @@ class ActiveRecordStoreTest < ActiveRecordTestCase
 
   def test_save_unloaded_session
     c = session_class.connection
-    bogus_class = c.quote(Base64.encode64("\004\010o:\vBlammo\000"))
+    bogus_class = c.quote(ActiveSupport::Base64.encode64("\004\010o:\vBlammo\000"))
     c.insert("INSERT INTO #{session_class.table_name} ('#{session_id_column}', 'data') VALUES ('abcdefghijklmnop', #{bogus_class})")
 
     sess = session_class.find_by_session_id('abcdefghijklmnop')

vendor/rails/actionpack/test/activerecord/render_partial_with_record_identification_test.rb

@@ -1,39 +1,49 @@
-require File.dirname(__FILE__) + '/../active_record_unit'
+require 'active_record_unit'
+
+class RenderPartialWithRecordIdentificationController < ActionController::Base
+  def render_with_has_many_and_belongs_to_association
+    @developer = Developer.find(1)
+    render :partial => @developer.projects
+  end
+
+  def render_with_has_many_association
+    @topic = Topic.find(1)
+    render :partial => @topic.replies
+  end
+
+  def render_with_named_scope
+    render :partial => Reply.base
+  end
+
+  def render_with_has_many_through_association
+    @developer = Developer.find(:first)
+    render :partial => @developer.topics
+  end
+
+  def render_with_has_one_association
+    @company = Company.find(1)
+    render :partial => @company.mascot
+  end
+
+  def render_with_belongs_to_association
+    @reply = Reply.find(1)
+    render :partial => @reply.topic
+  end
+
+  def render_with_record
+    @developer = Developer.find(:first)
+    render :partial => @developer
+  end
+
+  def render_with_record_collection
+    @developers = Developer.find(:all)
+    render :partial => @developers
+  end
+end
+RenderPartialWithRecordIdentificationController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
 
 class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
-  fixtures :developers, :projects, :developers_projects, :topics, :replies
-
-  class RenderPartialWithRecordIdentificationController < ActionController::Base
-    def render_with_has_many_and_belongs_to_association
-      @developer = Developer.find(1)
-      render :partial => @developer.projects
-    end
-    
-    def render_with_has_many_association
-      @topic = Topic.find(1)
-      render :partial => @topic.replies
-    end
-    
-    def render_with_has_many_through_association
-      @developer = Developer.find(:first)
-      render :partial => @developer.topics
-    end
-    
-    def render_with_belongs_to_association
-      @reply = Reply.find(1)
-      render :partial => @reply.topic
-    end
-    
-    def render_with_record
-      @developer = Developer.find(:first)
-      render :partial => @developer
-    end
-    
-    def render_with_record_collection
-      @developers = Developer.find(:all)
-      render :partial => @developers
-    end
-  end
+  fixtures :developers, :projects, :developers_projects, :topics, :replies, :companies, :mascots
   
   def setup
     @controller = RenderPartialWithRecordIdentificationController.new
@@ -52,14 +62,9 @@ class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
     assert_template 'replies/_reply'
   end
   
-  def test_rendering_partial_with_has_many_association
-    get :render_with_has_many_through_association
-    assert_template 'topics/_topic'
-  end
-  
-  def test_rendering_partial_with_belongs_to_association
-    get :render_with_belongs_to_association
-    assert_template 'topics/_topic'
+  def test_rendering_partial_with_named_scope
+    get :render_with_named_scope
+    assert_template 'replies/_reply'
   end
   
   def test_render_with_record
@@ -71,4 +76,116 @@ class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
     get :render_with_record_collection
     assert_template 'developers/_developer'
   end
+
+  def test_rendering_partial_with_has_one_association
+    mascot = Company.find(1).mascot
+    get :render_with_has_one_association
+    assert_template 'mascots/_mascot'
+    assert_equal mascot.name, @response.body
+  end
 end
+
+class RenderPartialWithRecordIdentificationController < ActionController::Base
+  def render_with_has_many_and_belongs_to_association
+    @developer = Developer.find(1)
+    render :partial => @developer.projects
+  end
+
+  def render_with_has_many_association
+    @topic = Topic.find(1)
+    render :partial => @topic.replies
+  end
+
+  def render_with_has_many_through_association
+    @developer = Developer.find(:first)
+    render :partial => @developer.topics
+  end
+
+  def render_with_belongs_to_association
+    @reply = Reply.find(1)
+    render :partial => @reply.topic
+  end
+
+  def render_with_record
+    @developer = Developer.find(:first)
+    render :partial => @developer
+  end
+
+  def render_with_record_collection
+    @developers = Developer.find(:all)
+    render :partial => @developers
+  end
+end
+RenderPartialWithRecordIdentificationController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+
+class Game < Struct.new(:name, :id)
+  def to_param
+    id.to_s
+  end
+end
+
+module Fun
+  class NestedController < ActionController::Base
+    def render_with_record_in_nested_controller
+      render :partial => Game.new("Pong")
+    end
+
+    def render_with_record_collection_in_nested_controller
+      render :partial => [ Game.new("Pong"), Game.new("Tank") ]
+    end
+  end
+  NestedController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+
+  module Serious
+    class NestedDeeperController < ActionController::Base
+      def render_with_record_in_deeper_nested_controller
+        render :partial => Game.new("Chess")
+      end
+
+      def render_with_record_collection_in_deeper_nested_controller
+        render :partial => [ Game.new("Chess"), Game.new("Sudoku"), Game.new("Solitaire") ]
+      end
+    end
+    NestedDeeperController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+  end
+end
+
+class RenderPartialWithRecordIdentificationAndNestedControllersTest < ActiveRecordTestCase
+  def setup
+    @controller = Fun::NestedController.new
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+    super
+  end
+
+  def test_render_with_record_in_nested_controller
+    get :render_with_record_in_nested_controller
+    assert_template 'fun/games/_game'
+  end
+
+  def test_render_with_record_collection_in_nested_controller
+    get :render_with_record_collection_in_nested_controller
+    assert_template 'fun/games/_game'
+  end
+
+end
+
+class RenderPartialWithRecordIdentificationAndNestedDeeperControllersTest < ActiveRecordTestCase
+  def setup
+    @controller = Fun::Serious::NestedDeeperController.new
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+    super
+  end
+
+  def test_render_with_record_in_deeper_nested_controller
+    get :render_with_record_in_deeper_nested_controller
+    assert_template 'fun/serious/games/_game'
+  end
+
+  def test_render_with_record_collection_in_deeper_nested_controller
+    get :render_with_record_collection_in_deeper_nested_controller
+    assert_template 'fun/serious/games/_game'
+  end
+
+end