Disabling eager loading effectively prevents autoloading.

Disabling eager loading effectively prevents autoloading

#install 3.1.1rc1
joerafaniello@:~/Code/playground/rails_3_1_stable$ gem install rails --pre
Successfully installed activesupport-3.1.1.rc1
Successfully installed activemodel-3.1.1.rc1
Successfully installed actionpack-3.1.1.rc1
Successfully installed activerecord-3.1.1.rc1
Successfully installed activeresource-3.1.1.rc1
Successfully installed actionmailer-3.1.1.rc1
Successfully installed railties-3.1.1.rc1
Successfully installed rails-3.1.1.rc1
8 gems installed
joerafaniello@:~/Code/playground/rails_3_1_stable$ rails -v
Rails 3.1.1.rc1
joerafaniello@:~/Code/playground/rails_3_1_stable$ rails new .
       exist  
      create  README
      create  Rakefile
      create  config.ru
      create  .gitignore
      create  Gemfile
      create  app
      create  app/assets/images/rails.png
      create  app/assets/javascripts/application.js
      create  app/assets/stylesheets/application.css
      create  app/controllers/application_controller.rb
      create  app/helpers/application_helper.rb
      create  app/mailers
      create  app/models
      create  app/views/layouts/application.html.erb
      create  app/mailers/.gitkeep
      create  app/models/.gitkeep
      create  config
      create  config/routes.rb
      create  config/application.rb
      create  config/environment.rb
      create  config/environments
      create  config/environments/development.rb
      create  config/environments/production.rb
      create  config/environments/test.rb
      create  config/initializers
      create  config/initializers/backtrace_silencers.rb
      create  config/initializers/inflections.rb
      create  config/initializers/mime_types.rb
      create  config/initializers/secret_token.rb
      create  config/initializers/session_store.rb
      create  config/initializers/wrap_parameters.rb
      create  config/locales
      create  config/locales/en.yml
      create  config/boot.rb
      create  config/database.yml
      create  db
      create  db/seeds.rb
      create  doc
      create  doc/README_FOR_APP
      create  lib
      create  lib/tasks
      create  lib/tasks/.gitkeep
      create  lib/assets
      create  lib/assets/.gitkeep
      create  log
      create  log/.gitkeep
      create  public
      create  public/404.html
      create  public/422.html
      create  public/500.html
      create  public/favicon.ico
      create  public/index.html
      create  public/robots.txt
      create  script
      create  script/rails
      create  test/fixtures
      create  test/fixtures/.gitkeep
      create  test/functional
      create  test/functional/.gitkeep
      create  test/integration
      create  test/integration/.gitkeep
      create  test/unit
      create  test/unit/.gitkeep
      create  test/performance/browsing_test.rb
      create  test/test_helper.rb
      create  tmp/cache
      create  tmp/cache/assets
      create  vendor/assets/stylesheets
      create  vendor/assets/stylesheets/.gitkeep
      create  vendor/plugins
      create  vendor/plugins/.gitkeep
         run  bundle install
Fetching source index for http://rubygems.org/
Using rake (0.9.2) 
Using multi_json (1.0.3) 
Using activesupport (3.1.1.rc1) 
Using builder (3.0.0) 
Using i18n (0.6.0) 
Using activemodel (3.1.1.rc1) 
Using erubis (2.7.0) 
Using rack (1.3.3) 
Using rack-cache (1.0.3) 
Using rack-mount (0.8.3) 
Using rack-test (0.6.1) 
Using hike (1.2.1) 
Using tilt (1.3.3) 
Using sprockets (2.0.0) 
Using actionpack (3.1.1.rc1) 
Using mime-types (1.16) 
Using polyglot (0.3.2) 
Using treetop (1.4.10) 
Using mail (2.3.0) 
Using actionmailer (3.1.1.rc1) 
Using arel (2.2.1) 
Using tzinfo (0.3.29) 
Using activerecord (3.1.1.rc1) 
Using activeresource (3.1.1.rc1) 
Using bundler (1.0.18) 
Using coffee-script-source (1.1.2) 
Using execjs (1.2.9) 
Using coffee-script (2.2.0) 
Using rack-ssl (1.3.2) 
Using rdoc (3.9.4) 
Using thor (0.14.6) 
Using railties (3.1.1.rc1) 
Using coffee-rails (3.1.1) 
Using jquery-rails (1.0.14) 
Using json (1.6.1) 
Using rails (3.1.1.rc1) 
Using sass (3.1.7) 
Using sass-rails (3.1.2) 
Installing sqlite3 (1.3.4) with native extensions 
Using uglifier (1.0.3) 
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.

joerafaniello@:~/Code/playground/rails_3_1_stable$ rails g model user
      invoke  active_record
      create    db/migrate/20110927153927_create_users.rb
      create    app/models/user.rb
      invoke    test_unit
      create      test/unit/user_test.rb
      create      test/fixtures/users.yml
joerafaniello@:~/Code/playground/rails_3_1_stable$ rake db:migrate
==  CreateUsers: migrating ====================================================
-- create_table(:users)
   -> 0.0011s
==  CreateUsers: migrated (0.0012s) ===========================================

# Check autoloading...
joerafaniello@:~/Code/playground/rails_3_1_stable$ rails c
Loading development environment (Rails 3.1.1.rc1)
ruby-1.8.7-p352 :001 > User
 => User(id: integer, created_at: datetime, updated_at: datetime) 
# Works
ruby-1.8.7-p352 :002 > exit

# Now, disable eager loading since I don't want my production system eager loading.
# add   config.eager_load_paths = [] to application.rb
joerafaniello@:~/Code/playground/rails_3_1_stable$ nano config/application.rb 

# Now, autoloading of all directories in app is disabled because eager_load_paths is empty
joerafaniello@:~/Code/playground/rails_3_1_stable$ rails c
Loading development environment (Rails 3.1.1.rc1)
ruby-1.8.7-p352 :001 > User
NameError: uninitialized constant User
	from (irb):1
ruby-1.8.7-p352 :002 > exit

# Now, dup the eager_load_paths and set autoload_paths to it before disabling eager_load_paths, ie, 
#    config.autoload_paths = config.eager_load_paths.dup
#    config.eager_load_paths = []

joerafaniello@:~/Code/playground/rails_3_1_stable$ nano config/application.rb 
joerafaniello@:~/Code/playground/rails_3_1_stable$ rails c
Loading development environment (Rails 3.1.1.rc1)
ruby-1.8.7-p352 :001 > User
 => User(id: integer, created_at: datetime, updated_at: datetime) 

# Now it works???