How to deal with vendor/plugins after upgrading to rails 3.2.1

Question

After upgrading to rails3.2.1,this warning occurs:

You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them

Answer 1

I just went through this and found that you just have to go through each plugin to check a few things:

• Is it a gem on rubygems? If so, just stick it in your Gemfile and delete from vendor/plugins
• If no gem is available, or the gem is old, take the folder in vendor/plugins and move it to lib/plugins

One thing I ran across is that you then need to require all those plugins manually. Here is the initializer I created and placed in config/initializers/plugins.rb:

Dir[Rails.root.join('lib', 'plugins', '*')].each do |plugin|
  next if File.basename(plugin) == 'initializers'

  lib = File.join(plugin, 'lib')
  $LOAD_PATH.unshift lib

  begin
    require File.join(plugin, 'init.rb')
  rescue LoadError
    begin
      require File.join(lib, File.basename(plugin) + '.rb')
    rescue LoadError
      require File.join(lib, File.basename(plugin).underscore + '.rb')
    end
  end

  initializer = File.join(File.dirname(plugin), 'initializers', File.basename(plugin) + '.rb')
  require initializer if File.exists?(initializer)
end

I also had the problem of initializers I needed for some of the plugins, so I moved those particular initializers into the lib/plugins/initializers folder. You have to name them the name of the plugin, so an initializer for the my_plugin plugin would have to be in the file lib/plugins/initializers/my_plugin.rb

Hope this helps!