Question

I have a class sitting in /lib folder.
It’s in a file called mailing.rb

And I would like to use this class in codes from app/controller.

How do i do this?

Answer 1

Rails 3 no longer automatically loads the files from lib.

In your application.rb file, you can add lib to your autoload_paths:

config.autoload_paths += Dir["#{Rails.root}/lib"]

This way, your mailer.rb and all other files in lib will be available to the rest of your application.