How do you include a class from /lib into your code in app/controllers

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?

There is an answer to a similar question [Rails /lib modules and](http://stackoverflow.com/questions/1073076/rails-lib-modules-and) from @YehudaKatz. — mliebelt, Sep 29 '11 at 15:00

score 10 · Accepted Answer · answered Sep 29 '11 at 15:10

10

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.

answered Sep 29 '11 at 15:10

keithepley

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Is an explicit `include myModule` statement required when `lib` is auto-loaded? – Jonathan Lin Jan 07 '13 at 09:03

score 3 · Answer 2 · answered Sep 29 '11 at 15:02

I believe you need to add an initializer file with the require statement in it, for example if your lib file is /lib/some_module.rb you would need to create an initialiser file in /config/initializers/require_libs.rb...

# /config/initializers/require_libs.rb
require 'some_module'

How do you include a class from /lib into your code in app/controllers

2 Answers2