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devise_cloudfuji_authenticatable provides single sign-on support for Cloudfuji applications, that use Devise for authentication. It acts as a replacement for the database_authenticatable option that devise provides

For applications running on Cloudfuji, the authentication server provides the following user data:

  • ido_id - a string that is unique to the user
  • email - user's email address
  • first_name - user's first name
  • last_name - user's last name
  • locale - user's locale


  • Rails 2.3 or 3.0
  • Devise 1.0 or greater


gem install --pre devise_cloudfuji_authenticatable

Rails 3.x: Add the following to your Gemfile

gem 'devise'
gem 'devise_cloudfuji_authenticatable'

This has been tested with 3.1 rc5 too. So feel safe to use it :)

Rails 2.3: Add the following in your config/environment.rb

config.gem 'devise', :version => '~> 1.0.6'
config.gem 'devise_cloudfuji_authenticatable'


1.) Add the following to your devise model

attr_accessor :ido_id
devise :cloudfuji_authenticatable

To the devise() method, you can add other modules like trackable, but do not use database_authenticatable. cloudfuji_authenticatable is a replacement for that.

2.) Modify schema migration

Add the field required for the auth to work. For example, if the devise model is called User, add cloudfuji_authenticatable to the schema like below.

create_table :users do |t|

That will add a string field called ido_id, which is unique to each Cloudfuji user.

3.) [OPTIONAL] Add ido_id to be indexed

add_index :users, :ido_id, :unique => true

Extra attributes

When the user is authenticated, Cloudfuji passed along the following extra attributes:

  • email - user's email address
  • first_name - user's first name
  • last_name - user's last name
  • locale - user's locale

If you find any of these attributes useful and want to capture them, add a cloudfuji_extra_attributes method to your User model (or whichever is your devise model). Below is an example that saves the email and the locale of a user.

class User < ActiveRecord::Base
  attr_accessor :ido_id
  devise :cloudfuji_authenticatable
  def cloudfuji_extra_attributes(extra_attributes)
    extra_attributes.each do |name, value|
      case name.to_sym
      when :email = value
      when :locale
        self.locale = value

The example above assumes that you have created fields called "email" and "locale" to save the attributes to. This gem doesn't create that for you. It has to be created manually and are optional.

Note that these attributes might change anytime and are hence passed on as extra attributes. If defined, this method is called whenever the user logs into your app (starts a session). So when any of these are changed, your application will be able to capture those.

It is not advisable to use the user's email address to identify the user. Use the ido_id field for that purpose.


Based on devise_cas_authenticatable by Nat Budin.

Tweaks by:

  • Sean Grove
  • Akash Manohar

[When contributing, add your name above and commit]

See also


  • Test on non-ActiveRecord ORMs


CAS authentication support for Devise



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