authlogic rails 3 app.rdoc

I’m working on both learning authlogic and Rails 3. The process here works (given the Rails 3.0.0.beta1 gem) for me. There is a list of the many resources I complied this from at the bottom of the document.

Travelers beware: this is incomplete, and possibly even wrong. But between the stuff about scaffolding and binary logic’s example app you should be able to get off your feet.

Basic Application¶ ↑

We assume Rails 3 is installed. We will create a rails app as usual.

rails authtest
cd authest
rails g scaffold post title:string body:text
rails g scaffold user username:string fullname:string is_admin:boolean

Install Authlogic¶ ↑

We need to install from source, because of the latest Authlogic gem’s current incompatibility with Rails 3.

# ./Gemfile
# ...
gem "authlogic", :git => "git://github.com/binarylogic/authlogic.git"

Now, let bundle do its work

bundle install
bundle pack

Get ready for authentication¶ ↑

Create session, and prepare the user class

rails g migration AddAuthToUser crypted_password:string password_salt:string persistence_token:string
rails g scaffold user_session --migration false --parent=Authlogic::Session::Base

Do the session stuff¶ ↑

h

# app/controllers/application.rb
class ApplicationController < ActionController::Base
  filter_parameter_logging :password, :password_confirmation
  helper_method :current_user_session, :current_user

  private
    def current_user_session
      return @current_user_session if defined?(@current_user_session)
      @current_user_session = UserSession.find
    end

    def current_user
      return @current_user if defined?(@current_user)
      @current_user = current_user_session && current_user_session.user
    end
end

Use It¶ ↑

Further Reading¶ ↑

• Rails 3 Beta Release Notes

• Authlogic Documentation

• Authlogic Example