Access session in Helper file ? Rails 3

Question

how to get session in helper file?

UserHelper.rb

module UsersHelper
  def self.auth login, password
    user = Users.where(\"firstna         


        

Answer 1

Only Controller can access session.

So, in a nutshell, if you are going to use this method in Controllers only like what is you case, you can define it as ApplicationController's method. Or define it a module and include it in AppplicationController.

class ApplicationController < ActionController::Base
  def auth
  end

  def is_auth?
  end
end

If you want to use the method in both controller and view, just declare them as helper_method

class ApplicationController < ActionController::Base
  helper_method :auth, :is_auth?
  def auth
  end

  def is_auth?
  end
end

Ref: http://apidock.com/rails/ActionController/Helpers/ClassMethods/helper_method

Another note: In my opinion it's really not worth the time to build auth system from scratch by yourself. The functionalities are not easy but quite general. There are well baked gems such as Devise, Authlogic. Better to use them.