AuthLogic controller helpers for multiple sessions

gistfile1.rb

module Application::Controller::Authlogic
  def self.included(base)  
    base.extend Application::Controller::Authlogic::ClassMethods
  end
  
  module ClassMethods    
  end
  
  def current_session(id=nil)
    if User.session_ids.include?(id)
      var = (id.nil? ? "@current_session" : "@current_#{id.to_s}_session")
      return instance_variable_get(var) if instance_variable_defined?(var)
      return instance_variable_set(var, User::Session.find(id))
    else
      return nil
    end
  end

  def current_user(id=nil)
    if User.session_ids.include?(id)
      var = (id.nil? ? "@current_user" : "@current_#{id.to_s}_user")
      return instance_variable_get(var) if instance_variable_defined?(var)
      return instance_variable_set(var, current_session(id) && current_session(id).record)
    else
      return nil
    end    
  end
  
  def current_company(id=nil)
    if User.session_ids.include?(id)
      var = (id.nil? ? "@current_company" : "@current_#{id.to_s}_company")
      return instance_variable_get(var) if instance_variable_defined?(var)
      return instance_variable_set(var, current_user(id).try(:company) )
    else
      return nil
    end    
  end  
  
  def current_ability(id=nil)
    if User.session_ids.include?(id)
      current_user(id).present? ? current_user(id).ability : Ability::Base.new(nil)
    else
      return nil
    end    
  end
end