app controller

authenticate filter ruby

class ApplicationController < ActionController::Base
  protect_from_forgery
  
  before_filter :authenticate, :except => [:login, :notify_member]
  
  def authenticate
    if session[:member_id].nil?
      flash[:alert] = 'You need to login first.'
      redirect_to :controller => 'admin', :action => 'login'
    end  
  end
end