app/controllers/users_controller.rb

     1class UsersController < ApplicationController
     2  # Be sure to include AuthenticationSystem in Application Controller instead
     3  include AuthenticatedSystem
     4  
     5
     6  # render new.rhtml
     7  def new
     8  end
     9
    10  def create
    11    cookies.delete :auth_token
    12    # protects against session fixation attacks, wreaks havoc with 
    13    # request forgery protection.
    14    # uncomment at your own risk
    15    # reset_session
    16    @user = User.new(params[:user])
    17    @user.save
    18    if @user.errors.empty?
    19      self.current_user = @user
    20      redirect_back_or_default('/')
    21      flash[:notice] = "Thanks for signing up!"
    22    else
    23      render :action => 'new'
    24    end
    25  end
    26
    27end