## page controller
def save_article
  # TODO: validate the HTML coming in with hpricot

  # validate that the user is logged in
  unless logged_in?
    # save this request in the session for after login
    session[:r_request] = request
    session[:r_controller] = params[:controller]
    session[:r_action] = params[:action]

    # raise the NotLoggedIn exception to capture the login
    return raise(NotLoggedIn)
  end

  # (article revision saved here)

end

## account controller

  def login
    session[:user] = User.first(:email=>params[:email], :password=>params[:password])
    if logged_in?
      flash[:notice] = "Welcome back, " + session[:user].name[/(\w\w\w+)/,1] + '!'

      # was this called from a NotLoggedIn exception?
      # if so, pick up where we left off
      unless session[:r_request].nil?
        r_request = session[:r_request]
        r_controller = session[:r_controller]
        r_action = session[:r_action]
        session[:r_request] = nil
        session[:r_controller] = nil
        session[:r_action] = nil

        # copy merb's dispather to run the original request
        controller = Object.full_const_get(r_controller.to_const_string).new(r_request, 200)
        controller._dispatch(r_action.to_sym)
        return controller.body#.to_yaml #(debuging)
      else
        return redirect(url(:home))
      end
    end

    flash[:error] = "Your login did not succeed, please try again."
    redirect url(:home)
  end