Ruby on rails - Helper method - undefined method `log_in' in Ruby on rails

Question

I am implementing login based on Michael Hartl\'s Ruby on Rails Tutorial 3rd Edition. Stuck in chapter 8.

Defining a new log_in helper function in Ses

Answer 1

You are missing the ApplicationController part here which includes the helper in the controller so its methods can be accessible directly:

class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
  include SessionsHelper
end