Complete Lesson 33 Part 1

app/controllers/application_controller.rb

@@ -1,2 +1,12 @@
 class ApplicationController < ActionController::Base
+  def current_user
+    @current_user ||= User.find(session[:user_id]) if session[:user_id]
+  end
+  helper_method :current_user
+
+  def require_signin
+    unless current_user
+      redirect_to new_session_url, alert: "Please sign in first!"
+    end
+  end
 end

app/controllers/users_controller.rb

@@ -1,4 +1,6 @@
 class UsersController < ApplicationController
+  before_action :require_signin, except: [:new, :create]
+
   def index
     @users = User.all
   end

app/helpers/application_helper.rb

@@ -1,5 +1,2 @@
 module ApplicationHelper
-  def current_user
-    @current_user ||= User.find(session[:user_id]) if session[:user_id]
-  end
 end