Modified authentication with user_signed_in? and current_user

app/controllers/application_controller.rb

@@ -3,10 +3,24 @@ class ApplicationController < ActionController::Base
   before_action :authenticate
 
   private
+    def current_user
+      Current.user || authenticate_user_from_session
+    end
+    helper_method :current_user
+
+    def authenticate_user_from_session
+      session_record = Session.find_by_id(cookies.signed[:session_token])
+      Current.session = session_record
+      Current.user
+    end
+
+    def user_signed_in?
+      current_user.present?
+    end
+    helper_method :user_signed_in?
+
     def authenticate
-      if session_record = Session.find_by_id(cookies.signed[:session_token])
-        Current.session = session_record
-      else
+      unless user_signed_in?
         redirect_to sign_in_path
       end
     end