[ci skip] Add missing flash message in block filter example.

Also make all three examples consistent.

1 files changed, 5 insertions, 2 deletions

diff --git a/guides/source/action_controller_overview.md b/guides/source/action_controller_overview.md
index 8ea3859475..a67eba8f7c 100644
--- a/guides/source/action_controller_overview.md
+++ b/guides/source/action_controller_overview.md
@@ -665,7 +665,10 @@ The first is to use a block directly with the *_action methods. The block receiv
 ```ruby
 class ApplicationController < ActionController::Base
   before_action do |controller|
-    redirect_to new_login_url unless controller.send(:logged_in?)
+    unless controller.send(:logged_in?)
+      flash[:error] = "You must be logged in to access this section"
+      redirect_to new_login_url
+    end
   end
 end
 ```
@@ -682,7 +685,7 @@ end
 class LoginFilter
   def self.filter(controller)
     unless controller.send(:logged_in?)
-      controller.flash[:error] = "You must be logged in"
+      controller.flash[:error] = "You must be logged in to access this section"
       controller.redirect_to controller.new_login_url
     end
   end