1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/test/models/comment.rb b/activerecord/test/models/comment.rb
index 6a9dfacf56..ea261ac9ec 100644
--- a/activerecord/test/models/comment.rb
+++ b/activerecord/test/models/comment.rb
@@ -26,6 +26,10 @@ class Comment < ActiveRecord::Base
     all
   end
   scope :all_as_scope, -> { all }
+
+  def to_s
+    body
+  end
 end
 
 class SpecialComment < Comment
@@ -37,3 +41,11 @@ end
 class VerySpecialComment < Comment
   scope :special_parent, -> (special_rating) { where parent_id: special_rating.special_comment.id }
 end
+
+class CommentThatAutomaticallyAltersPostBody < Comment
+  belongs_to :post, class_name: "PostThatLoadsCommentsInAnAfterSaveHook", foreign_key: :post_id
+
+  after_save do |comment|
+    comment.post.update_attributes(body: "Automatically altered")
+  end
+end