+
+ respond_to do |format|
+ format.xml
+ format.json
+ end
+ end
+
+ private
+
+ ##
+ # Check if the current user has exceed the rate limit for comments
+ def rate_limit_exceeded?
+ recent_comments = current_user.changeset_comments.where("created_at >= ?", Time.now.utc - 1.hour).count
+
+ recent_comments >= current_user.max_changeset_comments_per_hour