Getting Started Snipped for https://niallburkley.com/blog/ruby-publish-subscribe/ blog post

ruby-publish-subscribe_getting_started.rb

class Post < ActiveRecord::Base
  after_commit :notify_editors,     on: :create
  after_commit :generate_feed_item, on: :create

  private
  def notify_editors
    EditorMailer.send_notification(self).deliver_later
  end

  def generate_feed_item
    FeedItem.create(self)
  end

end