Rails Observer Alternatives for 4.0

Question

With Observers officially removed from Rails 4.0, I\'m curious what other developers are using in their place. (Other than using the extracted gem.) While Observers were cer

Answer 1

Take a look at Concerns

Create a folder in your models directory called concerns. Add a module there:

module MyConcernModule
  extend ActiveSupport::Concern

  included do
    after_save :do_something
  end

  def do_something
     ...
  end
end

Next, include that in the models you wish to run the after_save in:

class MyModel < ActiveRecord::Base
  include MyConcernModule
end

Depending on what you're doing, this might get you close without observers.