I can't connect validation via lib, what's wrong?

Question

Ruby on Rails

I read an interesting article on Habr about how to make the model cleaner.
But since the article is a little old, it seems that something needs to be set up with pens.
Article for those who are interested habrahabr.ru/post/125822
Code section that caused difficulties

# lib/models/validations.rb
module Models
  module Validations
    # общий модуль c валидациями для нескольких моделей
  end
end

# lib/models/user/validation.rb
module Models
  module User
    module Validations
      # валидации для модели User
    end
  end
end

# app/models/user.rb
class User < ActiveRecord::Base
  include Models::Validations # Это я убрал за ненадобностью
  include Models::User::Validations
end

Does not find include Models::User::Validations
Tried to turn it on with handles

config.autoload_paths += %W(#{config.root}/lib/models)
config.autoload_paths += %W(#{config.root}/lib/models/**/)

But it didn't work.

Answer 1

And why did the standard dsl from ActiveRecord displease you? several lines of code that are directly related to the model should not be taken out of it.

Answer 2

The last time I connected the code from lib, I also did
Yes, and in rails 4 you can use concerns for this.

Answer 3

Autoload_paths specifies the root directory from which autoload starts searching for a file by module names.
Those. in your case:
In general, it is more logical to move your modules to app/validations. they are part of the application. And you don’t need to write anything to autoload, all app subdirectories are already included there by default