Ruby on rails RubyonRails：从关注点调用类方法

在Rails中，可以从包含关注点的类调用方法吗？即：

class Foo < ApplicationRecord
  include Encryptable

  def self.encrypted_attributes
     %i[attr_1 attr_2]
  end
end

module Encryptable
  extend ActiveSupport::Concern

  included do
    self.encrypted_attributes do |attr|
      define_method("#{attr}=") do |arg|
        # do some stuff
      end

      define_method("#{attr}") do
        # do some stuff
      end
    end
  end
end

---

Ruby是一种脚本语言，顺序很重要。以下是可以做到的：

class Foo < ApplicationRecord
  def self.encrypted_attributes
     %i[attr_1 attr_2]
  end

  # OK, now we have self.encrypted_attributes defined
  include Encryptable
end

class Foo

---

更多信息：。

的确如此。非常感谢。

class Foo < ApplicationRecord
  def self.encrypted_attributes
     %i[attr_1 attr_2]
  end

  # OK, now we have self.encrypted_attributes defined
  include Encryptable
end