ruby-on-rails - 基于模型名称的 Rails 命名空间问题

Question

我正在寻找针对特定于模型的某些功能子集的关注点。
我引用了here并遵循这种模式

module ModelName::ConcernName
  extend ActiveSupport::Concern

  included do
    # class macros
  end

  # instance methods
  def some_instance_method

  end

  module ClassMethods
    # class methods here, self included
  end
end

但是，当我尝试启动服务器时，会导致以下错误

Circular dependency detected while autoloading constant ModelName::ConcernName

我想知道对模型的某些子集功能进行关注的最佳方法是什么。

编辑

提供模型代码:
路径:app/models/rent.rb

现在我的模型中有很多检查逻辑

class Rent < ActiveRecord::Base
    def pricing_ready?
        # check if pricing is ready
    end

    def photos_ready?
        # check if photo is ready
    end

    def availability_ready?
        # check if availability setting is ready
    end

    def features_ready?
        # check if features are set
    end
end

我想把它分开

class Rent < ActiveRecord::Base
    include Rent::Readiness
end

并按命名空间组织关注点
路径:app/models/concerns/rent/readiness.rb

module Rent::Readiness
  extend ActiveSupport::Concern

  included do
    # class macros
  end

  # instance methods
  def pricing_ready?
    # check if pricing is ready
  end

  ...

  module ClassMethods
    # class methods here, self included
  end
end

现在，如果我只上课 RentReadiness 就可以了 app/models/concerns/rent_readiness.rb 中的路径

Answer 1

您可以将其范围限定为 Rents并发送至concerns/rents/readiness.rb :

module Rents
  module Readiness
    extend ActiveSupport::Concern

    included do
      # class macros
    end
  end
end

在模型中:

class Rent < ActiveRecord::Base
  include Rents::Readiness
end