autoload_paths不知道命名空间？

Question

在app/services,我有一些课,as Notification::Finder和Notification::Builder.

他们被安置为app/services/notification/builder.rb和app/services/notification/finder.rb.

还有Notification班级作为模特,在app/models/notification.rb

autoload_path的配置如下所示 config.autoload_paths += %W(#{config.root}/app/services)

当我尝试加载时Finder,它的工作原理:

Loading development environment (Rails 3.2.9)
[1] pry(main)> Notification::Finder
=> Notification::Finder

但是当我尝试时Builder,我遇到了rails自动加载的问题:

Loading development environment (Rails 3.2.9)
[1] pry(main)> Notification::Builder
=> ActiveRecord::Associations::Builder

它只是忽略了当常量名称(Builder)已被其他命名空间定义时我使用的命名空间,ActiveRecord::Associations::Builder而是取而代之.

这是预期的行为还是铁轨错误？

更详细,const_missing方法activesupport/dependencies.rb收到一个const_name 'Builder',和nesting.inspect => 'nil'.

好奇当我使用constantize时,它按预期结算:

Loading development environment (Rails 3.2.9)
[1] pry(main)> 'Notification::Builder'.constantize
=> Notification::Builder

(Rails在github上发布:https://github.com/rails/rails/issues/8726)

Answer 1

ActiveRecord::Associations::Builder 是 Rails 中的一个模块。如果你有一个Notification::Builder，你可以询问它的类：

>> Notification::Builder
=> ActiveRecord::Associations::Builder
>> Notification::Builder.class
=> Module
>> Notification::Builder.ancestors
=> [ActiveRecord::Associations::Builder]

这是预期的行为吗？

是的

好吧，那么...你有什么选择？

• 您可以使用与 Builder 不同的术语。就像工厂一样。或通知::NotificationBuilder

更多信息：
* http://www.rubydoc.info/docs/rails/3.1.1/ActiveRecord/Associations/Builder/Association
* http://apidock.com/rails/ActiveRecord/Associations/Builder