从模块中获取类名 [英] Get class name from a module

问题描述

如何从模块中获取包含该模块的类的类名？

How I can get from a module the Class name of the class the module is included ?

module ActMethods
  def some_method(*attr_names)
    cls = self.class # this doesn't work 
  end
end

如何加载cls变量加载此模块的类的名称？

How I can get into the cls variable the name of the class to with this module is loaded ?

推荐答案

self.class 确实可以获得调用该方法的对象的类。假设模块包含在类中，这可以是包含模块或其子类的类。如果你真的只想要这个名字，你可以改用 self.class.name 。

self.class does get you the class of the object the method is called on. Assuming the module was included into a class, this either is the class that included the module or a subclass thereof. If you really just want the name, you can use self.class.name instead.

如果你扩展了带有模块的类，你想要获得该类，你可以只做 cls = self （或 cls = name 如果你想把类的名字作为一个字符串）。

If you extended a class with the module and you want to get that class, you can just do cls = self (or cls = name if you want the name of the class as a string).

如果以上都没有帮助，你应该澄清你想要的。

If none of the above helps, you should clarify what you want.

这篇关于从模块中获取类名的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！