ruby – 在类中包含模块并执行代码

这是我以前的课程

class Something
    # Defines the validates class methods,which is called upon instantiation
    include Module

    validates :name
    validates :date

end

我现在有几个使用相同功能的对象,更糟糕的是,有几个对象定义了类似的东西,如下所示：

class Anotherthing
    # Defines the validates class methods,which is called upon instantiation
    include Module

    validates :age

end

我想“重用”这些类的内容,所以我把它们变成了模块：

module Something
    # Defines the validates class methods  which is called upon instantiation
    include Module

    validates :name
    validates :date

end

module Anotherthing
    # Defines the validates class methods which is called upon instantiation
    include Module

    validates :age

end

我现在可以创建一个类

class ADualClass
   include Something
   include Anotherthing
end

我遇到的问题是,当我创建ADualClass对象时,不会调用validates方法……似乎永远不会调用“validates：thing”.这是为什么？我怎么强迫这个？

解决方法

在您的模块中,您需要定义,例如

def self.included(base)
  base.validates :name
  base.validates :date
end