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