Encapsulates the common pattern of:
alias_method :foo_without_feature, :foo
alias_method :foo, :foo_with_feature
With this, you simply do:
alias_method_chain :foo, :feature
替我们定义了两个方法：foo_with_feature 和 foo_without_feature <保存原来的foo方法>
def foo_with_feature
在此添加想向foo方法里面写的代码
foo_with ...
评论排行榜