我正在尝试使用自定义验证方法 validate_as_email 扩展 ActiveRecord,以便我可以像这样使用它:
I'm trying to extend ActiveRecord with the custom validation method validate_as_email so i could use it like this:
class User < ActiveRecord::Base validates_as_email :email end我在这里找到了关于如何扩展 ActiveRecord::Base 类的描述:guides.rubyonrails/activerecord_validations_callbacks.html它说你必须在 config/initializers/{myfile}.rb 下创建一个 *.rb 类.
I found description on how to extend ActiveRecord::Base class here: guides.rubyonrails/activerecord_validations_callbacks.html It says you have to create a *.rb class under config/initializers/{myfile}.rb.
ActiveRecord::Base.class_eval do def self.validates_as_email(attr_name) validate is_email_fn(attr_name) end end接下来我必须做什么才能在我的模型中使用 validates_as_email 以及我应该在哪里放置 is_email_fn() 函数.
What do I have to do next so I could use validates_as_email in my model and where should I put is_email_fn() function.
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