rails - 关注的验证问题

Question

我对验证有疑问有class
/app/models/group.rb

class Group < AbstractModel
  include Localized::Title

  ...

end

/app/models/concerns/localized/title.rb

module Localized::Title
  extend ActiveSupport::Concern
  include ActiveModel::Validations

  include do 
    validates :title_ua, length: {minimum: 3, maximum: 200}, uniqueness: true
    validates :title_ru, length: {minimum: 3, maximum: 200}, uniqueness: true
  end

...

end

当我尝试在模型中使用验证时，它起作用了，但没有关系。请帮助我，我做错了什么？

P.S。抽象模型 < ActiveRecord::Base, rails4.2，ruby2.2.0p0

Answer 1

'included'不包含。像这样尝试：

module Localized::Title
  extend ActiveSupport::Concern
  include ActiveModel::Validations

  included do 
    validates :title_ua, length: {minimum: 3, maximum: 200}, uniqueness: true
    validates :title_ru, length: {minimum: 3, maximum: 200}, uniqueness: true
  end

...

end

rails - 关注的验证问题

rails - problems with validation in concern

ruby-on-rails

validation

activesupport-concern