ruby-on-rails - 如何处理 ActiveModel 的翻译？

Question

我正在使用 Rails 3.1.1，我想正确翻译 ActiveModel 的错误消息。我不知道覆盖 i18n_scope 是否是解决我的问题的正确方法(或者是否有其他方法)，但是 official documentation说:

i18n_scope()

Returns the i18n_scope for the class. Overwrite if you want custom lookup.

... 我应该如何覆盖 i18n_scope？

此时我收到以下“警报”:

# Note the 'activemodel' part
translation missing: de.activemodel.errors.models.my_class.attributes.message.blank

# I would like to "map" translations to 'de.activerecord.errors.messages.blank'
# as made for all other ActiveRecord classes in my application

---

我的 ActiveModel 类如下所示:

class MyClass
  include ActiveModel::Conversion
  include ActiveModel::Validations
  include ActiveModel::Dirty
  extend  ActiveModel::Naming
  extend  ActiveModel::Translation

  validates :name, :presence => true

  ...
end

Answer 1

应该是类方法，类比AR code :

class MyClass
  include ActiveModel ...
  class << self
    def i18n_scope
      :activerecord
    end
  end
end