localized_validator.rb

module Mongoid
  module Localizable
    class LocalizedValidator < ActiveModel::EachValidator
      def validate_each record, attribute, value
        if options[:mode] == :only_default
          record.errors[:attribute] << (options[:message] || :blank) unless record.send("has_#{attribute}_translation?", I18n.default_locale)
        end
      end
    end
  end
end