# File rss/dublincore.rb, line 11
    def append_features(klass)
      super

      return if klass.instance_of?(Module)
      DublinCoreModel::ELEMENT_NAME_INFOS.each do |name, plural_name|
        plural = plural_name || "#{name}s"
        full_name = "#{DC_PREFIX}_#{name}"
        full_plural_name = "#{DC_PREFIX}_#{plural}"
        klass_name = "DublinCore#{Utils.to_class_name(name)}"
        klass.install_must_call_validator(DC_PREFIX, DC_URI)
        klass.install_have_children_element(name, DC_URI, "*",
                                            full_name, full_plural_name)
        klass.module_eval("remove_method :\#{full_name}\nremove_method :\#{full_name}=\nremove_method :set_\#{full_name}\n\ndef \#{full_name}\n@\#{full_name}.first and @\#{full_name}.first.value\nend\n\ndef \#{full_name}=(new_value)\n@\#{full_name}[0] = Utils.new_with_value_if_need(\#{klass_name}, new_value)\nend\nalias set_\#{full_name} \#{full_name}=\n", *get_file_and_line_from_caller(0))
      end
      klass.module_eval("alias date \#{DC_PREFIX}_date\nalias date= \#{DC_PREFIX}_date=\n", *get_file_and_line_from_caller(0))
    end