def construct_field_tag(name, value, options={})
      options[:name] = name.to_s
      use_cdata = options.delete(:cdata)

      return "<field#{options.to_xml_attribute_string}>#{use_cdata ? cdata(value) : value}</field>\n"
    end
def construct_field_tag(name, value, options={})
      options[:name] = name.to_s
      use_cdata = options.delete(:cdata)

      return "<field#{options.to_xml_attribute_string}>#{use_cdata ? cdata(value) : value}</field>\n"
    end
creates xml field for given inputs