Ruby on Rails

my code looks like this:

xml.instruct!

xml.county(name: @jurisdiction.name, id: @jurisdiction.jurisdictionID) do

  xml.officials do

    @officials.each do |official|

      xml.official do

        xml.firstname official.firstname

        xml.lastname official.lastname

        xml.eotypeID eotypeID: official.eotypeID

        xml.eotype EoType.find(official.eotypeID).name

        xml.sourceID sourceID: official.sourceID

        xml.source SourceType.find(official.sourceID).name

      end

    end

  end

end

which produces this:

<county name="Some Town" id="9999999999">

  <officials>

    <official>

      <firstname>Hector</firstname>

      <lastname>Someone</lastname>

      <eotypeID eotypeID="1"/>

      <eotype>Primary</eotype>

      <sourceID sourceID="1"/>

      <source>State Web Site</source>

    </official>

    <official>

      <firstname>Lucy</firstname>

      <lastname>Someone-Else</lastname>

      <eotypeID eotypeID="3"/>

      <eotype>Registration</eotype>

      <sourceID sourceID="6"/>

      <source>History</source>

    </official>

  </officials>

</county>

I would like to change it to produce this:

<county name="Some Town" id="9999999999">

  <officials>

    <official>

      <firstname>Hector</firstname>

      <lastname>Someone</lastname>

      <eotypeID eotypeID="1"/>

      <eotype>Primary</eotype>

      <sourceID sourceID="1"/>

      <source>Web Site</source>

    </official>

    <official>

      <firstname>Lucy</firstname>

      <lastname>Someone-Else</lastname>

      <eotype eotypeID="3">Registration</eotype>

      <source sourceID="6">History</source>

    </official>

  </officials>

</county>

I cannot find any documentation or examples on the point. Can someone offer a helpful hint or point to some useful documentation that covers the subject, where the primary point is this:  Using XML Builder, or some other facility, how does one emit an element instance that has both attributes and non-empty content?  There are losts of ways to do it with brute force; just trying to find an "elegant" solution.

Thanks for any suggestions