Extracting Data From a Document's Tree Structure : rexml « XML « Ruby






  1. Ruby
  2. XML
  3. rexml

Extracting Data From a Document's Tree Structure


orders_xml = %{
<orders>
  <order>
    <number>1</number>
    <date>02/10/2008</date>
    <customer>C</customer>
    <items>
      <item upc="0" desc="Roses" qty="240" />
      <item upc="1" desc="Candy" qty="160" />
    </items>
  </order>
</orders>}

require 'rexml/document'
orders = REXML::Document.new(orders_xml)
orders.root.each_element do |order|     # each <order> in <orders>
  order.each_element do |node|          # <customer>, <items>, etc. in <order>
    if node.has_elements?
      node.each_element do |child|      # each <item> in <items>
        puts "#{child.name}: #{child.attributes['desc']}"
      end
    else
      # the contents of <number>, <date>, etc.
      puts "#{node.name}: #{node.text}"
    end
  end
end








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