website.rb

      Website.reflect_on_all_associations( :has_many ).each do | assoc |
        instance_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
          if #{assoc.name}.first.respond_to?(:to_backup)
            xml.#{assoc.name} do
              #{assoc.name}.each {|collection| xml << collection.to_backup}
            end unless #{assoc.name}.blank?
          end
        RUBY_EVAL
      end