- validates_length_of :k, :within => 1..255
- validates_length_of :v, :within => 1..255
-
- # Turn this Node in to an XML Node without the <osm> wrapper.
- def to_xml_node
- el1 = XML::Node.new "preference"
- el1["k"] = k
- el1["v"] = v
-
- el1
- end
+ validates :user, :associated => true
+ validates :k, :v, :length => 1..255, :characters => true