- def self.from_xml(xml, create=false)
- begin
- p = XML::Parser.new
- p.string = xml
- doc = p.parse
-
- way = Way.new
-
- doc.find('//osm/way').each do |pt|
- if !create and pt['id'] != '0'
- way.id = pt['id'].to_i
- end
-
- if create
- way.timestamp = Time.now
- way.visible = true
- else
- if pt['timestamp']
- way.timestamp = Time.parse(pt['timestamp'])
- end
- end
-
- pt.find('tag').each do |tag|
- way.add_tag_keyval(tag['k'], tag['v'])
- end
-
- pt.find('nd').each do |nd|
- way.add_nd_num(nd['ref'])
- end
- end
- rescue
- way = nil
+ validates :id, :uniqueness => true, :presence => { :on => :update },
+ :numericality => { :on => :update, :only_integer => true }
+ validates :version, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :changeset_id, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :timestamp, :presence => true
+ validates :changeset, :associated => true
+ validates :visible, :inclusion => [true, false]
+
+ scope :visible, -> { where(:visible => true) }
+ scope :invisible, -> { where(:visible => false) }
+
+ # Read in xml as text and return it's Way object representation
+ def self.from_xml(xml, create: false)
+ p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR)
+ doc = p.parse
+ pt = doc.find_first("//osm/way")
+
+ if pt
+ Way.from_xml_node(pt, :create => create)
+ else
+ raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/way element.")