1 class Changeset < ActiveRecord::Base
6 has_many :changeset_tags, :foreign_key => 'id'
13 has_many :old_relations
15 validates_presence_of :user_id, :created_at, :open
17 # Use a method like this, so that we can easily change how we
18 # determine whether a changeset is open, without breaking code in at
24 def self.from_xml(xml, create=false)
32 doc.find('//osm/changeset').each do |pt|
34 cs.created_at = Time.now
37 pt.find('tag').each do |tag|
38 cs.add_tag_keyval(tag['k'], tag['v'])
41 rescue Exception => ex
42 print "noes "+ ex.to_s + "\n"
52 self.changeset_tags.each do |tag|
63 def add_tag_keyval(k, v)
64 @tags = Hash.new unless @tags
71 Changeset.transaction do
72 # fixme update modified_at time?
76 ChangesetTag.transaction do
78 ChangesetTag.delete_all(['id = ?', self.id])
81 tag = ChangesetTag.new
91 doc = OSM::API.new.get_xml_doc
92 doc.root << to_xml_node()
96 def to_xml_node(user_display_name_cache = nil)
97 el1 = XML::Node.new 'changeset'
98 el1['id'] = self.id.to_s
100 user_display_name_cache = {} if user_display_name_cache.nil?
102 if user_display_name_cache and user_display_name_cache.key?(self.user_id)
103 # use the cache if available
104 elsif self.user.data_public?
105 user_display_name_cache[self.user_id] = self.user.display_name
107 user_display_name_cache[self.user_id] = nil
110 el1['user'] = user_display_name_cache[self.user_id] unless user_display_name_cache[self.user_id].nil?
112 self.tags.each do |k,v|
113 el2 = XML::Node.new('tag')
119 el1['created_at'] = self.created_at.xmlschema
120 el1['open'] = self.open.to_s
122 # FIXME FIXME FIXME: This does not include changes yet! There is
123 # currently no changeset_id column in the tables as far as I can tell,
124 # so this is just a scaffold to build on, not a complete to_xml