p.string = xml
doc = p.parse
- relation = Relation.new
-
doc.find('//osm/relation').each do |pt|
- if !create and pt['id'] != '0'
- relation.id = pt['id'].to_i
- end
+ return Relation.from_xml_node(pt, create)
+ end
+ rescue
+ return nil
+ end
+ end
- if create
- relation.timestamp = Time.now
- relation.visible = true
- else
- if pt['timestamp']
- relation.timestamp = Time.parse(pt['timestamp'])
- end
- end
+ def self.from_xml_node(pt, create=false)
+ relation = Relation.new
- pt.find('tag').each do |tag|
- relation.add_tag_keyval(tag['k'], tag['v'])
- end
+ if !create and pt['id'] != '0'
+ relation.id = pt['id'].to_i
+ end
- pt.find('member').each do |member|
- relation.add_member(member['type'], member['ref'], member['role'])
- end
+ relation.version = pt['version']
+
+ if create
+ relation.timestamp = Time.now
+ relation.visible = true
+ else
+ if pt['timestamp']
+ relation.timestamp = Time.parse(pt['timestamp'])
end
- rescue
- relation = nil
+ end
+
+ pt.find('tag').each do |tag|
+ relation.add_tag_keyval(tag['k'], tag['v'])
+ end
+
+ pt.find('member').each do |member|
+ relation.add_member(member['type'], member['ref'], member['role'])
end
return relation
el1['id'] = self.id.to_s
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
+ el1['version'] = self.version.to_s
user_display_name_cache = {} if user_display_name_cache.nil?
end
end
+ def delete_with_history(user)
+ if self.visible
+ if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='relation' and member_id=?", self.id ])
+ raise OSM::APIPreconditionFailedError.new
+ else
+ self.user_id = user.id
+ self.tags = []
+ self.members = []
+ self.visible = false
+ save_with_history!
+ end
+ else
+ raise OSM::APIAlreadyDeletedError.new
+ end
+ end
+
+ def update_from(new_relation, user)
+ if !new_relation.preconditions_ok?
+ raise OSM::APIPreconditionFailedError.new
+ elsif new_relation.version != version
+ raise OSM::APIVersionMismatchError.new(new_relation.version, version)
+ else
+ self.user_id = user.id
+ self.tags = new_relation.tags
+ self.members = new_relation.members
+ self.visible = true
+ save_with_history!
+ end
+ end
+
def preconditions_ok?
self.members.each do |m|
if (m[0] == "node")