include GeoRecord
include ConsistencyValidations
- set_table_name 'nodes'
- set_primary_keys :node_id, :version
+ self.table_name = "nodes"
+ self.primary_keys = "node_id", "version"
+
+ # note this needs to be included after the table name changes, or
+ # the queries generated by Redactable will use the wrong table name.
+ include Redactable
validates_presence_of :changeset_id, :timestamp
validates_inclusion_of :visible, :in => [ true, false ]
validates_associated :changeset
belongs_to :changeset
-
+ belongs_to :redaction
+ belongs_to :current_node, :class_name => "Node", :foreign_key => "node_id"
+
def validate_position
errors.add(:base, "Node is not in the world") unless in_world?
end
return doc
end
- def to_xml_node
+ def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
el1 = XML::Node.new 'node'
el1['id'] = self.node_id.to_s
- el1['lat'] = self.lat.to_s
- el1['lon'] = self.lon.to_s
- el1['changeset'] = self.changeset.id.to_s
- if self.changeset.user.data_public?
- el1['user'] = self.changeset.user.display_name
- el1['uid'] = self.changeset.user.id.to_s
+ el1['version'] = self.version.to_s
+ el1['changeset'] = self.changeset_id.to_s
+
+ if self.visible?
+ el1['lat'] = self.lat.to_s
+ el1['lon'] = self.lon.to_s
+ end
+
+ if changeset_cache.key?(self.changeset_id)
+ # use the cache if available
+ else
+ changeset_cache[self.changeset_id] = self.changeset.user_id
+ end
+
+ user_id = changeset_cache[self.changeset_id]
+
+ if user_display_name_cache.key?(user_id)
+ # use the cache if available
+ elsif self.changeset.user.data_public?
+ user_display_name_cache[user_id] = self.changeset.user.display_name
+ else
+ user_display_name_cache[user_id] = nil
+ end
+
+ if not user_display_name_cache[user_id].nil?
+ el1['user'] = user_display_name_cache[user_id]
+ el1['uid'] = user_id.to_s
end
self.tags.each do |k,v|
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
- el1['version'] = self.version.to_s
+
+ el1['redacted'] = self.redaction.id.to_s if self.redacted?
+
return el1
end
def containing_relation_members
return []
end
+
+ # check whether this element is the latest version - that is,
+ # has the same version as its "current" counterpart.
+ def is_latest_version?
+ current_node.version == self.version
+ end
end