class OldWay < ActiveRecord::Base
include ConsistencyValidations
+ include ObjectMetadata
self.table_name = "ways"
self.primary_keys = "way_id", "version"
has_many :old_tags, :class_name => 'OldWayTag', :foreign_key => [:way_id, :version]
validates_associated :changeset
-
+
def self.from_way(way)
old_way = OldWay.new
old_way.visible = way.visible
end
def save_with_dependencies!
-
- # dont touch this unless you really have figured out why it's called
- # (Rails doesn't deal well with the old ways table (called 'ways') because
- # it doesn't have a unique key. It knows how to insert and auto_increment
- # id and get it back but we have that and we want to get the 'version' back
- # we could add another column but thats a lot of data. No, set_primary_key
- # doesn't work either.
save!
- clear_aggregation_cache
- clear_association_cache
- @attributes.update(OldWay.where(:way_id => self.way_id, :timestamp => self.timestamp).order("version DESC").first.instance_variable_get('@attributes'))
-
- # ok, you can touch from here on
self.tags.each do |k,v|
tag = OldWayTag.new
end
def nds
- unless @nds
- @nds = Array.new
- OldWayNode.where(:way_id => self.way_id, :version => self.version).order(:sequence_id).each do |nd|
- @nds += [nd.node_id]
- end
- end
- @nds
+ @nds ||= self.old_nodes.order(:sequence_id).collect { |n| n.node_id }
end
def tags
- unless @tags
- @tags = Hash.new
- OldWayTag.where(:way_id => self.way_id, :version => self.version).each do |tag|
- @tags[tag.k] = tag.v
- end
- end
- @tags = Hash.new unless @tags
- @tags
+ @tags ||= Hash[self.old_tags.collect { |t| [t.k, t.v] }]
end
def nds=(s)
@tags = t
end
- def to_xml_node
- el1 = XML::Node.new 'way'
- el1['id'] = self.way_id.to_s
- el1['visible'] = self.visible.to_s
- el1['timestamp'] = self.timestamp.xmlschema
- if self.changeset.user.data_public?
- el1['user'] = self.changeset.user.display_name
- el1['uid'] = self.changeset.user.id.to_s
- end
- el1['version'] = self.version.to_s
- el1['changeset'] = self.changeset.id.to_s
+ def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
+ el = XML::Node.new 'way'
+ el['id'] = self.way_id.to_s
+
+ add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
- el1['redacted'] = self.redaction.id.to_s if self.redacted?
-
self.old_nodes.each do |nd| # FIXME need to make sure they come back in the right order
- e = XML::Node.new 'nd'
- e['ref'] = nd.node_id.to_s
- el1 << e
- end
-
- self.old_tags.each do |tag|
- e = XML::Node.new 'tag'
- e['k'] = tag.k
- e['v'] = tag.v
- el1 << e
+ node_el = XML::Node.new 'nd'
+ node_el['ref'] = nd.node_id.to_s
+ el << node_el
end
- return el1
+ add_tags_to_xml_node(el, self.old_tags)
+
+ return el
end
# Read full version of old way
# For get_nodes_undelete, uses same nodes, even if they've moved since
- # For get_nodes_revert, allocates new ids
+ # For get_nodes_revert, allocates new ids
# Currently returns Potlatch-style array
# where [5] indicates whether latest version is usable as is (boolean)
# (i.e. is it visible? are we actually reverting to an earlier version?)
def get_nodes_undelete
- points = []
- self.nds.each do |n|
+ self.nds.collect do |n|
node = Node.find(n)
- points << [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
+ [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
end
- points
end
-
+
def get_nodes_revert(timestamp)
points=[]
self.nds.each do |n|