X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/c11d961f624cb610c4b8184d24e522b2c093d1ea..cabdb651913e0a1acddc8887150e202e9d5d6aa4:/app/models/old_way.rb?ds=sidebyside diff --git a/app/models/old_way.rb b/app/models/old_way.rb index 062604253..bc114d73a 100644 --- a/app/models/old_way.rb +++ b/app/models/old_way.rb @@ -1,14 +1,30 @@ class OldWay < ActiveRecord::Base - set_table_name 'ways' + include ConsistencyValidations - belongs_to :user + self.table_name = "ways" + self.primary_keys = "way_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 + + belongs_to :changeset + belongs_to :redaction + belongs_to :current_way, :class_name => "Way", :foreign_key => "way_id" + + has_many :old_nodes, :class_name => 'OldWayNode', :foreign_key => [: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.user_id = way.user_id + old_way.visible = way.visible + old_way.changeset_id = way.changeset_id old_way.timestamp = way.timestamp - old_way.id = way.id - old_way.segs = way.segs + old_way.way_id = way.id + old_way.version = way.version + old_way.nds = way.nds old_way.tags = way.tags return old_way end @@ -24,7 +40,7 @@ class OldWay < ActiveRecord::Base save! clear_aggregation_cache clear_association_cache - @attributes.update(OldWay.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes')) + @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 @@ -32,69 +48,129 @@ class OldWay < ActiveRecord::Base tag = OldWayTag.new tag.k = k tag.v = v - tag.id = self.id + tag.way_id = self.way_id tag.version = self.version tag.save! end - i = 0 - self.segs.each do |n| - seg = OldWaySegment.new - seg.id = self.id - seg.segment_id = n - seg.version = self.version - seg.save! + sequence = 1 + self.nds.each do |n| + nd = OldWayNode.new + nd.id = [self.way_id, self.version, sequence] + nd.node_id = n + nd.save! + sequence += 1 end end - def segs - @segs = Array.new unless @segs - @segs + 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 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 end - def segs=(s) - @segs = s + def nds=(s) + @nds = s end def tags=(t) @tags = t end -# has_many :way_segments, :class_name => 'OldWaySegment', :foreign_key => 'id' -# has_many :way_tags, :class_name => 'OldWayTag', :foreign_key => 'id' - - def old_segments - OldWaySegment.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version]) - end - - def old_tags - OldWayTag.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version]) - end - def to_xml_node el1 = XML::Node.new 'way' - el1['id'] = self.id.to_s + el1['id'] = self.way_id.to_s el1['visible'] = self.visible.to_s el1['timestamp'] = self.timestamp.xmlschema - el1['user'] = self.user.display_name if self.user.data_public? + 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 + + el1['redacted'] = self.redaction.id.to_s if self.redacted? - self.old_segments.each do |seg| # FIXME need to make sure they come back in the right order - e = XML::Node.new 'seg' - e['id'] = seg.segment_id.to_s + 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 end + return el1 - end + 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 + # 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| + node = Node.find(n) + points << [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| + oldnode = OldNode.where('node_id = ? AND timestamp <= ?', n, timestamp).unredacted.order("timestamp DESC").first + curnode = Node.find(n) + id = n; reuse = curnode.visible + if oldnode.lat != curnode.lat or oldnode.lon != curnode.lon or oldnode.tags != curnode.tags then + # node has changed: if it's in other ways, give it a new id + if curnode.ways-[self.way_id] then id=-1; reuse=false end + end + points << [oldnode.lon, oldnode.lat, id, curnode.version, oldnode.tags_as_hash, reuse] + end + points + end + + # Temporary method to match interface to nodes + def tags_as_hash + return self.tags + end + + # Temporary method to match interface to ways + def way_nodes + return self.old_nodes + end + + # Pretend we're not in any relations + 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_way.version == self.version + end end