@tags[k] = v
end
+ ##
+ # the integer coords (i.e: unscaled) bounding box of the way, assuming
+ # straight line segments.
+ def bbox
+ lons = nodes.collect { |n| n.longitude }
+ lats = nodes.collect { |n| n.latitude }
+ [ lons.min, lats.min, lons.max, lats.max ]
+ end
+
def save_with_history!
t = Time.now
+ # update the bounding box, but don't save it as the controller knows the
+ # lifetime of the change better. note that this has to be done both before
+ # and after the save, so that nodes from both versions are included in the
+ # bbox.
+ changeset.update_bbox!(bbox) unless nodes.empty?
+
Way.transaction do
self.version += 1
self.timestamp = t
old_way = OldWay.from_way(self)
old_way.timestamp = t
old_way.save_with_dependencies!
+
+ # update and commit the bounding box, now that way nodes
+ # have been updated and we're in a transaction.
+ changeset.update_bbox!(bbox) unless nodes.empty?
+ changeset.save!
end
end