X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/322d293007eb75eedae7bd6138dc5abc3143d972..c7bb260b4c7d7b2d98ef1a1d363c0cb12953c333:/app/models/old_way.rb

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index ce856e208..dc5715693 100644
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -5,6 +5,8 @@ class OldWay < ActiveRecord::Base
 
   belongs_to :changeset
 
+  validates_associated :changeset
+  
   def self.from_way(way)
     old_way = OldWay.new
     old_way.visible = way.visible
@@ -28,7 +30,7 @@ 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.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp], :order => "version desc").instance_variable_get('@attributes'))
 
     # ok, you can touch from here on
 
@@ -122,27 +124,29 @@ class OldWay < ActiveRecord::Base
   # 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.visible ? 1 : 0, node.tags_as_hash]
+	  points << [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
     end
 	points
   end
   
-  def get_nodes_revert
+  def get_nodes_revert(timestamp)
     points=[]
     self.nds.each do |n|
-      oldnode=OldNode.find(:first, :conditions=>['id=? AND timestamp<=?',n,self.timestamp], :order=>"timestamp DESC")
+      oldnode=OldNode.find(:first, :conditions=>['id=? AND timestamp<=?',n,timestamp], :order=>"timestamp DESC")
       curnode=Node.find(n)
-      id=n; v=curnode.visible ? 1 : 0
+      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.id] then id=-1; v=nil end
+        if curnode.ways-[self.id] then id=-1; reuse=false end
       end
-      points << [oldnode.lon, oldnode.lat, id, v, oldnode.tags_as_hash]
+      points << [oldnode.lon, oldnode.lat, id, curnode.version, oldnode.tags_as_hash, reuse]
     end
     points
   end