X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/fc25c3d412829774abf0454e4dcc92e41f47454c..67dd9e4c9d487bdb5f38a09dc0c99def4989326e:/app/models/old_way.rb

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index c2af4f21c..3df0c2d4f 100644
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -1,10 +1,13 @@
 class OldWay < ActiveRecord::Base
   include ConsistencyValidations
-  
-  set_table_name 'ways'
-  set_primary_keys :way_id, :version
+  include Redactable
+
+  self.table_name = "ways"
+  self.primary_keys = "way_id", "version"
 
   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]
@@ -137,7 +140,7 @@ class OldWay < ActiveRecord::Base
       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.node_id] then id=-1; reuse=false end
+        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
@@ -158,4 +161,10 @@ class OldWay < ActiveRecord::Base
   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