X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/fc25c3d412829774abf0454e4dcc92e41f47454c..0330e109437fdcb8fbfdd112492699607b507d4c:/app/models/old_relation.rb

diff --git a/app/models/old_relation.rb b/app/models/old_relation.rb
index 87771caab..20651f622 100644
--- a/app/models/old_relation.rb
+++ b/app/models/old_relation.rb
@@ -1,10 +1,16 @@
 class OldRelation < ActiveRecord::Base
   include ConsistencyValidations
   
-  set_table_name 'relations'
-  set_primary_keys :relation_id, :version
+  self.table_name = "relations"
+  self.primary_keys = "relation_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_relation, :class_name => "Relation", :foreign_key => "relation_id"
 
   has_many :old_members, :class_name => 'OldRelationMember', :foreign_key => [:relation_id, :version], :order => :sequence_id
   has_many :old_tags, :class_name => 'OldRelationTag', :foreign_key => [:relation_id, :version]
@@ -130,4 +136,10 @@ class OldRelation < 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_relation.version == self.version
+  end
 end