X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/7609c118843d66c37dd428a2a162a4e15289b6ce..4bf81418db30e7b0a7e9a0d184cea9343ff800e5:/app/models/old_relation.rb

diff --git a/app/models/old_relation.rb b/app/models/old_relation.rb
index d0a03ac25..c36d64572 100644
--- a/app/models/old_relation.rb
+++ b/app/models/old_relation.rb
@@ -31,13 +31,13 @@ class OldRelation < ApplicationRecord
   include Redactable
 
   belongs_to :changeset
-  belongs_to :redaction
-  belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id"
+  belongs_to :redaction, :optional => true
+  belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id", :inverse_of => :old_relations
 
-  has_many :old_members, -> { order(:sequence_id) }, :class_name => "OldRelationMember", :foreign_key => [:relation_id, :version]
-  has_many :old_tags, :class_name => "OldRelationTag", :foreign_key => [:relation_id, :version]
+  has_many :old_members, -> { order(:sequence_id) }, :class_name => "OldRelationMember", :foreign_key => [:relation_id, :version], :inverse_of => :old_relation
+  has_many :old_tags, :class_name => "OldRelationTag", :foreign_key => [:relation_id, :version], :inverse_of => :old_relation
 
-  validates :changeset, :presence => true, :associated => true
+  validates :changeset, :associated => true
   validates :timestamp, :presence => true
   validates :visible, :inclusion => [true, false]
 
@@ -82,7 +82,7 @@ class OldRelation < ApplicationRecord
   end
 
   def tags
-    @tags ||= old_tags.collect { |t| [t.k, t.v] }.to_h
+    @tags ||= old_tags.to_h { |t| [t.k, t.v] }
   end
 
   attr_writer :members, :tags
@@ -99,7 +99,7 @@ class OldRelation < ApplicationRecord
 
   # check whether this element is the latest version - that is,
   # has the same version as its "current" counterpart.
-  def is_latest_version?
+  def latest_version?
     current_relation.version == version
   end
 end