X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/52e5fa6ad78f375cec5a207a123a4aa3939c8ddf..10e92b85a730836abe2d7c0564da0b5c55154f95:/app/models/old_relation.rb

diff --git a/app/models/old_relation.rb b/app/models/old_relation.rb
index 87771caab..9f80a81b9 100644
--- a/app/models/old_relation.rb
+++ b/app/models/old_relation.rb
@@ -1,12 +1,19 @@
 class OldRelation < ActiveRecord::Base
   include ConsistencyValidations
+  include ObjectMetadata
   
-  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_members, -> { order(:sequence_id) }, :class_name => 'OldRelationMember', :foreign_key => [:relation_id, :version]
   has_many :old_tags, :class_name => 'OldRelationTag', :foreign_key => [:relation_id, :version]
   
   validates_associated :changeset
@@ -55,7 +62,7 @@ class OldRelation < ActiveRecord::Base
   def members
     unless @members
       @members = Array.new
-      OldRelationMember.where(:relation_id => self.relation_id, :version => self.version).order(:sequence_id).each do |m|
+      self.old_members.order(:sequence_id).each do |m|
         @members += [[m.type,m.id,m.role]]
       end
     end
@@ -65,7 +72,7 @@ class OldRelation < ActiveRecord::Base
   def tags
     unless @tags
       @tags = Hash.new
-      OldRelationTag.where(:relation_id => self.relation_id, :version => self.version).each do |tag|
+      self.old_tags.each do |tag|
         @tags[tag.k] = tag.v
       end
     end
@@ -87,33 +94,23 @@ class OldRelation < ActiveRecord::Base
     return doc
   end
 
-  def to_xml_node
-    el1 = XML::Node.new 'relation'
-    el1['id'] = self.relation_id.to_s
-    el1['visible'] = self.visible.to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-    if self.changeset.user.data_public?
-      el1['user'] = self.changeset.user.display_name
-      el1['uid'] = self.changeset.user.id.to_s
-    end
-    el1['version'] = self.version.to_s
-    el1['changeset'] = self.changeset_id.to_s
-    
+  def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
+    el = XML::Node.new 'relation'
+    el['id'] = self.relation_id.to_s
+
+    add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
+
     self.old_members.each do |member|
-      e = XML::Node.new 'member'
-      e['type'] = member.member_type.to_s.downcase
-      e['ref'] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
-      e['role'] = member.member_role.to_s
-      el1 << e
+      member_el = XML::Node.new 'member'
+      member_el['type'] = member.member_type.to_s.downcase
+      member_el['ref'] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
+      member_el['role'] = member.member_role.to_s
+      el << member_el
     end
- 
-    self.old_tags.each do |tag|
-      e = XML::Node.new 'tag'
-      e['k'] = tag.k
-      e['v'] = tag.v
-      el1 << e
-    end
-    return el1
+    
+    add_tags_to_xml_node(el, self.old_tags)
+
+    return el
   end
 
   # Temporary method to match interface to nodes
@@ -130,4 +127,10 @@ 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