X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/59280377bf40b900a2d340474dd94dcec5abea3f..091473602b61f013c5daa369fb63143802a630c5:/app/models/old_relation.rb

diff --git a/app/models/old_relation.rb b/app/models/old_relation.rb
index 34d76ff9c..b2e86c930 100644
--- a/app/models/old_relation.rb
+++ b/app/models/old_relation.rb
@@ -93,37 +93,50 @@ class OldRelation < ActiveRecord::Base
     return doc
   end
 
-  def to_xml_node
+  def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
     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
+
+    if changeset_cache.key?(self.changeset_id)
+      # use the cache if available
+    else
+      changeset_cache[self.changeset_id] = self.changeset.user_id
+    end
+
+    user_id = changeset_cache[self.changeset_id]
+
+    if user_display_name_cache.key?(user_id)
+      # use the cache if available
+    elsif self.changeset.user.data_public?
+      user_display_name_cache[user_id] = self.changeset.user.display_name
+    else
+      user_display_name_cache[user_id] = nil
+    end
+
+    if not user_display_name_cache[user_id].nil?
+      el1['user'] = user_display_name_cache[user_id]
+      el1['uid'] = user_id.to_s
+    end
+    
+    el1['redacted'] = self.redaction.id.to_s if self.redacted?
     
-    if self.redacted?
-      el1['redacted'] = self.redaction.id.to_s
+    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
     end
     
-    unless self.redacted? and (@user.nil? or not @user.moderator?)
-      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
-      end
- 
-      self.old_tags.each do |tag|
-        e = XML::Node.new 'tag'
-        e['k'] = tag.k
-        e['v'] = tag.v
-        el1 << e
-      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