Return usernames correctly.

[rails.git] / app / models / node.rb

diff --git a/app/models/node.rb b/app/models/node.rb
index 1288503b92b3d34ca617b67984c755e03369ee71..abf0c583e14a97ced1aed1cd69d8bd932a4beaaa 100644 (file)
--- a/app/models/node.rb
+++ b/app/models/node.rb
@@ -78,12 +78,24 @@ class Node < ActiveRecord::Base
     return doc
   end
 
-  def to_xml_node
+  def to_xml_node(user_display_name_cache = nil)
     el1 = XML::Node.new 'node'
     el1['id'] = self.id.to_s
     el1['lat'] = self.latitude.to_s
     el1['lon'] = self.longitude.to_s
-    el1['user'] = self.user.display_name if self.user.data_public?
+
+    user_display_name_cache = {} if user_display_name_cache.nil?
+
+    if user_display_name_cache and user_display_name_cache[self.user_id]
+      # use the cache if available
+    elsif self.user.data_public?
+      user_display_name_cache[self.user_id] = self.user.display_name
+    else
+      user_display_name_cache[self.user_id] = nil
+    end
+
+    el1['user'] = user_display_name_cache[self.user_id] unless user_display_name_cache[self.user_id].nil?
+
     Node.split_tags(el1, self.tags)
     el1['visible'] = self.visible.to_s
     el1['timestamp'] = self.timestamp.xmlschema