X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/9544ab12b8237b4e471f03df981a189c80216c63..c866d28fd496dfbe8173df1d4fed8f965af5bd56:/app/models/old_way.rb

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index 408dd72c7..1552bae04 100644
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -65,24 +65,11 @@ class OldWay < ActiveRecord::Base
   end
 
   def nds
-    unless @nds
-      @nds = Array.new
-      self.old_nodes.order(:sequence_id).each do |nd|
-        @nds += [nd.node_id]
-      end
-    end
-    @nds
+    @nds ||= self.old_nodes.order(:sequence_id).collect { |n| n.node_id }
   end
 
   def tags
-    unless @tags
-      @tags = Hash.new
-      self.old_tags.each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags = Hash.new unless @tags
-    @tags
+    @tags ||= Hash[self.old_tags.collect { |t| [t.k, t.v] }]
   end
 
   def nds=(s)
@@ -118,12 +105,10 @@ class OldWay < ActiveRecord::Base
   # (i.e. is it visible? are we actually reverting to an earlier version?)
 
   def get_nodes_undelete
-    points = []
-    self.nds.each do |n|
+    self.nds.collect do |n|
       node = Node.find(n)
-      points << [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
+      [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
     end
-    points
   end
   
   def get_nodes_revert(timestamp)