Don't generate an IN condition with an empty list.

[rails.git] / app / controllers / old_node_controller.rb

diff --git a/app/controllers/old_node_controller.rb b/app/controllers/old_node_controller.rb
index 5734fefd7017c4fd8bb0cd7d79fd30dd560d32e9..2590fd24aefbac64035b0e31e7c04dfa76de1612 100644 (file)
--- a/app/controllers/old_node_controller.rb
+++ b/app/controllers/old_node_controller.rb
@@ -1,6 +1,10 @@
 class OldNodeController < ApplicationController
   require 'xml/libxml'
 
+  session :off
+  before_filter :check_api_readable
+  after_filter :compress_output
+
   def history
     begin
       node = Node.find(params[:id])
@@ -18,4 +22,24 @@ class OldNodeController < ApplicationController
       render :nothing => true, :status => :internal_server_error
     end
   end
+  
+  def version
+    begin
+      old_node = OldNode.find(:first, :conditions => {:id => params[:id], :version => params[:version]} )
+      if old_node.nil?
+        # (RecordNotFound is not raised with find :first...)
+        render :nothing => true, :status => :not_found
+        return
+      end
+      
+      response.headers['Last-Modified'] = old_node.timestamp.rfc822
+
+      doc = OSM::API.new.get_xml_doc
+      doc.root << old_node.to_xml_node
+
+      render :text => doc.to_s, :content_type => "text/xml"
+    rescue
+      render :nothing => true, :status => :internal_server_error
+    end
+  end
 end