When asked for ways which use a node, or relations which use some given

object, return 200 OK with an empty document if not matches are found
rather than 400 Bad Request (for ways) or 404 Not Found (for relations).

app/controllers/relation_controller.rb

@@ -201,16 +201,12 @@ class RelationController < ApplicationController
   def relations_for_object(objtype)
     relationids = RelationMember.find(:all, :conditions => ['member_type=? and member_id=?', objtype, params[:id]]).collect { |ws| ws.id }.uniq
 
-    if relationids.length > 0
-      doc = OSM::API.new.get_xml_doc
+    doc = OSM::API.new.get_xml_doc
 
-      Relation.find(relationids).each do |relation|
-        doc.root << relation.to_xml_node
-      end
-
-      render :text => doc.to_s, :content_type => "text/xml"
-    else
-      render :nothing => true, :status => :not_found
+    Relation.find(relationids).each do |relation|
+      doc.root << relation.to_xml_node
     end
+
+    render :text => doc.to_s, :content_type => "text/xml"
   end
 end

app/controllers/way_controller.rb

@@ -140,16 +140,12 @@ class WayController < ApplicationController
   def ways_for_node
     wayids = WayNode.find(:all, :conditions => ['node_id = ?', params[:id]]).collect { |ws| ws.id }.uniq
 
-    if wayids.length > 0
-      doc = OSM::API.new.get_xml_doc
+    doc = OSM::API.new.get_xml_doc
 
-      Way.find(wayids).each do |way|
-        doc.root << way.to_xml_node
-      end
-
-      render :text => doc.to_s, :content_type => "text/xml"
-    else
-      render :nothing => true, :status => :bad_request
+    Way.find(wayids).each do |way|
+      doc.root << way.to_xml_node
     end
+
+    render :text => doc.to_s, :content_type => "text/xml"
   end
 end