updates to api

app/controllers/api_controller.rb

@@ -9,10 +9,6 @@ class ApiController < ApplicationController
   #COUNT is the number of map requests to allow before exiting and starting a new process
   @@count = COUNT
 
-  def authorize_web
-    @current_user = User.find_by_token(session[:token])
-  end
-
   # The maximum area you're allowed to request, in square degrees
   MAX_REQUEST_AREA = 0.25
 

app/controllers/segment_controller.rb

@@ -22,6 +22,7 @@ class SegmentController < ApplicationController
         
         unless segment.preconditions_ok? # are the nodes visible?
           render :nothing => true, :status => HTTP_PRECONDITION_FAILED
+          return
         end
 
         if segment.save_with_history

app/models/way.rb

@@ -84,7 +84,7 @@ class Way < ActiveRecord::Base
     end
 
     ordered_segments.each do |seg_id|
-      if seg_id
+      if seg_id and seg_id != '0'
         e = XML::Node.new 'seg'
         e['id'] = seg_id
         el1 << e