changes

app/controllers/uploads_controller.rb

@@ -23,6 +23,7 @@ class UploadsController < ApplicationController
 
   def create
   	@upload = Upload.create(params[:upload])
+  	@upload.delay.process!
     respond_with(@upload)
   end
   

app/models/upload.rb

@@ -48,6 +48,8 @@ class Upload < ActiveRecord::Base
   
   module ConversionMethods
     def process!
+      return if status =~ /processing|completed|error/
+      
       CurrentUser.scoped(uploader, uploader_ip_addr) do
         update_attribute(:status, "processing")
         if is_downloadable?