ruby on rails - Jquery File Upload submit only file instead of whole form data -

i using jquery file upload plug-in (basic version) https://github.com/blueimp/jquery-file-upload upload file in background carrierwave , rails3.

   <script type="text/javascript">       //auto upload files on change event       $(function (){         $("form input[type='file']").fileupload({             datatype: 'script',             add: function (e, data) {               data.submit();             },             done: function (e, data){             },           });                });     </script>   

but data.submit() method submit whole form data along file needs uploaded, big problem application performance considered.

please me if has faced problem.

you cannot upload file without submitting form in rails , if possible make form file field upload button .