Cakephp FormData Ajax file upload -

i'm stuck in uploading data , file using formdata + ajax + cakephp

here form:

        <form name="multiform" class="frmaddproduct" action="addproduct" method="post" enctype="multipart/form-data">          <div class="formrow">             <div class="createproductlabel leftfloat">name</div>             <div class="formcontrol leftfloat"><input type="text" name="name"/><br/><span>name?</span></div>             <div class="clear"></div>         </div>          <div class="formrow">             <div class="createproductlabel leftfloat">cost</div>             <div class="formcontrol leftfloat"><input type="text" name="cost"/></div>             <div class="clear"></div>         </div>          <div class="formrow">             <div class="createproductlabel leftfloat">discount</div>             <div class="formcontrol leftfloat"><input type="text" name="discount" class="discount" maxlength="5"/> %</div>             <div class="clear"></div>         </div>          <div class="formrow">             <div class="createproductlabel leftfloat">description</div>             <div class="formcontrol leftfloat"><textarea name="description" rows="5"></textarea></div>             <div class="clear"></div>         </div>          <div class='formrow'>             <div class='createproductlabel leftfloat'>choose file</div>             <div class='formcontrol leftfloat'><input type='file' name=''productpicture'/></div>             <div class='closephotos leftfloat'><img src='../img/close.png' class='closeproductpicture'/></div>             <div class='clear'></div>         </div>          <div class="formrow">             <div class="createproductlabel leftfloat">&nbsp;</div>             <div class="formcontrol leftfloat"><input type="button" name="btncreateproduct" value=" create product "/></div>             <div class="clear"></div>         </div>         </form> 

here code submitting form:

$(".frmaddproduct").submit(function(e) {             var formobj = $(this);             var formurl = formobj.attr("action");          if(window.formdata !== undefined)  // html5 browsers             {                  var formdata = new formdata(this);                  $.ajax({                     url: formurl,                     type: 'post',                     data:  formdata,                     mimetype:"multipart/form-data",                     contenttype: false,                     cache: false,                     processdata:false,                     success: function(data, textstatus, jqxhr)                     {                             $("#multi-msg").html('<pre><code>'+data+'</code></pre>');                     },                     error: function(jqxhr, textstatus, errorthrown)                      {                         $("#multi-msg").html('<pre><code class="prettyprint">ajax request failed<br/> textstatus='+textstatus+', errorthrown='+errorthrown+'</code></pre>');                     }                           });                 e.preventdefault();                 e.unbind();            }            else  // older browsers             {                 // generate random id                 var  iframeid = 'unique' + (new date().gettime());                  // create empty iframe                 var iframe = $('<iframe src="javascript:false;" name="'+iframeid+'" />');                  // hide                 iframe.hide();                  // set form target iframe                 formobj.attr('target',iframeid);                  // add iframe body                 iframe.appendto('body');                 iframe.load(function(e)                 {                     var doc = getdoc(iframe[0]);                     var docroot = doc.body ? doc.body : doc.documentelement;                     var data = docroot.innerhtml;                     $("#multi-msg").html('<pre><code>'+data+'</code></pre>');                 });              } }); 

in firebug, can see data being sent:

-----------------------------2463414040929 content-disposition: form-data; name="categoryproduct" 1 -----------------------------2463414040929 content-disposition: form-data; name="companyproduct" 1 -----------------------------2463414040929 content-disposition: form-data; name="name" aaa -----------------------------2463414040929 content-disposition: form-data; name="cost" 34

but when try read or dump request data in controller, get: array()

i.e. no data being sent

debug($this->request->data);

also, $this->log($this->request->data["discount"]) gives me blank value

please me out on this.

i'm confused i'm getting wrong

i didn't used cakephp form helpers create form

use regular $_files php server variable