title: Symfony2 handle jQuery serialized Form sent with ajax post
body: <p>I'm trying to handle the form sent with ajax<br>
  here is my ajax post code:</p>
  
  <pre><code>     $.post("{{ path('order_ad_banner') }}",
          {form: $('#adOrderForm').serialize(), url: "{{ url }}"},
          function (data) {
              $('#formWindow').html(data);
          }
      );
  </code></pre>
  
  <p>here my request handling:</p>
  
  <pre><code>$receivedForm = $request-&gt;request-&gt;get('form', null);
  ...
  $form = $this-&gt;createForm(new OrderType(), $order);
  if($receivedForm) {
      $form-&gt;submit($receivedForm);
  }
  </code></pre>
  
  <p>unfortunately this binding doesn't work</p>