title: How can I show a form with the old values so that you can edit?
body: <p>in controller I find the id</p>
  
  <pre><code> $oggetto = $this-&gt;getDoctrine()
          -&gt;getRepository('AcmeTryBundle:Try')
          -&gt;find($id);
  </code></pre>
  
  <p>after I passed this $values into form(just?)</p>
  
  <pre><code>$form = $this-&gt;createForm(new TryType(), $oggetto);
  </code></pre>
  
  <p>and in FormType? what I put?</p>
  
  <pre><code>public function buildForm(FormBuilder $builder, array $options)
      {
          $builder-&gt;add('name','text')  ? 
  </code></pre>