title: Form with embedded relation won't save Symfony 1.4 Doctrine
body: <p>I have embedded the Mutt form within the Mix form:
  MixForm.class.php:</p>
  
  <pre><code>$this-&gt;embedRelation('Mutt');
  $form = new MuttForm(null, array(
      'mix' =&gt;$this-&gt;getObject(),
  ));
  $this-&gt;embedForm('Mutt', $form);
  $this-&gt;widgetSchema['Mutt'] = $form-&gt;getWidgetSchema();
  $this-&gt;widgetSchema['Mutt']['mix_id'] = new sfWidgetFormInputHidden();
  $this-&gt;validatorSchema['Mutt'] = $form-&gt;getValidatorSchema();
  </code></pre>
  
  <p>I need the newly created id form for the Mix table to populate the mix_id field in the Mutt table.</p>
  
  <pre><code>&lt;?php echo $form-&gt;renderHiddenFields();?&gt;
  &lt;?php echo $form['name']-&gt;renderRow();?&gt;
  &lt;?php echo $form['parent1']-&gt;renderRow();?&gt;
  &lt;?php echo $form['parent2']-&gt;renderRow();?&gt;
  &lt;?php echo $form['parent3']-&gt;renderRow();?&gt;
  &lt;?php echo $form['parent4']-&gt;renderRow();?&gt;
  &lt;?php echo $form['parent5']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['creator']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['email']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['website']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['caption']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['photo']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']['copyright']-&gt;renderRow();?&gt;
  &lt;?php echo $form['Mutt']-&gt;renderHiddenFields();?&gt;
  </code></pre>
  
  <p>Here is my action in modules/mix/actions/actions.class.php</p>
  
  <pre><code>public function executeEdit(sfWebRequest $request)
     {
      $this-&gt;form = new MixForm();
      if($request-&gt;isMethod('post')):
          $this-&gt;form-&gt;bind($request-&gt;getParameter('mix'), $request-&gt;getFiles($this-&gt;form-&gt;getName()));
          if($this-&gt;form-&gt;isValid()):
              $this-&gt;form-&gt;save();
              $this-&gt;redirect('pure/add');
          endif;
      endif;
     }
  </code></pre>
  
  <p>The form validation works correctly, but it won't save in either database.
  What am I doing wrong??</p>