public function setup()
 {
     parent::setup();
     $this->useFields(array('source', 'destination', 'content_id'));
     // Setup the content_id widget
     sfSympalFormToolkit::changeContentWidget($this);
 }
 public function setup()
 {
     parent::setup();
     $this->useFields(array('source', 'destination', 'content_id'));
 }