public function configure()
{
// remove unneeded fields
unset($this['name'], $this['tree_left'], $this['tree_right'], $this['relative_path'], $this['created_at'], $this['updated_at']);
// add parent folder select
$this->widgetSchema['parent_folder'] = new sfWidgetFormPropelChoice(array('model' => 'sfAssetFolder', 'criteria' => sfAssetFolderPeer::getAllNonDescendantsPathsCriteria($this->getObject())));
$this->validatorSchema['parent_folder'] = new sfValidatorPropelChoice(array('model' => 'sfAssetFolder', 'column' => 'id', 'required' => true));
// avoid id conflict for id
$this->widgetSchema['id']->setIdFormat('move_%s');
}
