public function configure()
 {
     parent::configure();
     unset($this['updated_at']);
     $this->widgetSchema->getFormFormatter()->setTranslationCatalogue('plopAdmin');
     $this->widgetSchema['culture'] = new sfWidgetFormPlopI18nChoiceLanguage(array('languages' => sfPlop::get('sf_plop_cultures'), 'default' => $this->getOption('user_culture'), 'culture' => $this->getOption('culture')));
     $this->validatorSchema['culture'] = new sfValidatorI18nChoiceLanguage();
     $this->widgetSchema['is_public']->setLabel('Is public ?');
     $this->widgetSchema['theme'] = new sfWidgetFormPlopChoiceAdminTheme(array('add_empty' => true));
     $this->validatorSchema['theme'] = new sfValidatorPlopChoiceAdminTheme(array('required' => false));
     $this->widgetSchema->getFormFormatter()->setHelpFormat(sfPlop::get('sf_plop_form_help_format'));
     $this->widgetSchema->setHelps(array('password' => 'To update the password, please fill the two "password" fields. Otherwise, let them empty.'));
 }