public function configure()
 {
     $module_options = Madule::getAsOptions();
     $themeGroup_options = ThemeGroup::getAsOptions(null, $this->defaults['module_id']);
     $this->setWidgets(array('module_id' => new sfWidgetFormSelect(array('choices' => $module_options)), 'theme_group_id' => new sfWidgetFormSelect(array('choices' => $themeGroup_options))));
     $this->widgetSchema->setLabels(array('module_id' => 'Module', 'theme_group_id' => 'Theme Group'));
     $this->widgetSchema->setNameFormat('moduleThemeGroup[%s]');
     $formatter = new exchangeWidgetFormSchemaFormatter($this->getWidgetSchema());
     $this->getWidgetSchema()->addFormFormatter('exchange', $formatter);
     $this->getWidgetSchema()->setFormFormatterName('exchange');
     $this->setValidatorSchema(new sfValidatorSchema(array('module_id' => new sfValidatorChoice(array('choices' => array_keys($module_options))), 'theme_group_id' => new sfValidatorChoice(array('choices' => array_keys($themeGroup_options))))));
 }