public function cleanSnapshots()
 {
     $this->beginTransaction();
     parent::cleanSnapshots();
     $this->commit();
     return $this;
 }
 protected function _pdo()
 {
     return sfPhpunitFixtureDb::factory(Propel::getConnection($this->_getOption('connection')));
 }
 /**
  * (non-PHPdoc)
  * @see plugins/sfPhpunitPlugin/lib/fixture/sfPhpunitFixture::_pdo()
  */
 protected function _pdo()
 {
     return sfPhpunitFixtureDb::factory(Doctrine_Manager::getInstance()->getCurrentConnection()->getDbh());
 }