/**
* Returns the database connection used by active record.
* By default, the "db" application component is used as the database connection.
* You may override this method if you want to use a different database connection.
*
* @return CDbConnection the database connection used by active record.
*/
public function getDbConnection()
{
if (self::$db !== null) {
return self::$db;
} else {
self::$db = Yii::app()->getDb();
if (self::$db instanceof CDbConnection) {
return self::$db;
} else {
$message = Yii::t('packages', 'Transactional form model requires a "db" CDbConnection application component.');
throw new CDbException($message);
}
}
}
