/**
*
* This static method should initially be called with a configFile as parameter
* When the method is called a second time, no configFiles is necessary as the
* database object was created the first time, and will be returned.
*
* @param $configFile
* @return Zend_Db_Adapter
*/
public static function getInstance($configFile = null)
{
if (is_null(self::$onlyInstance)) {
if ($configFile == null) {
throw new Exception('Config file not provided to boostrap database.');
}
self::$onlyInstance = self::InitFromXMLConfig($configFile);
}
return self::$onlyInstance;
}
