/**
* Get a database object
*
* Returns a reference to the global {@link JDatabase} object, only creating it
* if it doesn't already exist.
*
* @return object JDatabase
*/
public static function &getDBO()
{
static $instance;
if (!is_object($instance)) {
//get the debug configuration setting
$conf =& JFactory::getConfig();
$debug = $conf->getValue('config.debug');
$instance = JFactory::_createDBO();
$instance->debug($debug);
}
return $instance;
}