/**
* Return random database resource object
* @param string $group Group name
* @return boolean|\Sonic\Model\PDO
*/
public static function &_getRandomDbResource($group)
{
$obj = FALSE;
while (Sonic::countResourceGroup($group) > 0) {
$name = Sonic::selectRandomResource($group);
$obj =& Sonic::getResource(array($group, $name));
// If a PDO object
if ($obj instanceof \PDO) {
// Attempt to connect to the resource
// This will throw an exception if it fails or break the loop if it succeeds
if ($obj instanceof Resource\Db) {
try {
$obj->Connect();
// Set as default group object for persistence
Sonic::setSelectedResource($group, $name);
break;
} catch (\PDOException $e) {
// Do nothing
}
} else {
break;
}
}
// Remove resource from the framework as its not valid
// then continue to the next object
Sonic::removeResource($group, $name);
$obj = FALSE;
}
return $obj;
}
