public function loadGlobalByFarmId($envId, $platform, $cloudLocation, $farmId = null)
{
$farmId = $farmId ? $farmId : NULL;
$criteria = [['envId' => $envId], ['type' => self::TYPE_GLOBAL], ['platform' => $platform], ['farmId' => $farmId], ['$or' => [['cloudLocation' => ''], ['cloudLocation' => $cloudLocation]]]];
return self::findOne($criteria);
}