public static function setupCache($ip)
 {
     $driver = Config::inst()->get('IPInfoCache', 'Driver');
     if (!$driver) {
         foreach (self::$defaultDrivers as $defaultDriver) {
             if (class_exists($defaultDriver)) {
                 $driver = $defaultDriver;
                 break;
             }
         }
         if (!$driver) {
             user_error('A driver needs to be specified');
         }
     }
     $ipService = new $driver();
     $dbJson = $ipService->processIP($ip);
     // do not cache a empty object
     if ($dbJson) {
         $cache = IPInfoCache::create();
         $cache->IP = $ip;
         $cache->Info = $dbJson;
         $cache->write();
     }
     return $ipService->getJSON();
 }
 public static function setupCache($ip)
 {
     $driver = Config::inst()->get('IPInfoCache', 'Driver');
     $ipService = new $driver();
     $dbJson = $ipService->processIP($ip);
     $cache = IPInfoCache::create();
     $cache->IP = $ip;
     $cache->Info = $dbJson;
     $cache->write();
     return $ipService->getJSON();
 }