gistfile1.txt

-(UIInterfaceOrientationMask)application:(UIApplication* )application supportedInterfaceOrientationsForWindow:(UIWindow* )window {
    id presentedViewController = [window.rootViewController presentedViewController];
    NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;
    
    if (window && [className isEqualToString:@"SKStoreProductViewController"]) 
        return UIInterfaceOrientationMaskLandscape;
    else
        return UIInterfaceOrientationMaskPortrait;
}