/// <summary>
/// Ensure that an email is set if the user wants notifications.
/// </summary>
/// <param name="email"></param>
/// <param name="session"></param>
/// <exception cref="ValidationException"></exception>
public static void SetNotificationEmail(bool notify, string email, SessionWrapper session, SiteConfiguration config, IUsersService service)
{
if (notify && config.Notifications.Subscription.IsDefined)
{
if (session.User.Email == null)
{
service.AddEmail(session.User.Id, email, EmailPolicy.SendFromSubscriptions);
session.User.Email = email;
}
}
}