public void AddPrivateMessageNotification(int privateMessageId)
{
Trace.Assert(Context.PersonId.HasValue);
var privateMessage = ServiceLocator.PrivateMessageService.GetSentMessage(privateMessageId);
var notifications = privateMessage.RecipientPersons.Select(x => builder.BuildPrivateMessageNotification(Context.NowSchoolTime, privateMessage, privateMessage.Sender, x));
NotificationStorage.Add(notifications.ToList());
}
