#region Notifications
        public void AddNotifications(string studentId, string grade, string subject)
        {
            AlertContent newAlert = new AlertContent()
            {
                Content = subject + ": Masz nową ocenę: " + grade
            };
            db.AlertContents.Add(newAlert);
            db.SaveChanges();

            // var alertType = db.AlertContents.Where(c => c.AlertContentID == alert).FirstOrDefault().AlertContentID;
            var dateNow = DateTime.Now;

            var student = db.Students.Where(u => u.UserId == studentId).FirstOrDefault();

            if (student != null)
            {
                db.Alerts.Add(new Alert() { IsOn = true, StudentUserId = studentId, AddDate = dateNow, AlertContentID = newAlert.AlertContentID });
            }
            db.SaveChanges();
        }