public int EraseLesson(string nume, string mail, string materii)
        {
            try
            {
                var rr    = new ResourcesRepository();
                var model = rr.GetProfesoriByMail(mail);

                using (var context = new EducatieIncluzivaDBContext())
                {
                    Course curs = (from p in context.Courses
                                   where p.ProfesorId == model.UserId && p.Nume.Equals(materii)
                                   select p).FirstOrDefault();

                    Lesson l = (from m in context.Lessons
                                where m.CourseId == curs.CourseId && m.ProfesorOwnerId == model.UserId && m.Titlu.Equals(nume)
                                select m).FirstOrDefault();
                    if (l != null)
                    {
                        context.Lessons.Remove(l);
                        context.SaveChanges();
                        return(1);
                    }
                }
            }
            catch
            { }
            return(0);
        }
        public static bool ValidateUser(string Mail, string Parola)
        {
            ResourcesRepository rr = new ResourcesRepository();

            User user = rr.GetUserByMail(Mail);

            if (user != null)
            {
                //daca l-am gasit in baza de date
                if (user.Parola.Equals(Parola))
                {
                    //daca parolele coincid
                    return(true);
                }
            }
            //daca nu l-am gasit nici la elevi, nici la profesori
            return(false);
        }