public void AddNewUniversity(UniversityDTO uni)
        {
            var university = new University()
            {
                Name = uni.Name, Address = uni.Address
            };

            context.Universities.Add(university);
            context.SaveChanges();
        }
        public void EditUniversity(UniversityDTO uni)
        {
            var u = context.Universities.SingleOrDefault(un => un.UniversityId == uni.Id);

            if (u != null)
            {
                u.Name    = uni.Name;
                u.Address = uni.Address;
                context.SaveChanges();
            }
        }