public void EditClassification(Classification newClassification)
 {
     var oldClassification = GetClassification(newClassification.Id);
     oldClassification.Rating = newClassification.Rating;
     oldClassification.Status = newClassification.Status;
     oldClassification.StudentId = newClassification.StudentId;
     oldClassification.Base = newClassification.Base;
     oldClassification.ClassificationTypeId = newClassification.ClassificationTypeId;
     SaveChanges();
 }
        public Classification Add(Classification classification)
        {
            var exists = entities.Classifications.FirstOrDefault(x =>
                x.ClassificationTypeId == classification.ClassificationTypeId &&
                x.Base.ToLower() == classification.Base.ToLower());

            if (exists != null)
                return null;

            var cs = entities.Classifications.Add(classification);
            SaveChanges();

            return cs;
        }