public IHttpActionResult PutGradlesSubjects(decimal id, GradlesSubjects gradlesSubjects)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != gradlesSubjects.student_ID)
            {
                return(BadRequest());
            }

            db.Entry(gradlesSubjects).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!GradlesSubjectsExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult PostGradlesSubjects(GradlesSubjects gradlesSubjects)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.GradlesSubjects.Add(gradlesSubjects);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (GradlesSubjectsExists(gradlesSubjects.student_ID))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("DefaultApi", new { id = gradlesSubjects.student_ID }, gradlesSubjects));
        }
        public IHttpActionResult DeleteGradlesSubjects(decimal id)
        {
            GradlesSubjects gradlesSubjects = db.GradlesSubjects.Find(id);

            if (gradlesSubjects == null)
            {
                return(NotFound());
            }

            db.GradlesSubjects.Remove(gradlesSubjects);
            db.SaveChanges();

            return(Ok(gradlesSubjects));
        }