public IHttpActionResult Putsubsection(int id, subsection subsection)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != subsection.subsectionID)
            {
                return(BadRequest());
            }

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

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

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult Getsubsection(int id)
        {
            subsection subsection = db.subsections.Find(id);

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

            return(Ok(subsection));
        }
        public IHttpActionResult Postsubsection(subsection subsection)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.subsections.Add(subsection);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = subsection.subsectionID }, subsection));
        }
        public IHttpActionResult Deletesubsection(int id)
        {
            subsection subsection = db.subsections.Find(id);

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

            db.subsections.Remove(subsection);
            db.SaveChanges();

            return(Ok(subsection));
        }