// POST: odata/tbl_Head
        public IHttpActionResult Post(tbl_Head tbl_Head)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.tbl_Head.Add(tbl_Head);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (tbl_HeadExists(tbl_Head.HeadID))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(Created(tbl_Head));
        }
        // DELETE: odata/tbl_Head(5)
        public IHttpActionResult Delete([FromODataUri] short key)
        {
            tbl_Head tbl_Head = db.tbl_Head.Find(key);

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

            db.tbl_Head.Remove(tbl_Head);
            db.SaveChanges();

            return(StatusCode(HttpStatusCode.NoContent));
        }
        // PUT: odata/tbl_Head(5)
        public IHttpActionResult Put([FromODataUri] short key, Delta <tbl_Head> patch)
        {
            Validate(patch.GetEntity());

            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            tbl_Head tbl_Head = db.tbl_Head.Find(key);

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

            patch.Put(tbl_Head);

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

            return(Updated(tbl_Head));
        }