// PUT api/University/5
        public HttpResponseMessage PutUniversity(string code, EducationalInstitute university)
        {
            if (ModelState.IsValid && code == university.Code)
            {
                var existingUni = GetUniversity(code);
                existingUni.Name    = university.Name;
                existingUni.Address = university.Address;

                try
                {
                    db.SaveChanges();
                }
                catch (DbUpdateConcurrencyException)
                {
                    return(Request.CreateResponse(HttpStatusCode.NotFound));
                }

                return(Request.CreateResponse(HttpStatusCode.OK,
                                              GetUniversity(code)));
            }
            else
            {
                return(Request.CreateResponse(HttpStatusCode.BadRequest));
            }
        }
        // GET api/University/5
        public EducationalInstitute GetUniversity(string code)
        {
            EducationalInstitute university = db.EducationalInstitutes.First(u => u.Code == code);

            if (university == null)
            {
                throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound));
            }

            return(university);
        }
        // POST api/University
        public HttpResponseMessage PostUniversity(EducationalInstitute university)
        {
            if (ModelState.IsValid)
            {
                db.EducationalInstitutes.Add(university);
                db.SaveChanges();

                HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, university);
                response.Headers.Location = new Uri(Url.Link("EducationalInstitutes", new { code = university.Code }));
                return(response);
            }
            else
            {
                return(Request.CreateResponse(HttpStatusCode.BadRequest, ModelState.Values));
            }
        }
        // DELETE api/University/5
        public HttpResponseMessage DeleteUniversity(string code)
        {
            EducationalInstitute university = GetUniversity(code);

            db.EducationalInstitutes.Remove(university);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                return(Request.CreateResponse(HttpStatusCode.NotFound));
            }

            return(Request.CreateResponse(HttpStatusCode.OK, university));
        }