public IHttpActionResult PutCoursePrequist(int id, CoursePrequist coursePrequist)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != coursePrequist.Id)
            {
                return(BadRequest());
            }

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

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

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetCoursePrequist(int id)
        {
            CoursePrequist coursePrequist = db.CoursePrequists.Find(id);

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

            return(Ok(coursePrequist));
        }
        public IHttpActionResult PostCoursePrequist(CoursePrequist coursePrequist)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.CoursePrequists.Add(coursePrequist);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = coursePrequist.Id }, coursePrequist));
        }
        public IHttpActionResult DeleteCoursePrequist(int id)
        {
            CoursePrequist coursePrequist = db.CoursePrequists.Find(id);

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

            db.CoursePrequists.Remove(coursePrequist);
            db.SaveChanges();

            return(Ok(coursePrequist));
        }