public IHttpActionResult PutMusic(int id, String comment) { if (!ModelState.IsValid) { return(BadRequest(ModelState)); } if (id != comment.Id) { return(BadRequest()); } _db.Entry(comment).State = EntityState.Modified; try { _db.SaveChanges(); } catch (DbUpdateConcurrencyException) { if (!StringExists(id)) { return(NotFound()); } throw; } return(StatusCode(HttpStatusCode.NoContent)); }