// DELETE: api/Users/5
 public HttpResponseMessage Delete(int id)
 {
     return((LogicDailyPresence.RemoveDailyPresence(id)) ?
            new HttpResponseMessage(HttpStatusCode.OK) :
            new HttpResponseMessage(HttpStatusCode.BadRequest)
     {
         Content = new ObjectContent <String>("Can not remove from DB", new JsonMediaTypeFormatter())
     });
 }