// POST api/login
 public HttpResponseMessage Post(RequirementNameModel model)
 {
     try
     {
         using (var ctx = new Entities())
         {
             ctx.ArchiveRequirement(model.CellID, model.Tag);
             ctx.SaveChanges();
             return new HttpResponseMessage(HttpStatusCode.OK);
         }
     }
     catch
     {
         return new HttpResponseMessage(HttpStatusCode.InternalServerError);
     }
 }