partial void DeleteFeedback(Feedback instance);
 partial void InsertFeedback(Feedback instance);
 partial void UpdateFeedback(Feedback instance);
        public JsonResult NewFeedback()
        {
            var form = Request.Form;
            string name = form["name"], message = form["message"];

            if (name.IsEmpty() || message.IsEmpty()) return Json(false);

            var feedback = new Feedback
            {
                Name = name.GetValidatedString(),
                Message = message.GetValidatedString(),
                Date = DateTime.Now
            };
            _db.Feedbacks.InsertOnSubmit(feedback);
            _db.SubmitChanges();

            return Json(new
            {
                name = feedback.Name,
                message = feedback.Message.ResolveLinks(),
                time = feedback.Date.ToAgo(DateTime.Now)
            });
        }