public IActionResult Update(int id)
        {
            var token = HttpContext.Session.GetString("agentId");

            if (string.IsNullOrEmpty(token))
            {
                return(RedirectToAction("Index", "Login"));
            }
            var entity = _advertisementService.GetAdvertisementByExpression(x => x.Id == id);
            var model  = _mapper.Map <AdvertisementModel>(entity);

            return(View(model));
        }