public async Task <IActionResult> Delete(DeleteEvaluationViewModel model)
        {
            if (ModelState.IsValid)
            {
                var evaluation = await _evaluationManager.FindByIdAsync(model.Id);

                if (evaluation == null)
                {
                    return(NotFound(model.Id));
                }
                await _evaluationManager.DeleteAsync(evaluation);

                Notifier.Success("你已成功删除了一条技术评测记录!");
                return(RedirectToAction(nameof(List)));
            }
            return(View(model));
        }
        public async Task <IActionResult> DeleteConfirmAsync(int id)
        {
            Student user = await GetCurrentUser();

            var evaluation = await _evaluationManager.GetEvaluationAsync(id);

            if (evaluation == null)
            {
                return(NotFound());
            }

            if (evaluation.UserId != user.Id)
            {
                return(Unauthorized());
            }

            await _evaluationManager.DeleteAsync(id);

            return(RedirectToAction("Index"));
        }