public ActionResult Comments_Destroy([DataSourceRequest]DataSourceRequest request, Comment comment)
        {
            var comentDb = this.comments.AllWithDeleted().Where(x => x.Id == comment.Id).FirstOrDefault();

            this.comments.Delete(comentDb);
            this.comments.SaveChanges();

            return Json(new[] { comment }.ToDataSourceResult(request, ModelState));
        }
        public void Create(string text, string creatorUserName, int fieldId)
        {
            var user = this.users.All().Where(x => x.UserName == creatorUserName).FirstOrDefault();

            var field = this.fields.All().Where(x => x.Id == fieldId).FirstOrDefault();
            var comment = new Comment
            {
                Creator = user,
                Field = field,
                Text = text
            };
            this.comments.Add(comment);
            this.fields.SaveChanges();
        }