public IResult AddComment(int articleId, int developerId, string commentContent) { try { Comment comment = new Comment { ArticleId = articleId, WriterId = developerId, CommentContent = commentContent, ModifiedDate = DateTime.Now, CreatedDate = DateTime.Now, }; DbInstance.AddComment(comment); DbInstance.SaveChanges(); return(new SuccessResult()); } catch (Exception) { return(new ErrorResult(Messages.ErrorAddComment)); } }