public static ArticleEntity ToArticleEntity(this ArticleViewModel model)
        {
            var art = new ArticleEntity()
            {
                Id = model.Id,
                BlogId = model.BlogId,
                Content = model.Content,
                DateAdded = model.TimeAdded,
                ImagePath = model.ImagePath,
                Name = model.Title,
                Author = model.Author
            };

            if (model.Tags.Count != 0)
            {
                var sb = new StringBuilder();
                foreach (var tag in model.Tags)
                {
                    sb.Append(tag.TagField);
                    sb.Append(',');
                }
                sb.Remove(sb.Length - 1, 1);
                art.Tags = sb.ToString();
            }
            return art;
        }
 public void UpdateArticle(ArticleEntity article)
 {
     repository.Update(article.ToDalArticle());
     uow.Commit();
 }