/// <summary>
        /// 从数据库和磁盘上删除博文
        /// </summary>
        /// <param name="command"></param>
        /// <returns></returns>
        public CommandResult Execute(DeletePostCommand command)
        {
            try
            {
                using (var transaction = _context.Database.BeginTransaction())
                {
                    // 删除博客
                    var entity = _context.Posts.Where(o => o.Id == command.PostId.Value).FirstOrDefault();
                    _context.Posts.Remove(entity);
                    // 删除关联标签
                    var postTags = _context.PostTags.Where(o => o.PostId == entity.Id);
                    _context.RemoveRange(postTags.ToArray());

                    _context.SaveChanges();
                    transaction.Commit();
                }
                return(new CommandResult());
            }
            catch (Exception e)
            {
                // 删除失败
                return(new CommandResult(e.ToString()));
            }
        }
Ejemplo n.º 2
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        public void RemoveTagsAsync(IEnumerable <TagEntity> tags)
        {
            ArgumentGuard.NotNull(tags, nameof(tags));

            _blogDbContext.RemoveRange(tags);
        }