/// <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()));
}
}
public void RemoveTagsAsync(IEnumerable <TagEntity> tags)
{
ArgumentGuard.NotNull(tags, nameof(tags));
_blogDbContext.RemoveRange(tags);
}