//[HttpPut()]
        //[Authorize(Policy = UserPolicyTypes.OnlySupervisor)]
        //public void ModifyBoard(int typeid, int id, [FromBody] BoardModel boardModel)
        //{

        //}

        //[HttpPut()]
        //[Authorize(Policy = UserPolicyTypes.OnlySupervisor)]
        //public void RemoveBoard(int typeid, int id)
        //{

        //}


        private AttachFileRepositary RegisterFile(int boardtype, int boardid, string fileName, string FileBase64Data)
        {
            if (string.IsNullOrEmpty(FileBase64Data))
            {
                return(null);
            }
            AttachFileRepositary registerFile = new AttachFileRepositary();

            registerFile.Id        = Guid.NewGuid().ToString();
            registerFile.Filename  = fileName;
            registerFile.Boardid   = boardid;
            registerFile.Grouptype = boardtype;
            string[] splits       = FileBase64Data.Split(',');
            string   contentsType = "";
            string   contents     = "";

            if (splits.Length == 1)
            {
                contentsType = System.IO.Path.GetExtension(fileName);
                contents     = splits[0];
            }
            else

            {
                contentsType = splits[0];
                contents     = splits[1];
            }
            registerFile.Contentstype = contentsType;
            byte[] data = Convert.FromBase64String(contents);
            registerFile.Contents = data;
            registerFile.Createdt = DateTime.Now.Date;
            return(registerFile);
        }
        public async Task <IActionResult> WriteBoard([FromBody] AttachableBoardModel boardModel)
        {
            using (var session = _accountContext.SessionFactory.OpenSession())
                using (var trans = session.BeginTransaction())
                {
                    NoticeBoard NewBoard = new NoticeBoard();
                    NewBoard.RegisterUserId = HttpContext.User.FindFirst(ClaimTypes.NameIdentifier).Value;
                    NewBoard.Title          = boardModel.Title;
                    NewBoard.Contents       = boardModel.Contents;
                    NewBoard.Createts       = DateTime.Now;

                    await session.SaveOrUpdateAsync(NewBoard);

                    if (boardModel.AttachFiles.Length > 0)
                    {
                        foreach (AttachFileModel attach in boardModel.AttachFiles)
                        {
                            AttachFileRepositary attachFile = RegisterFile(0, NewBoard.ID, attach.Filename, attach.ContentsBase64);
                            await session.SaveOrUpdateAsync(attachFile);
                        }
                    }
                    await trans.CommitAsync();
                }
            return(Ok());
        }