コード例 #1
0
            public async Task <Photo> Handle(Command request, CancellationToken cancellationToken)
            {
                var post = await _context.Posts.FindAsync(request.Id);

                var hasThumbnail = post.Thumbnail;

                if (post == null)
                {
                    throw new RestException(HttpStatusCode.NotFound,
                                            new { Post = "찾을 수 없습니다." });
                }

                var photoUploadResult = _photoAccessor.AddThumbnail(request.File);

                if (hasThumbnail != null)
                {
                    var result = _photoAccessor.DeletePhoto(hasThumbnail.Id);

                    if (result == null)
                    {
                        throw new Exception("삭제하는 동안 오류가 발생했습니다.");
                    }

                    post.Thumbnail.Id.Remove(0);
                }

                var photo = new Photo
                {
                    Url = photoUploadResult.Url,
                    Id  = photoUploadResult.PublicId
                };

                post.Thumbnail = photo;

                var success = await _context.SaveChangesAsync() > 0;

                if (success)
                {
                    return(photo);
                }

                throw new Exception("데이터를 저장하는 동안 오류가 발생했습니다.");
            }