public async Task UploadFileToDocument(UploadAttachmentModel upload)
{
using (var unitOfWork = await DataConnectionFactory.CreateUnitOfWork())
{
var document = await unitOfWork.Documents.GetById(upload.DocumentId);
if (document == null)
{
throw new NotFoundException("Document not found.");
}
if (document.FileId.HasValue)
{
throw new LogicException("A file is already attached to this document.");
}
var file = await _fileProvider.SaveFile(upload);
document.Attachment = file;
await unitOfWork.Documents.Update(document);
await unitOfWork.SaveChangesAsync();
}
}
