public async Task <ActionResult <OVEAssetModel> > Edit(string id, [Bind("Project,Name,Description,Id,StorageLocation,Processed,Service,AssetMeta,LastModified")]
OVEAssetModel oveAssetModel, [FromForm] IFormFile upload)
{
if (id != oveAssetModel.Id)
{
return(NotFound());
}
var oldAssetModel = await _context.AssetModels.FirstOrDefaultAsync(m => m.Id == id);
if (oldAssetModel == null)
{
return(NotFound());
}
// check someone is not tampering with the service after upload
if (upload == null && !_serviceRepository.ValidateServiceChoice(oveAssetModel.Service, oveAssetModel.StorageLocation))
{
ModelState.AddModelError("Service", "Service does not support File Type");
}
// concurrent fields need to be updated by themselves and atomically.
bool need2UpdateProcessingState = oldAssetModel.ProcessingState != oveAssetModel.ProcessingState;
if (need2UpdateProcessingState)
{
oveAssetModel.ProcessingState = oldAssetModel.ProcessingState;
}
if (ModelState.IsValid)
{
try {
if (oldAssetModel.Project != oveAssetModel.Project)
{
await _fileOperations.Move(oldAssetModel, oveAssetModel); // todo not implemented
}
//stop EF from tracking the old version so that it will allow you to update the new version
_context.Entry(oldAssetModel).State = EntityState.Detached;
if (upload != null && upload.Length > 0)
{
if (!_serviceRepository.ValidateServiceChoice(oveAssetModel.Service, upload))
{
ModelState.AddModelError("Service", "Service does not support File Type");
}
if (!await _fileOperations.Delete(oveAssetModel))
{
return(UnprocessableEntity("unable to delete old file"));
}
if (!await _fileOperations.Save(oveAssetModel, upload))
{
return(UnprocessableEntity("unable to save new file"));
}
need2UpdateProcessingState = true;
}
oveAssetModel.LastModified = DateTime.Now;
_context.Update(oveAssetModel);
await _context.SaveChangesAsync();
if (need2UpdateProcessingState)
{
oveAssetModel.ProcessingState = 0;
_context.Update(oveAssetModel);
await _context.SaveChangesAsync();
}
}
catch (DbUpdateConcurrencyException) {
if (!_context.AssetModels.Any(e => e.Id == oveAssetModel.Id))
{
return(NotFound());
}
_logger.LogError("Concurrency Error updating database ");
return(Conflict());
}
return(RedirectToAction(nameof(Index)));
}
return(this.FormatOrView(oveAssetModel));
}
