public async Task <IActionResult> Edit(int id, [Bind("FileName,Description,Category,UploadDateTime,File")] PDFDocumentEditViewModel viewModel)
{
if (!ModelState.IsValid)
{
return(View(viewModel));
}
byte[] newAttachment = null;
if (viewModel.File != null) //new file attached
{
PDFDocumentValidator.ValidatePDFAttachment(viewModel.File, ModelState);
if (!ModelState.IsValid)
{
return(View(viewModel));
}
newAttachment = FileHelpers.ReadBytes(viewModel.File);
}
var sourceDocument = GetDocument(id);
if (sourceDocument == null)
{
return(NotFound());
}
//updates sourceDocument with values from viewModel, replaces Data if newAttachment is not null
sourceDocument = PDFDocumentViewModelToModelHelper.ViewModelToModel(viewModel, newAttachment, sourceDocument);
try
{
_context.Update(sourceDocument);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!PDFDocumentExists(viewModel.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
public async Task <IActionResult> Create([Bind("FileName,Description,Category,File")] PDFDocumentCreateViewModel viewModel)
{
if (!ModelState.IsValid)
{
return(View(viewModel));
}
PDFDocumentValidator.ValidatePDFAttachment(viewModel.File, ModelState);
if (!ModelState.IsValid)
{
return(View(viewModel));
}
var fileData = FileHelpers.ReadBytes(viewModel.File);
var PDFDocument = PDFDocumentViewModelToModelHelper.ViewModelToModel(viewModel, fileData);
_context.Add(PDFDocument);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
