public async Task UploadFileAsync(Controller controller, HttpPostedFileBase file, int assignmentId, string studentId)
{
SubmissionDTO submission = await service.GetByCompositeKeysAsync(assignmentId, studentId);
if (submission == null)
{
throw new Exception();
}
if (file != null && file.ContentLength > 0)
{
try
{
if (submission.Completed)
{
controller.ViewBag.FileStatus = "This assignment is already complete!You cannot updload a file to this assignment.";
return;
}
SubmitFileDTOBuilderData builderData = new SubmitFileDTOBuilderData(file);
SubmitFileDTO newSubmitFile = dtoFactory.CreateDTO <SubmitFileDTOBuilderData, SubmitFileDTO>(builderData);
string path = Path.Combine(controller.Server.MapPath("~/Files/Assignments"), newSubmitFile.FileGuid);
file.SaveAs(path);
service.DeleteFileFromFSandDBIfExists(submission.SubmitFile);
submission.SubmitFile = newSubmitFile;
submission.Submitted = DateTime.Now;
await service.SaveChangesAsync();
}
catch (Exception)
{
controller.ViewBag.FileStatus = "Error while file uploading.";
}
}
else
{
controller.ModelState.AddModelError("", "Upload file is not selected!");
}
return;
}
