public ActionResult Edit(
[Bind(Include = "Id,TaskTitle,TaskDescription,TaskAvailable,AvailableDate,DueDate,PointsWorth")] Assignment
assignment)
{
if (ModelState.IsValid)
{
for (int i = 0; i < Request.Files.Count; i++)
{
var file = Request.Files[i];
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
AssignmentFileDetail fileDetail = new AssignmentFileDetail()
{
FileName = fileName,
Extension = Path.GetExtension(fileName),
FileId = Guid.NewGuid(),
AssignmentId = assignment.Id
};
var path = Path.Combine(Server.MapPath("~/App_Data/Upload/"),
fileDetail.FileId + fileDetail.Extension);
file.SaveAs(path);
_context.Entry(fileDetail).State = EntityState.Added;
}
}
_context.Entry(assignment).State = EntityState.Modified;
_context.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(assignment));
}
public JsonResult DeleteFile(string id)
{
if (String.IsNullOrEmpty(id))
{
Response.StatusCode = (int)HttpStatusCode.BadRequest;
return(Json(new { Result = "Error" }));
}
try
{
Guid guid = new Guid(id);
AssignmentFileDetail fileDetail = _context.AssignmentFileDetails.Find(guid);
if (fileDetail == null)
{
Response.StatusCode = (int)HttpStatusCode.NotFound;
return(Json(new { Result = "Error" }));
}
//Remove from database
_context.AssignmentFileDetails.Remove(fileDetail);
_context.SaveChanges();
//Delete file from the file system
var path = Path.Combine(Server.MapPath("~/App_Data/Upload/"), fileDetail.FileId + fileDetail.Extension);
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
return(Json(new { Result = "OK" }));
}
catch (Exception ex)
{
return(Json(new { Result = "ERROR", Message = ex.Message }));
}
}
private List <AssignmentFileDetail> AddFilesDetailsToAssignment()
{
List <AssignmentFileDetail> fileDetails = new List <AssignmentFileDetail>();
for (int i = 0; i < Request.Files.Count; i++)
{
var file = Request.Files[i];
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
AssignmentFileDetail fileDetail = new AssignmentFileDetail()
{
FileName = fileName,
Extension = Path.GetExtension(fileName),
FileId = Guid.NewGuid()
};
fileDetails.Add(fileDetail);
var path = Path.Combine(Server.MapPath("~/App_Data/Upload/"),
fileDetail.FileId + fileDetail.Extension);
file.SaveAs(path);
}
}
return(fileDetails);
}
