public void AddSubtitle(Subtitle sub)
{
db.Subtitles.Add(sub);
db.SaveChanges();
}
public void DeleteSubtitle(Subtitle sub)
{
db.Subtitles.Remove(sub);
db.SaveChanges();
}
public ActionResult Upload(Subtitle item, HttpPostedFileBase file)
{
var filename = Path.GetFileName(file.FileName);
var extension = Path.GetExtension(filename);
//Checks if the file extension is correct and redirects user to error page if required.
if ((extension != ".srt" && extension != ".txt"))
{
return View("UploadError");
}
Media med = db.GetMediaByName(item.Title);
Media newMedia = new Media();
// If the media doesnt exist it
// will be created automatically
if (med == null)
{
newMedia.Title = item.Title;
db.AddMedia(newMedia);
med = newMedia;
}
if (ModelState.IsValid)
{
item.MediaID = med.ID;
item.Author = User.Identity.Name;
db.AddSubtitle(item);
//Code that checks if uploaded file has content
//before the file is saved to the server.
if ((file != null) && (file.ContentLength > 0))
{
string fn = System.IO.Path.GetFileName(file.FileName);
string SaveLocation = Server.MapPath("~/App_Data/" + fn);
file.SaveAs(SaveLocation);
}
SubtitleLine srtLine = new SubtitleLine();
//Turn file to string
string srtString = new StreamReader(file.InputStream, Encoding.Default, true).ReadToEnd();
//regex for srt files from http://www.codeproject.com/Articles/32834/Subtitle-Synchronization-with-C
string pattern = @"(?<sequence>\d+)\r\n(?<start>\d{2}\:\d{2}\:\d{2},\d{3}) --\> " +
@"(?<end>\d{2}\:\d{2}\:\d{2},\d{3})\r\n(?<text>[\s\S]*?\r\n\r\n)";
//parse string and send to database
int counter = 1;
bool srtTrue = false;
foreach (string result in Regex.Split(srtString, pattern))
{
//first instance in the str format is always empty
if (counter == 1)
{
srtLine.Index = 0;
srtLine.TimeFrom = null;
srtLine.TimeTo = null;
srtLine.Text = null;
}
//second instance is "subtitle number this"
if (counter == 2)
{
srtLine.Index = Convert.ToInt32(result);
}
//tird instance is TC in
if (counter == 3)
{
srtLine.TimeFrom = result;
}
//fourth is TC out
if (counter == 4)
{
srtLine.TimeTo = result;
}
//fifth is the actual onscreen text
if (counter == 5)
{
srtLine.Text = result;
srtLine.SubtitleID = item.ID;
counter = 0;
}
counter++;
// checks to see if all columns in srtLine have been populated
// before adding a line to the database.
if ( srtLine.Index != 0
&& srtLine.TimeFrom != null
&& srtLine.TimeTo != null
&& srtLine.Text != null
&& srtLine.SubtitleID != 0)
{
db.AddSubtitleLine(srtLine);
srtTrue = true;
}
}
//If columns have been populated the format is fine and file created.
//Else entires that have been created are deleted and user directed to error page.
if (srtTrue)
{
return RedirectToAction("Index", "Home");
}
else
{
db.DeleteSubtitle(item);
db.DeleteMedia(med);
return View("UploadError");
}
}
// Gets language dropdown
ViewBag.Languages = db.GetLanguageListItems();
return View(item);
}
