public ActionResult Edit(Music music)
{
if (ModelState.IsValid)
{
db.Entry(music).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(music);
}
public ActionResult Create(String title, String artist, String genre, HttpPostedFileBase mp3)
{
//Error checking for input
if(title == "" || artist == "" || genre == "" || mp3 == null)
{
ViewBag.Error = "Please ensure all fields are populated and a file has been selected";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
else if(!mp3.FileName.EndsWith(".mp3"))
{
ViewBag.Error = "At this time only files with a .mp3 file extension may be used";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
IList<Music> sameSongs = db.Music.Where(sl => sl.Title.Equals(title) && sl.Artist.Equals(artist)).ToList();
if (sameSongs.Count() != 0)
{
ViewBag.Error = "This song has already been uploaded";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
//Create music object
Music music = new Music
{
Title = title,
Artist = artist,
Genre = genre,
Complete = false
};
//Add music object to db and save mp3 to listed application directory
music.FilePath = "~/Content/MusicUploads/" + music.Artist + "-" + music.Title + ".mp3";
db.Music.Add(music);
if (mp3 != null)
mp3.SaveAs(Request.PhysicalApplicationPath + "Content\\MusicUploads\\" + music.Artist + "-" + music.Title + ".mp3");
//Calculate mp3 duration
ShellFile f = ShellFile.FromFilePath(Request.PhysicalApplicationPath + "Content\\MusicUploads\\" + music.Artist + "-" + music.Title + ".mp3");
double nanoseconds;
double.TryParse(f.Properties.System.Media.Duration.Value.ToString(), out nanoseconds);
int duration = (int)(nanoseconds * 0.0000001);
//Make sure song can be processed and is at least 10 seconds in length
if (duration < 10)
{
ViewBag.Error = "Song is too short or has a corrupt duration header. Please upload another file";
ViewBag.SongTitle = title;
ViewBag.Artist = artist;
ViewBag.Genre = genre;
return View();
}
//Initialize values for first segment
int segID = 0;
int start = 0;
int end = 5;
int clipLength = 5;
//Create all segments (except possibly last one)
while (end <= duration)
{
LyricSegment newSegment = new LyricSegment();
newSegment.LyricSegmentID = segID;
newSegment.MusicID = music.MusicID;
newSegment.Start = start;
newSegment.End = end;
start += clipLength;
end += clipLength;
//If last segment wont be created, append to end of active segment
if (end > duration)
newSegment.End = duration;
db.Lyrics.Add(newSegment);
segID++;
}
//Save changes to db
db.SaveChanges();
return RedirectToAction("Index");
}
private void songCompletion(Music song)
{
IList<LyricSegment> segments = db.Lyrics.Where(ls => ls.MusicID == song.MusicID && ls.Complete == false).ToList();
if (segments.Count() == 0)
song.Complete = true;
}