public bool DeletePlaylist(Playlist playlist)
{
try
{
PlaylistTable.DeleteOnSubmit(playlist);
PlaylistTable.Context.SubmitChanges();
return true;
}
catch (Exception)
{
return false;
}
}
public int SavePlaylist(Playlist playlist)
{
try
{
if (playlist.PlaylistId == 0)
{
PlaylistTable.InsertOnSubmit(playlist);
}
else
{
PlaylistTable.Context.Refresh(RefreshMode.KeepChanges, playlist);
}
PlaylistTable.Context.SubmitChanges();
return playlist.PlaylistId;
}
catch (Exception)
{
return -1;
}
}
public int SavePlaylist(int userId, Playlist playlist)
{
using (var tranScope = new TransactionScope())
{
try
{
var playlistId = playlist.PlaylistId;
var newPlaylist = (playlistId == 0);
if (newPlaylist)
{
playlistId = SqlPlaylistRepository.SavePlaylist(playlist);
}
if (playlist.PlaylistSongCollection.Count > 0 && SavePlaylistSongs(UpdatePlaylistSongsPlaylistId(playlist.PlaylistId, playlist.PlaylistSongCollection)))
{
if (SaveUserPlaylist(userId, playlistId, newPlaylist))
{
tranScope.Complete();
return playlistId;
}
}
else
{
return -1;
}
}
catch
{
return -1;
}
}
return -1;
}
public Playlist GetPlaylistById(int playlistId)
{
var playlist = SqlPlaylistRepository.Playlist.Where(p => p.PlaylistId == playlistId).FirstOrDefault();
if (playlist != null)
{
playlist.PlaylistSongCollection = GetPlaylistSongCollection(playlistId);
}
else
{
playlist = new Playlist();
playlist.PlaylistSongCollection = new List<PlaylistSong>();
}
return playlist;
}
public string SavePlaylist(string form, bool newPlaylist)
{
var result = "The playlist could not be saved. Please try again. If the problem persists, please contact us at [email protected]";
var formCollection = form.Split('&');
if (!string.IsNullOrEmpty(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistName")) && !(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistName").Equals("New Playlist")))
{
// check if a playlist with this name already exists
var playlist = WebService.GetPlaylistByName(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistName"));
var playlistId = 0;
if (playlist.PlaylistId > 0)
{
// then check if it belongs to this user
var userPlaylist = WebService.GetUserPlaylistsByUserId(WebSecurity.CurrentUserId).Where(x => x.PlaylistId == playlist.PlaylistId).FirstOrDefault();
if (userPlaylist != null)
{
playlistId = playlist.PlaylistId;
}
}
if (playlistId > 0 && newPlaylist)
{
result = "Warning! This name is already in use. Please select a new name or load the playlist with this name and add this song to it.";
return result;
}
if (playlistId == 0 && !string.IsNullOrEmpty(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistId")))
{
if (int.TryParse(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistId"), out playlistId))
{
playlistId = Convert.ToInt32(MusicManagerBase.ReturnFormItemValue(formCollection, "playlistId"));
}
}
var playlistSongCollection = PopulatePlaylistSongs(formCollection, playlistId);
playlist = new Playlist()
{
Active = true,
CreatedDate = DateTime.Now,
PlaylistId = playlistId,
PlaylistName = MusicManagerBase.ReturnFormItemValue(formCollection, "playlistName"),
PlaylistSongCollection = playlistSongCollection
};
try
{
playlistId = WebService.SavePlaylist(WebSecurity.CurrentUserId, playlist);
if (playlistId > 0)
{
result = "The playlist has been saved successfully!&" + playlistId;
}
}
catch (Exception ex)
{
return result;
}
}
else
{
result = "Please enter a valid name for your playlist!";
}
return result;
}
