/// <summary>
/// Deletes the song depending if the songID already exists
/// </summary>
/// <param name="songID">the song that is being deleted</param>
/// <returns>list of song</returns>
public void DeleteSong(int songID)
{
try
{
using (AudioDBEntities context = new AudioDBEntities())
{
bool isSong = IsSongID(songID);
if (isSong == true)
{
tblSong songToDelete = (from r in context.tblSongs where r.SongID == songID select r).First();
context.tblSongs.Remove(songToDelete);
context.SaveChanges();
}
else
{
MessageBox.Show("Cannot delete the song");
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex.Message.ToString());
}
}
/// <summary>
/// Adds the user
/// </summary>
/// <param name="user">the user that is being added</param>
/// <returns>a new user</returns>
public tblUser AddUser(tblUser user)
{
try
{
using (AudioDBEntities context = new AudioDBEntities())
{
if (FindUserByUsername(user.Username) == 0)
{
tblUser newUser = new tblUser
{
Username = user.Username,
UserPassword = user.UserPassword
};
context.tblUsers.Add(newUser);
context.SaveChanges();
user.UserID = newUser.UserID;
return(newUser);
}
else
{
user.UserID = FindUserByUsername(user.Username);
return(user);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex.Message.ToString());
return(null);
}
}
public IEnumerable <AudioRecord> SearchTrack(string SearchTrack)
{
var db = new AudioDBEntities();
var DATA_ITEMS = db.sp_SearchTrack(SearchTrack);
var SearchTrackList = new List <AudioRecord>();
foreach (var r in DATA_ITEMS.ToList())
{
SearchTrackList.Add(new AudioRecord {
Name = r.Name.ToString(), Title = r.Title.ToString()
});
}
return(SearchTrackList);
}
public IEnumerable <AudioRecord> TrackListByArtist(string Artist)
{
var db = new AudioDBEntities();
var DATA_ITEMS = db.sp_SongListByArtist(Artist);
var TrackList = new List <AudioRecord>();
foreach (var r in DATA_ITEMS.ToList())
{
TrackList.Add(new AudioRecord {
Name = r.Name.ToString(), Title = r.Title.ToString()
});
}
return(TrackList);
}
public IEnumerable <AudioRecord> AudioList(int start, int end)
{
var db = new AudioDBEntities();
var DATA_ITEMS = db.sp_AudioPagination(start, end);
var selectList = new List <AudioRecord>();
foreach (var r in DATA_ITEMS.ToList())
{
selectList.Add(new AudioRecord {
Name = r.Name.ToString(), Title = r.Title.ToString()
});
}
return(selectList);
}
/// <summary>
/// Gets all information about songs
/// </summary>
/// <returns>a list of found songs</returns>
public List <tblSong> GetAllSongs()
{
try
{
using (AudioDBEntities context = new AudioDBEntities())
{
List <tblSong> list = new List <tblSong>();
list = (from x in context.tblSongs select x).ToList();
return(list);
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex.Message.ToString());
return(null);
}
}
/// <summary>
/// Gets all user songs
/// </summary>
/// <param name="userID">Gets the current user id</param>
/// <returns>a list of found songs</returns>
public List <tblSong> GetAllSongsFromCurrentUser(int userID)
{
try
{
List <tblSong> list = new List <tblSong>();
using (AudioDBEntities context = new AudioDBEntities())
{
for (int i = 0; i < GetAllSongs().Count; i++)
{
if (GetAllSongs()[i].UserID == userID)
{
list.Add(GetAllSongs()[i]);
}
}
return(list);
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex.Message.ToString());
return(null);
}
}
/// <summary>
/// Creates a song
/// </summary>
/// <param name="song">the song that is being added</param>
/// <returns>a new song</returns>
public tblSong AddSong(tblSong song)
{
try
{
using (AudioDBEntities context = new AudioDBEntities())
{
if (song.SongID == 0)
{
tblSong newSong = new tblSong
{
SongName = song.SongName,
SongAuthor = song.SongAuthor,
SongSeconds = song.SongSeconds,
SongMinutes = song.SongMinutes,
SongHours = song.SongHours,
UserID = LoggedUser.CurrentUser.UserID
};
context.tblSongs.Add(newSong);
context.SaveChanges();
song.SongID = newSong.SongID;
return(song);
}
else
{
return(song);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex.Message.ToString());
return(null);
}
}
/// <summary>
/// Search if song with that ID exists in the song table
/// </summary>
/// <param name="songID">Takes the song id that we want to search for</param>
/// <returns>True if the song exists</returns>
public bool IsSongID(int songID)
{
try
{
using (AudioDBEntities context = new AudioDBEntities())
{
int result = (from x in context.tblSongs where x.SongID == songID select x.SongID).FirstOrDefault();
if (result != 0)
{
return(true);
}
else
{
return(false);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception " + ex.Message.ToString());
return(false);
}
}
