public IHttpActionResult Create(SongModel song)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var artistOfSong = this.data.Artist.SelectAll().FirstOrDefault(a => a.Id == song.Id);
if (artistOfSong == null)
{
return BadRequest("Can not find artist by given id!");
}
this.data.Songs.Add(new Song
{
Title = song.Title,
Genre = song.Genre,
Year = song.Year,
ArtistId = artistOfSong.Id
});
this.data.SaveChanges();
return Ok(HttpStatusCode.Created);
}
public IHttpActionResult Update(int id, SongModel song)
{
var existingSong = this.data.Songs.SelectAll().FirstOrDefault(a => a.Id == id);
if (existingSong == null)
{
return BadRequest("No such song with this id!");
}
existingSong.Title = (song.Title != null) ? song.Title : existingSong.Title;
existingSong.Genre = (song.Genre != null) ? song.Genre : existingSong.Genre;
existingSong.Year = (song.Year != 0) ? song.Year : existingSong.Year;
this.data.Songs.Update(existingSong);
this.data.SaveChanges();
return Ok(HttpStatusCode.OK);
}
public IHttpActionResult Update(int albumId, SongModel song)
{
var album = this.data.Albums.SelectAll().FirstOrDefault(a => a.Id == albumId);
var albumSong = album.Songs.FirstOrDefault(s => s.Id == song.Id);
if (albumSong == null)
{
return BadRequest("The album does not have that song!");
}
albumSong.Genre = song.Genre;
albumSong.Title = song.Title;
albumSong.Year = song.Year;
this.data.Songs.Update(albumSong);
this.data.SaveChanges();
return Ok(HttpStatusCode.OK);
}