public async Task <ActionResult <ComposerGenres> > PostComposerGenres(ComposerGenres composerGenres)
{
_context.ComposerGenres.Add(composerGenres);
await _context.SaveChangesAsync();
return(CreatedAtAction("GetComposerGenres", new { id = composerGenres.Id }, composerGenres));
}
public async Task <ActionResult <Piece> > DeletePiece(int id)
{
var piece = await _context.Pieces.FindAsync(id);
if (piece == null)
{
return(NotFound());
}
// custom remove genre
var genre = piece.Genre;
var composer = piece.Composer;
var cgs = composer.ComposerGenres.ToList();
int count = 0;
foreach (var cg in cgs)
{
if (cg.Genre == genre)
{
count++;
}
}
if (count == 1)
{
ComposerGenres g = _context.ComposerGenres.First(q => q.Genre == genre);
_context.ComposerGenres.Remove(g);
}
_context.Pieces.Remove(piece);
await _context.SaveChangesAsync();
return(piece);
}
public async Task <IActionResult> PutComposerGenres(int id, ComposerGenres composerGenres)
{
if (id != composerGenres.Id)
{
return(BadRequest());
}
_context.Entry(composerGenres).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ComposerGenresExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
public async Task <ActionResult <Piece> > PostPiece(Piece piece)
{
_context.Pieces.Add(piece);
/*
* custom add genre to composer's genres
*/
ComposerGenres composerGenres = new ComposerGenres();
composerGenres.Genre = piece.Genre;
composerGenres.Composer = piece.Composer;
if (!_context.ComposerGenres.Any(g => g.Genre == composerGenres.Genre && g.Composer == composerGenres.Composer))
{
_context.ComposerGenres.Add(composerGenres);
}
await _context.SaveChangesAsync();
return(CreatedAtAction("GetPiece", new { id = piece.Id }, piece));
}
