public async Task ValidateAsync(IAlbumContainer albumContainer)
{
if (albumContainer == null)
{
throw new ArgumentNullException(nameof(albumContainer));
}
var album = await this.GetBy(albumContainer);
if (albumContainer.AlbumId.HasValue && album == null)
{
throw new InvalidOperationException($"Album not found by id {albumContainer.AlbumId}");
}
}
public async Task ValidateAsync(IAlbumContainer albumContainer)
{
if (albumContainer == null)
{
throw new ArgumentNullException(nameof(albumContainer));
}
var album = await GetAsync(albumContainer);
if (album == null)
{
throw new InvalidOperationException($"Album with id {albumContainer.AlbumId} not found");
}
}
public async Task <Album> GetByAsync(IAlbumContainer album)
{
var result = Mapper.Map <Album>(await Context.Album
.Select(x => new Album
{
Id = x.Id, Name = x.Name, ImageUrl = x.ImageUrl,
Artist = new Artist
{
Id = x.Artist.Id, Name = x.Artist.Name, ImageUrl = x.Artist.ImageUrl
},
Song = x.Song.Select(song => new Song {
Id = song.Id, Name = song.Name, Duration = song.Duration
})
})
.FirstOrDefaultAsync(x => x.Id == album.AlbumId));
result.Artist.Album = null;
return(result);
}
private Task <Album> GetBy(IAlbumContainer albumContainer)
{
return(this.AlbumDataAccess.GetByAsync(albumContainer));
}
public async Task <Album> GetByAsync(IAlbumContainer album)
{
return(album.AlbumId.HasValue
? this.Mapper.Map <Album>(await this.Context.Album.FirstOrDefaultAsync(x => x.Id == album.AlbumId))
: null);
}
public async Task <Album> GetAsync(IAlbumContainer albumContainer)
{
return(await AlbumDataAccess.GetByAsync(albumContainer));
}
