public async Task ValidateAsync(IGenreContainer genreContainer)
{
if (genreContainer == null)
{
throw new ArgumentNullException(nameof(genreContainer));
}
var genre = await this.GetBy(genreContainer);
if (genreContainer.GenreId.HasValue && genre == null)
{
throw new InvalidOperationException($"Genre not found by id {genreContainer.GenreId}");
}
}
public async Task <Genre> GetByAsync(IGenreContainer iGenreContainer)
{
return(iGenreContainer.GenreId.HasValue
? this.Mapper.Map <Genre>(await this.Context.Genre.FirstOrDefaultAsync(x => x.Id == iGenreContainer.GenreId))
: null);
}
private Task <Genre> GetBy(IGenreContainer genreContainer)
{
return(this.GenreDataAccess.GetByAsync(genreContainer));
}
