public async Task <AuthorDto> GetAuthorAsync(Guid authorId)
{
if (authorId == Guid.Empty)
{
throw new ArgumentNullException(nameof(authorId));
}
AuthorEntity author = await _context.Authors.FirstOrDefaultAsync(x => x.Id == authorId);
return(author.ToDto());
}
public async Task <AuthorDto> UpdateAuthorAsync(Guid authorId, AuthorUpdateRequest authorRequest)
{
if (authorId == Guid.Empty)
{
throw new ArgumentNullException(nameof(authorId));
}
AuthorEntity author = await _context.Authors.FirstOrDefaultAsync(x => x.Id == authorId);
if (author == null)
{
return(null);
}
authorRequest.ToUpdateEntity(ref author);
await _context.SaveChangesAsync();
return(author.ToDto());
}