public IEnumerable <AuthorGetViewModel> GetAuthors()
{
List <AuthorInBook> authors = _authorInBookRepository.GetAll();
var getAuthorsViewModel = authors.GroupBy(a => a.Author.Id).Select(x => new AuthorGetViewModel()
{
Author = x.FirstOrDefault()?.Author,
Books = x.Select(z => z.Book).ToList()
});
return(getAuthorsViewModel);
}
public IEnumerable <BookGetViewModel> GetBooks()
{
List <AuthorInBook> books = _authorInBookRepository.GetAll();
var getBooksViewModel = books.GroupBy(x => x.Id).Select(x => new BookGetViewModel()
{
Book = x.FirstOrDefault()?.Book,
Authors = x.Select(z => z.Author).ToList()
});
return(getBooksViewModel);
}