public IActionResult CreateBookForAuthor(Guid authorId, [FromBody] CreateBookDto createBookDto)
{
if (createBookDto == null)
{
return(BadRequest());
}
if (string.Equals(createBookDto.Title, createBookDto.Description))
{
ModelState.AddModelError(nameof(CreateBookDto), "The title cannot be the same as the description");
}
if (!ModelState.IsValid)
{
return(new UnprocessableEntityObjectResult(ModelState));
}
if (!_libraryRepository.AuthorExists(authorId))
{
return(NotFound());
}
var book = createBookDto.ToBook(authorId);
_libraryRepository.AddBookForAuthor(authorId, book);
_libraryRepository.Save();
var bookDto = new BookDto(book);
bookDto = CreateLinksForBook(bookDto);
return(CreatedAtRoute(nameof(GetBookForAuthor), new { authorId, id = book.Id }, bookDto));
}
private static async Task <BookDto> CreateBook(CreateBookDto createBookDto,
IRepository <Book> bookRepository)
{
Book book = createBookDto.ToBook();
Book?createdBook = await bookRepository.CreateAsync(book);
return(createdBook.ToBookDto());
}
public async Task <BookDto> CreateBookAsync(CreateBookDto createBookDto)
{
var book = await _repository.Books
.AsNoTracking()
.FirstOrDefaultAsync(b => b.Title.Equals(createBookDto.Title));
if (!(book is null))
{
throw new EntityAlreadyExistsException("Title duplication");
}
var newBook = createBookDto.ToBook();
await _repository.Books.AddAsync(newBook);
await _repository.SaveChangesAsync();
return(newBook.AdaptToDto());
}