public async Task <ActionResult <BookMongoDTO> > AddBook([FromBody] BookMongoDTO book)
{
var author = await writersRepository.FindWriter(book.Writer.Id);
if (author != null)
{
book.Writer = author;
}
else
{
var addWriterResult = writersRepository.AddWriter(book.Writer);
if (addWriterResult == null)
{
return(BadRequest());
}
}
var addBookResult = await booksRepository.AddBook(book);
if (addBookResult != null)
{
return(Ok(CreateLinksForBook(addBookResult)));
}
else
{
await writersRepository.DeleteWriter(book.Writer.Id);
return(BadRequest());
}
}
private BookMongoDTO CreateLinksForBook(BookMongoDTO book)
{
book.Links.Add(new LinkDTO(Url.Link("GetBook", new { id = book.Id }), "self", "GET"));
book.Links.Add(new LinkDTO(Url.Link("UpdateBook", null), "update_book", "PUT"));
book.Links.Add(new LinkDTO(Url.Link("DeleteBook", new { id = book.Id }), "delete_book", "DELETE"));
if (book.Writer != null)
{
book.Writer = CreateLinksForWriter(book.Writer);
}
return(book);
}
public async Task <bool> UpdateBook(BookMongoDTO book)
{
var updateResult = await
libraryContext
.Books
.ReplaceOneAsync(
filter : g => g.Id == book.Id,
replacement : book);
return(updateResult.IsAcknowledged &&
updateResult.ModifiedCount > 0);
}
public async Task <BookMongoDTO> AddBook(BookMongoDTO book)
{
try
{
await libraryContext.Books.InsertOneAsync(book);
return(book);
}
catch (Exception)
{
return(null);
}
}
public async Task <IActionResult> UpdateBook(BookMongoDTO book)
{
var result = await booksRepository.UpdateBook(book);
if (result)
{
return(Ok("Resource updated!"));
}
else
{
return(BadRequest());
}
}
