public BookType(IBooksDataSource booksDataSource, IAuthorsDataSource authorsDataSource)
{
Name = "Book";
Field(b => b.Id).Description("The id of the book.");
Field(b => b.Name).Description("The name of the book.");
Field <AuthorType>(
"author",
resolve: context => authorsDataSource.GetAuthor(context.Source.AuthorId)
);
}
public Types.Book EditBook(int id, BookInput book)
{
if (book == null)
{
return(null);
}
var existingBook = booksDataSource.GetBook(id);
if (existingBook == null)
{
return(null);
}
existingBook.Name = book.Name;
existingBook.AuthorId = book.AuthorId;
var author = authorsDataSource.GetAuthor(book.AuthorId);
return(BookMapper.ConvertModelBookToGraphQLBook(existingBook, author));
}
public Query(IBooksDataSource booksDataSource, IAuthorsDataSource authorsDataSource)
{
Name = "Query";
Field <BookType>(
"book",
arguments: new QueryArguments(
new QueryArgument <NonNullGraphType <IdGraphType> > {
Name = "id", Description = "id of the book"
}
),
resolve: context => booksDataSource.GetBook(context.GetArgument <int>("id"))
);
Field <StringGraphType>(
"bookSource",
arguments: new QueryArguments(
new QueryArgument <NonNullGraphType <IdGraphType> > {
Name = "id", Description = "id of the book"
}
),
resolve: context => JsonConvert.SerializeObject(booksDataSource.GetBook(context.GetArgument <int>("id")))
);
Field <ListGraphType <BookType> >(
"books",
resolve: context => booksDataSource.GetBooks()
);
Field <IntGraphType>(
"booksCount",
resolve: context => booksDataSource.GetBooks().Count
);
Field <AuthorType>(
"author",
arguments: new QueryArguments(
new QueryArgument <NonNullGraphType <IdGraphType> > {
Name = "id", Description = "id of the author"
}
),
resolve: context => authorsDataSource.GetAuthor(context.GetArgument <int>("id"))
);
Field <StringGraphType>(
"authorSource",
arguments: new QueryArguments(
new QueryArgument <NonNullGraphType <IdGraphType> > {
Name = "id", Description = "id of the author"
}
),
resolve: context => JsonConvert.SerializeObject(authorsDataSource.GetAuthor(context.GetArgument <int>("id")))
);
Field <ListGraphType <AuthorType> >(
"authors",
resolve: context => authorsDataSource.GetAuthors()
);
Field <IntGraphType>(
"authorsCount",
resolve: context => authorsDataSource.GetAuthors().Count
);
}
private Book ConvertToGraphQLBook(Model.Book modelBook, bool includeAuthor = false)
{
var modelAuthor = includeAuthor ? authorsDataSource.GetAuthor(modelBook.AuthorId) : null;
return(BookMapper.ConvertModelBookToGraphQLBook(modelBook, modelAuthor));
}
