public async Task <IEnumerable <Book> > GetBooksAsync(
Author author,
[ScopedService] BookRefDbContext dbContext,
BookByIdDataLoader bookById,
CancellationToken cancellationToken)
{
long[] bookIds = await dbContext.Books
.Where(s => s.Id == author.Id)
.Select(s => s.Id)
.ToArrayAsync();
return(await bookById.LoadAsync(bookIds, cancellationToken));
}
public async Task <IEnumerable <Book> > GetBooksAsync(
Category category,
[ScopedService] BookRefDbContext dbContext,
BookByIdDataLoader bookById,
CancellationToken cancellationToken)
{
long[] bookIds = await dbContext.Categories
.Where(s => s.Id == category.Id)
.SelectMany(s => s.BookCategories.Select(t => t.BookId))
.ToArrayAsync();
return(await bookById.LoadAsync(bookIds, cancellationToken));
}
public async Task <MyRecommendations> GetRecommendationsForBook(
[ID(nameof(Book))] long id,
BookByIdDataLoader dataLoader,
[Service] IGetClaimsProvider claimsProvider,
[ScopedService] BookRefDbContext context,
CancellationToken cancellationToken)
{
var library = context.Libraries
.First(e => e.Id == claimsProvider.LibraryId);
var result = new MyRecommendations();
var source = await dataLoader.LoadAsync(id, cancellationToken);
result.SourceBook = source;
result.BookRecommedations = library.BookRecommedations.Where(e => e.SourceBookId == source.Id).ToList();
result.PersonRecommedations = library.PersonRecommedations.Where(e => e.SourceBookId == source.Id).ToList();
return(result);
}
public Task <IReadOnlyList <Book> > GetBooksByIdAsync(
[ID(nameof(Book))] long[] ids,
BookByIdDataLoader dataLoader,
CancellationToken cancellationToken) =>
dataLoader.LoadAsync(ids, cancellationToken);
public Task <Book> GetBookByIdAsync(
[ID(nameof(Book))] long id,
BookByIdDataLoader dataLoader,
CancellationToken cancellationToken) =>
dataLoader.LoadAsync(id, cancellationToken);
public async Task <IReadOnlyList <BookModel> > GetBooks(AuthorModel authorModel, BookByIdDataLoader dataLoader, [ScopedService] LibraryDbContext context, CancellationToken cancellationToken)
{
int[] bookIds = await context.Books
.Where(x => x.AuthorId == authorModel.Id)
.Select(x => x.Id)
.ToArrayAsync();
return(await dataLoader.LoadAsync(bookIds, cancellationToken));
}
