library_views.py 文件源码

def selected_category(request):
    """
    Returns books from selected category.
    """
    user = get_object_or_404(TheUser, auth_token=request.data.get('user_token'))
    category = get_object_or_404(Category, id=request.data.get('category_id'))

    books = Book.objects.filter(id_category=category).order_by('book_name')
    filtered_books = Book.exclude_private_books(user.id_user, books)

    paginator = Paginator(filtered_books, OUTPUT_BOOKS_PER_PAGE)
    page = paginator.page(request.data.get('page'))
    next_page = page.has_next()
    page_books = page.object_list

    return Response({'status': 200,
                     'detail': 'successful',
                     'data': {'books': [BookSerializer(book).data for book in page_books],
                              'next_page': page.next_page_number() if next_page else 0}})


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