selected_book_views.py 文件源码

def change_rating(request):
    if request.is_ajax():
        rating_form = ChangeRatingForm(request.POST)

        if rating_form.is_valid():
            with transaction.atomic():
                set_rating(request, rating_form)

                book_rating = BookRating.objects.filter(id_book=Book.objects.get(id=rating_form.cleaned_data['book']))

                data = {'avg_rating': round(book_rating.aggregate(Avg('rating'))['rating__avg'], 1),
                        'rating_count': '({})'.format(book_rating.count())}

                return HttpResponse(json.dumps(data), content_type='application/json')
    else:
        return HttpResponse(status=404)


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