在尝试更改django detailView上的相关模型时获取属性错误

Question

我有一个CarRent模型，它是对汽车模型的ForeignKey，在CarRent detailView上，我想要修改CarRent模型以及汽车模型，代码对于CarRent模型很好，但是更改汽车模型会导致“AttributeError at / Car /requests/4/ type对象”没有属性‘object’错误。

class Car(models.Model):
    
    car_owner = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='car_owner', on_delete=models.CASCADE)
    car_model = models.CharField(max_length=20, blank=True, null=True)
    rented = models.BooleanField(default=False)



class CarRent(models.Model):

    car = models.ForeignKey(Car, related_name='rented_car', on_delete=models.CASCADE)
    driver = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='driver_renting', on_delete=models.CASCADE)
    active_rent = models.BooleanField(default=False, null=True)
    rent_paid = models.BooleanField(default=False)



@login_required
@driver_required(redirect_field_name='app:home')
@csrf_protect
def car_rent_detail_view(request, pk):
    object = get_object_or_404(CarRent, id=pk)

    # queryset = Car.objects.get(id=pk)
    car_object = get_object_or_404(queryset, id=pk)

    paystack = PaystackAccount(
        settings.PAYSTACK_EMAIL,
        settings.PAYSTACK_PUBLIC_KEY,
        object.total_cost
    )


    context = {'object': object, 'pk_public': settings.PAYSTACK_PUBLIC_KEY, 'currency': 'NGN', 'paystack': paystack,
               }


    if request.method == 'POST':
        if paystack.verify_transaction(request.POST['reference']):
            messages.success(request, "paystack payment successfull")
            car_rented = Car.object.get(pk=pk)
            car_rented.rented = True

            rent_activation = CarRent.objects.get(pk=pk)
            rent_activation.active_rent = True
            rent_activation.rent_paid = True
            rent_activation.save()
            messages.success(request, "Your Rent has successfully being updated")

    return render(request, 'app/CarRent_detail.html', context=context)

任何帮助都将不胜感激。

Answer 1

这是一个错误，您需要使用objects来访问管理器方法，而不是对象。因此，替换：

car_rented = Car.object.get(pk=pk)
                 ^^^^^^

通过以下方式：

car_rented = Car.objects.get(rented_car__pk=pk)

您可以通过CarRent (即“rented_car”)将查询从Car模型反转到rented_car。更多信息可以在文档中找到。