Question

在我的Car模型中，我有以下字段：name, manufacturer, body, car_type and description。

我已经实现了一个搜索栏，但是当我搜索它时抱怨：

Related Field got invalid lookup: icontains

on Q(car_type__icontains=query)

这里究竟是什么问题？

query = request.GET.get("q")
if query:
    car = car.filter(
        Q(name__icontains=query) |
        Q(manufacturer__icontains=query) |
        Q(body__icontains=query) |
        Q(car_type__icontains=query)
    ).distinct()

的 Models.py

class CarModelBase(models.Model):

    class Meta:
        abstract = True
    name = models.CharField(max_length=100)

class CarType(CarModelBase, SortableModelBase):
    class Meta(CarModelBase.Meta):
        ordering = ['order']
        verbose_name = 'Car Type'
        verbose_name_plural = 'Car Types'

    def __str__(self):
        return self.name

class Car(CarModelBase):
    manufacturer = SortableForeignKey(Manufacturer)
    car_type = SortableForeignKey(CarType)
    body = SortableForeignKey(Body)
    description = models.TextField()

Answer 1

如果car_type是外键，则您无法Q(car_type__icontains=query)。您需要在CarTyoe模型上指定要搜索的字段，例如：

Q(car_type__name__icontains=query)

Q Lookups TypeError Django

1 个答案: