python - 使用 django rest 框架自定义 lookup_field，无法解析细节

Question

我得到的错误是

ImproperlyConfigured at /usercombo/
Could not resolve URL for hyperlinked relationship using view name "usercombo-detail". You may have failed to include the related model in your API, or incorrectly configured the `lookup_field` attribute on this field.

在我看来.py

class UserComboViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows UserCombo to be viewed or edited.
    """
    queryset = UserCombo.objects.all()
    serializer_class = UserComboSerializer
    permission_classes = (IsAuthenticated,EmailConfirmationPermission) 
    lookup_field='customURL'

    def get_queryset(self):
        return  UserCombo.objects.filter(user=self.request.user)

在我的 serializer.py 中:

class UserCombo(serializers.HyperlinkedModelSerializer):
    customURL = serializers.CharField(
       required=False,)

    data = JSONSerializerField()

    class Meta:
        model = UserCombo
        unique_together = (("product", "user"),)
        fields = ('url', 'user', 'product', 'data', 'customURL', 'is_active')
        lookup_field ='customURL'

如果我删除两条 lookup_field 行，一切正常，但 usercombo 对象的 lookup_field 是 pk。

Answer 1

在 django-rest-framework 版本 3.2 中，使用 lookup_field 作为 ModelSerializer.Meta 的选项似乎已被删除。此错误是由于此删除。仍然可以将 lookup_field 与 extra_kwargs 一起使用。

http://www.django-rest-framework.org/topics/3.2-announcement/