Django UpdateView 错过了查询集

Question

我想不通，我的代码有什么问题。我尝试了很多东西，我的 createview 正在工作。但是在那里我使用航班而不是门把手作为 pk。对我来说这似乎没问题，我不明白为什么控制台告诉我缺少查询集。模型.pyclass Airport(models.Model):    name = models.CharField(max_length=255, unique=True)class Flight(models.Model):    start = models.ForeignKey(Airport, on_delete=models.CASCADE,        related_name='start')    end = models.ForeignKey(Airport, on_delete=models.CASCADE,        related_name='end')    number = models.CharField(max_length=5, default="EJT12")class Gate(models.Model):    airport = models.ForeignKey(Airport, on_delete=models.CASCADE)    number = models.IntegerField(default=0)class GateHandling(models.Model):    gate = models.ForeignKey(Gate, on_delete=models.CASCADE)    flight = models.ForeignKey(Flight, on_delete=models.CASCADE)网址.pypath('gate-handling/<int:pk>/update', views.GateHandlingUpdate.as_view(), name='gate_handling_update'),详细信息.html{% for flight in flights_arriving %}    {% for gate_handling in flight.gatehandling_set.all %}      <p>{{gate_handling}} <a href="{% url 'management:gate_handling_update' gate_handling.pk %}">Change</a></p>    {% empty %}      <p>Gate <a href="{% url 'management:gate_handling_create' flight.pk %}">Assign</a></p>    {% endfor %}{% endfor %}视图.pyclass GateHandlingUpdate(UpdateView):    form_class = GateHandlingUpdateForm    template_name = 'management/gatehandling_update.html'    def get_form_kwargs(self):        kwargs = super().get_form_kwargs()        kwargs['airport'] = Gate.objects.get(gatehandling=self.object).airport        kwargs['flight'] = Flight.objects.get(pk=self.object.flight.pk)        return kwargs表格.pyclass GateHandlingUpdateForm(ModelForm):    class Meta:        model = GateHandling        fields = ['gate', 'flight']

Answer 1

这是回溯需要注意的部分：

Define GateHandlingUpdate.model, GateHandlingUpdate.queryset, or override GateHandlingUpdate.get_queryset().

在这种情况下，第一个建议是最简单的。只是设置model = GateHandling在视图上。

class GateHandlingUpdate(UpdateView):

    model = GateHandling

    form_class = GateHandlingUpdateForm

    template_name = 'management/gatehandling_update.html'