如何使用Django CreateView实现依赖下拉列表？

from django.views.generic.edit import CreateView
from .models import ModelName
from .forms import YourForm

class YourCreateView(CreateView):
    model = ModelName
    form_class = YourForm
    template_name = 'your_template.html'

from django import forms
from .models import DependentModel

class YourForm(forms.ModelForm):
    dependent_field = forms.ModelChoiceField(queryset=DependentModel.objects.all())
    depended_field = forms.ChoiceField(choices=())

    class Meta:
        model = ModelName
        fields = ['dependent_field', 'depended_field']

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['depended_field'].choices = self.get_depended_field_choices()

    def get_depended_field_choices(self):
        dependent_field_value = self.cleaned_data.get('dependent_field')
        if dependent_field_value:
            # 根据dependent_field_value的值查询相关的依赖选项
            # 返回一个包含选项的元组列表，例如：[(1, '选项1'), (2, '选项2')]
            return [(1, '选项1'), (2, '选项2')]
        else:
            return []

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">提交</button>
</form>