Django ModelChoiceField:根据url中的pk过滤对象

# views.py
from django.shortcuts import render
from django import forms
from .models import YourModel

class YourForm(forms.Form):
    your_field = forms.ModelChoiceField(queryset=YourModel.objects.none())

def your_view(request, pk):
    # 根据url中的pk参数过滤对象
    filtered_objects = YourModel.objects.filter(some_field=pk)
    
    if request.method == 'POST':
        form = YourForm(request.POST)
        form.fields['your_field'].queryset = filtered_objects
        if form.is_valid():
            # 处理表单提交逻辑
            pass
    else:
        form = YourForm()
        form.fields['your_field'].queryset = filtered_objects
    
    return render(request, 'your_template.html', {'form': form})

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