在Django Formset中过滤对象

Question

我使用inlineformset_factory来生成一个formset,如下所示:

FormSet = inlineformset_factory(Model1, Model2, extra=0)
if request.method =="POST":
    formset = FormSet(request.POST, instance=model1_object)
    if formset.is_valid():
        formset.save()
        return HttpResponseRedirect( reverse-blah )
else:
    formset = PupsFormSet(instance=model1_object,)
return render_to_response("template.html", {"formset":formset, 'model1_object':model1_object},context_instance=RequestContext(request)) 

我有两个问题

1. 如何限制Model2对象,以便不是所有适用的对象都存在,而只是过滤的子集？
2. 有没有人有任何使用formset的基于类的视图的示例代码？

更新了功能代码回答问题#1

FormSet = inlineformset_factory(Model1, Model2, extra=0)
if request.method =="POST":
    formset = FormSet(request.POST, instance=model1_object, queryset=Model2.objects.filter(foo=bar))
    if formset.is_valid():
        formset.save()
        return HttpResponseRedirect( reverse-blah )
else:
    formset = PupsFormSet(instance=model1_object, queryset=Model2.objects.filter(foo=bar))
return render_to_response("template.html", {"formset":formset, 'model1_object':model1_object},context_instance=RequestContext(request))

Answer 1

这会有帮助吗？https://docs.djangoproject.com/en/dev/topics/forms/modelforms/#changing-the-queryset

基本上,在创建formset时尝试使用queryset kwarg.