python - 使用 modelformsets ('ManagementForm data is missing or has been tampered with' 时管理表单错误)

Question

我有一个 models.py 类如下

class Educational_Qualification(models.Model):
   user = models.ForeignKey(User)
   exam = models.CharField(max_length=40)
   pass_month = models.CharField(max_length=40)

我有如下的 views.py

def create_qualification(request):
 QFormSet = modelformset_factory(Educational_Qualification, extra=3, exclude=("user",))
 if request.method == "POST":
  formset = QFormSet(request.POST, request.FILES)

  if formset.is_valid():
   formset.save()
   for form in formset.forms:
    if form.is_valid():
     quali= form.save(commit=False)
     quali.user = request.user
     quali.save()

    return HttpResponse("Saved")
  else:
   return HttpResponse("Snafu")
 else:
  formset = QFormSet()
 return render_to_response("register/edu.html", {"formset":formset}, context_instance=RequestContext(request)) 

当我提交表单时，它会抛出验证错误。声明 ManagementForm 数据丢失或已被篡改'

我的模板中有 formset.management_form。

可能是什么问题？

Answer 1

错误不在您的 View 或模型中，而在模板中。

呈现表单集的正确方法是:

<form method="post" action="">
    <table>
        {{ formset }}
    </table>
</form>

或

<form method="post" action="">
    {{ formset.management_form }}
    <table>
        {% for form in formset.forms %}
            {{ form }}
        {% endfor %}
    </table>
</form>

我想，您是在循环遍历模板中的表单而不包括管理表单吗？