ManagementForm数据缺少错误，而formset验证 [英] ManagementForm data missing error while formset validation

问题描述

form.py创建在views.py：

formset creation in views.py:

ffact = formset_factory(Form,extra=somenum]))
fset = ffact(prefix='pfix')

验证在views.py：

validation in views.py:

ffact = formset_factory(Form,extra=3))
fset = ffact(request.POST) 
if fset_is.valid():
    blah blah

这是导致异常类型：ValidationError在/ app / index /
异常值：[u'ManagementForm数据丢失或已被篡改'] django-docs
没有提到这个。我不知道如何提供管理数据。我尝试过像这个，

this is resulting in Exception Type: ValidationError at /app/index/ Exception Value: [u'ManagementForm data is missing or has been tampered with'] django-docs did mention about this. I'm not sure how to provide management data. I tried something like this ,

try:
  fset = ffact(request.POST)
except ValidationError:
  fset = None
if fset and fset.is_valid():
  blah blah

但是我仍然得到相同的错误。任何想法？谢谢。

But still i get the same error.Any ideas? Thanks.

推荐答案

在模板中呈现formset.management_form

rendering the formset.management_form in the template

{{fset.management_form}}

这允许管理表单数据可用，因此数据是完整的。但是如果在genalating表单添加前缀

this allows the management form data available and hence data is complete.But if prefix is added while genarating formsets

添加前缀应该可以解决这个问题。

adding prefix should fix that issue.

fset = ffact(request.POST,prefix='pfix')

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