Question

我有一个带有DateField的表单 - 'receivedon'属性如下：

forms.py：

class PreDataForm(forms.ModelForm):


    journalname=forms.ChoiceField(required=True,choices=JOURNAL_CHOICES)

    articletype = forms.ChoiceField(required=True, choices=ARTICLE_TYPES)

    granttype = forms.ChoiceField(required=True, choices=GRANTS)

    receivedon=forms.DateField(widget=forms.SelectDateWidget)

    class Meta:
        model=PreData
        fields=['journalname','articlename','articlenumber','caname','camail','articletype',
                'country','affliation','granttype','status','receivedon']

我将要求用户在html中填写该日期，正常程序：

HTML：

                          <div class="center col-md-6">
                             Received On:
                             {{ form.receivedon  }}

                         </div>

现在我想通过像这样的django视图上传日期：

views.py：

 if request.method=="POST":

        form=PreDataForm(request.POST or None)

        print request.POST['receivedon']


        if form.is_valid():
            instance=form.save(commit=False)
            instance.save()

有一点是，当我检查post函数时，表单始终无效is_valid请求，当我尝试使用datefield显示request.POST['receivedon']数据时，其他内容我是获得多值Dict键错误

任何人都能帮助我吗？感谢。

追溯 - 编辑：

File "/Users/Devadanam/Desktop/django_project_postgresql/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/Users/Devadanam/Desktop/django_project_postgresql/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Users/Devadanam/Desktop/django_project_postgresql/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  23.                 return view_func(request, *args, **kwargs)

File "/Users/Devadanam/Desktop/django_project_postgresql/django_project/jsmmetrics/views.py" in createdata
  55.         print request.POST['receivedon']

File "/Users/Devadanam/Desktop/django_project_postgresql/lib/python2.7/site-packages/django/utils/datastructures.py" in __getitem__
  85.             raise MultiValueDictKeyError(repr(key))

Exception Type: MultiValueDictKeyError at /metrics-jsm/create-data/
Exception Value: "'receivedon'"

Answer 1

您未在receivedon收到密钥request.POST。您可以执行以下操作以避免此特定键出现此错误：

request.POST.get('receivedon', <some default value>)

MultiValue Dict键错误Django - 尝试显示DateField时的表单

1 个答案: