Question

注意：最终解决了解决方案。

我正在尝试将请求值传递给表单，我必须过滤表单中的字段，但它会一直返回TypeError，我认为代码没问题。

views.py：

class AddProposalSet(FormView):

    """
    Create a new prpoposal set, it can be related to a debate or be in free mode,
    which is not linked to anything. If it's linked to a debate, people can
    make their proposals related to the debate notes.

    .. versionadded: 0.1.5

    :rtype: Form object
    :context: form, get_place
    """
    #form_class = ProposalSetForm
    template_name = 'proposals/proposalset_form.html'

    def get_success_url(self):
        space = self.kwargs['space_url']
        return reverse(urln_space.SPACE_INDEX, kwargs={'space_url':space})

    def get_form_class(self):
        """
        The reason for overriding "form_class" is that we pass here the
        request to the form, that way we can filter the debates based on the
        current space.
        """
        return ProposalSetForm(self.kwargs['space_url'])

    def form_valid(self, form):
        self.space = get_object_or_404(Space, url=self.kwargs['space_url'])
        form_uncommited = form.save(commit=False)
        form_uncommited.space = self.space
        form_uncommited.author = self.request.user
        form_uncommited.save()
        return super(AddProposalSet, self).form_valid(form)

    def get_context_data(self, **kwargs):
        context = super(AddProposalSet, self).get_context_data(**kwargs)
        self.space = get_object_or_404(Space, url=self.kwargs['space_url'])
        context['get_place'] = self.space
        return context

    @method_decorator(permission_required('proposals.add_proposalset'))
    def dispatch(self, *args, **kwargs):
        return super(AddProposalSet, self).dispatch(*args, **kwargs)

forms.py

class ProposalSetForm(ModelForm):

    """
    ProposalSetForm is a basic form autogenerated form from ProposalSet model.
    Returns an empty form to create a new proposal set.

    :rtype: HTML Form

    .. versionadded:: 0.1.5b
    """
    class Meta:
        model = ProposalSet

    def __init__(self, *args, **kwargs):
        super(ProposalSetForm, self).__init__(*args, **kwargs)
        get_place = get_object_or_404(Space, url=args[0])
        if self.instance:
            self.fields['debate'].queryset = Debate.objects.filter(end_date__lte=datetime.date.today(), space=get_place)

错误：

TypeError at /en-gb/spaces/test/proposal/add/set/
'ProposalSetForm' object is not callable

我无法找到可能发生的事情，我错过了什么？

SOLUTION：

views.py

class AddProposalSet(FormView):

    """
    Create a new prpoposal set, it can be related to a debate or be in free mode,
    which is not linked to anything. If it's linked to a debate, people can
    make their proposals related to the debate notes.

    .. versionadded: 0.1.5

    :rtype: Form object
    :context: form, get_place
    """
    form_class = ProposalSetForm
    template_name = 'proposals/proposalset_form.html'

    def get_success_url(self):
        space = self.kwargs['space_url']
        return reverse(urln_space.SPACE_INDEX, kwargs={'space_url':space})

    def get_form_kwargs(self, **kwargs):
        kwargs = super(AddProposalSet, self).get_form_kwargs(**kwargs)
        kwargs['initial']['space'] = self.kwargs['space_url']
        return kwargs

    def form_valid(self, form):
        self.space = get_object_or_404(Space, url=self.kwargs['space_url'])
        form_uncommited = form.save(commit=False)
        form_uncommited.space = self.space
        form_uncommited.author = self.request.user
        form_uncommited.save()
        return super(AddProposalSet, self).form_valid(form)

    def get_context_data(self, **kwargs):
        context = super(AddProposalSet, self).get_context_data(**kwargs)
        self.space = get_object_or_404(Space, url=self.kwargs['space_url'])
        context['get_place'] = self.space
        return context

    @method_decorator(permission_required('proposals.add_proposalset'))
    def dispatch(self, *args, **kwargs):
        return super(AddProposalSet, self).dispatch(*args, **kwargs)

forms.py

class ProposalSetForm(ModelForm):

    """
    ProposalSetForm is a basic form autogenerated form from ProposalSet model.
    Returns an empty form to create a new proposal set.

    :rtype: HTML Form

    .. versionadded:: 0.1.5b
    """
    class Meta:
        model = ProposalSet

    def __init__(self, *args, **kwargs):
        super(ProposalSetForm, self).__init__(*args, **kwargs)
        get_place = get_object_or_404(Space, url=kwargs['initial']['space'])
        if self.instance:
            self.fields['debate'].queryset = Debate.objects.filter(end_date__lte=datetime.date.today(), space=get_place)
            print self.fields['debate']

Answer 1

get_form_class()方法应该返回类而不是表单类的对象/实例。所以你的方法可以更新到

def get_form_class(self):
    return ProposalSetForm

但是，我不确定这将如何传递您需要的__init__()类的参数。

您可以定义get_form()而不是get_form_class()并返回相应的表单实例。

Answer 2

看起来ProposalSetForm被作为一个模板中的函数调用

Django - 在表单中获取args时出现TypeError

2 个答案: