Django：没有调用CBV方法form_valid（）

In my CreateView class I am overriding the form_valid() function as follows:

在我的CreateView类中，我重写了form_valid（）函数，如下所示：

class ActionCreateView(CreateView):
    model = Action
    form_class = ActionCreateForm
    success_url = reverse_lazy('profile')

    def get_initial(self):
        initial = super(ActionCreateView, self).get_initial()
        initial['request'] = self.request
        return initial

    def form_valid(self, form):
        form.instance.user = self.request.user
        print 'user: %s'%form.instance.user
        try:
            da = form.cleaned_data['deadline_date']
            ti = datetime.now()
            form.instance.deadline = datetime(da.year, da.month, da.day, ti.hour, ti.minute, ti.second )
        except Exception:
            raise Http404
        return super(ActionCreateView, self).form_valid(form)

But as it turns out, the form_valid method is never called because the user is never printed. Interestingly, the clean method in the forms.py is called.

但事实证明，从不调用form_valid方法，因为永远不会打印用户。有趣的是，调用forms.py中的clean方法。

No error is displayed (therefore I do not have a traceback to display). The user is just redirected to the form again. What could be the reason for this behaviour? I'm running on Django 1.5 and Python 2.7.

没有显示错误（因此我没有要显示的回溯）。用户只是重新定向到表单。这种行为可能是什么原因？我正在使用Django 1.5和Python 2.7。

2 个解决方案

#1

form.instance.user = self.request.user is wrong

form.instance.user = self.request.user是错误的

Please try this variant:

请尝试以下变体：

def form_valid(self, form):
    self.object = form.save(commit=False)  
    if self.request.user.is_authenticated():
        self.object.user = self.request.user
    # Another computing etc
    self.object.save()
    return super(ActionCreateView, self).form_valid(form)

P.S. You really need change get_initial? On you code i don't see that this need.

附：你真的需要改变get_initial吗？在你的代码我不认为这需要。

#2

It is likely that the form is not valid. You could override form_invalid() and see if that is called, or override post() and see what data is being POSTed.

表格可能无效。您可以覆盖form_invalid（）并查看是否已调用，或覆盖post（）并查看正在发布的数据。

#1