Django 设置字段值'；用户'；在表单验证之前查看

我试图在验证之前在视图中设置字段值“user”，如下面的示例所示。但我仍然得到验证消息user is required，这表明它没有被设置。我做错了什么

谢谢

view.py

def add_batch(request):
    # If we had a POST then get the request post values.
    if request.method == 'POST':

        form = BatchForm(data=request.POST, initial={'user': request.user})
        # Check we have valid data before saving trying to save.
        if form.is_valid():
            # Clean all data and add to var data.
            data = form.cleaned_data
            groups = data['groups'].split(",")
            for item in groups:
                batch = Batch(content=data['content'],
                              group=Group.objects.get(pk=item),
                              user=request.user
                              )
                batch.save()
            return redirect(batch.get_send_conformation_page())
        else:
            context = {'form': form}
            return render_to_response('sms/sms_standard.html', context, context_instance=RequestContext(request))

class BatchForm(forms.ModelForm):

    class Meta:
        model = Batch

    def __init__(self, user=None, *args, **kwargs):
        super(BatchForm, self).__init__(*args,**kwargs)
        if user is not None:
            form_choices = Group.objects.for_user(user)
        else:
            form_choices = Group.objects.all()
        self.fields['groups'] = forms.ModelMultipleChoiceField(
            queryset=form_choices
        )

form.py

def add_batch(request):
    # If we had a POST then get the request post values.
    if request.method == 'POST':

        form = BatchForm(data=request.POST, initial={'user': request.user})
        # Check we have valid data before saving trying to save.
        if form.is_valid():
            # Clean all data and add to var data.
            data = form.cleaned_data
            groups = data['groups'].split(",")
            for item in groups:
                batch = Batch(content=data['content'],
                              group=Group.objects.get(pk=item),
                              user=request.user
                              )
                batch.save()
            return redirect(batch.get_send_conformation_page())
        else:
            context = {'form': form}
            return render_to_response('sms/sms_standard.html', context, context_instance=RequestContext(request))

class BatchForm(forms.ModelForm):

    class Meta:
        model = Batch

    def __init__(self, user=None, *args, **kwargs):
        super(BatchForm, self).__init__(*args,**kwargs)
        if user is not None:
            form_choices = Group.objects.for_user(user)
        else:
            form_choices = Group.objects.all()
        self.fields['groups'] = forms.ModelMultipleChoiceField(
            queryset=form_choices
        )

如前所述，

initial

值不用于设置表单中的数据，它们仅用于显示初始值

如果不希望显示用户，但希望自动设置用户，最好的做法是将用户字段从模型表单中完全排除，并在保存时在视图中进行设置。或者，由于其他原因，您将其作为参数传入，因此您可以将其添加到POST数据中：

def __init__(self, user=None, *args, **kwargs):
    super(BatchForm, self).__init__(*args,**kwargs)
    if user is not None:
        if self.data:
            self.data['user'] = user

---

似乎这个字段仍然是必需的“user”。我认为它应该是

form=BatchForm（user=request.user，data=request.POST）

@Bibhas我非常确定我传递用户值的答案是正确的，因为我在我的项目中也这样做了。@catherine他的

\uuuuuu init\uuuuuu

函数需要一个

用户

参数。@Bibhas是的，我知道我看到了。我的答案传递用户值，它不必user=request.user。我忘记了“排除”，谢谢你解释initis不是

self.data

不可变的？