Python 如何排除[vanilla django]表单中的字段？

存在两种类型的用户：投资者和管理者。一些用户（投资者）应该能够填写投资者类型，其他人（经理）不应该。。。我有一张表格。用户信息表单。我只是想知道是否有一种简单的方法可以排除那些manager用户填写该字段

在我的模板中，我成功地将经理排除在“投资者类型”字段之外。但在提交他们的用户信息表单时，会显示：

investor\u type
此字段是必需的。

在模板中

有没有什么方法可以让我把，required=只适用于投资者

class UserInfoForm(forms.Form):
    choices = (('0', "Foundation"), ('1', "Financial/Bank"), ('2', "Pension"), ('3', "Endowment"),\
                ('4', "Government Pension"), ('5', "Family Office"), ('6', "Insurance Co."),\
                 ('7', "Corporation"), ('8', "Fund of Funds"), ('9', "Fund Manager"), ('10', "Asset Manager"), ('11', "Fundless Sponsor"))

    first_name = forms.CharField(widget=forms.TextInput(attrs={'class':'input-text'}), max_length=30)
    last_name = forms.CharField(widget=forms.TextInput(attrs={'class':'input-text'}), max_length=30)
    email = forms.EmailField(widget=forms.TextInput(attrs={'class':'input-text'}))
    about = forms.CharField(widget=forms.Textarea(attrs={'class':'input-text'}), required=False)
    country = forms.CharField(max_length=50, widget=forms.Select(choices=countries.COUNTRIES))
    avatar = forms.ImageField(required=False)
    investor_type = forms.CharField(max_length=4, widget=forms.Select(choices=choices))


def save(self, user, type):
    if type == 'manager':
        profile = ManagerProfile.objects.get(user=user)
    else:
        profile = InvestorProfile.objects.get(user=user)
        # // Tried this...
        if profile.investor_type != self.cleaned_data['investor_type']:
            profile.investor_type = self.cleaned_data['investor_type']
            profile_edited = True
        # // Failed
    user_edited = False
    if user.first_name != self.cleaned_data['first_name']:
        user.first_name = self.cleaned_data['first_name']
        user_edited = True
    if user.last_name != self.cleaned_data['last_name']:
        user.last_name = self.cleaned_data['last_name']
        user_edited = True
    if user.email != self.cleaned_data['email']:
        user.email = self.cleaned_data['email']
        user_edited = True
    if user_edited:
        user.save()
    profile_edited = False
    if profile.about != self.cleaned_data['about']:
        profile.about = self.cleaned_data['about']
        profile_edited = True
    if profile.country != self.cleaned_data['country']:
        profile.country = self.cleaned_data['country']
        profile_edited = True
    if profile_edited:
        profile.save()
    if self.cleaned_data['avatar']:
        avatar = self.cleaned_data['avatar']
        avatar.name = user.username + '.' + avatar.name.split('.')[-1]
        profile.avatar.save(avatar.name, avatar)

我尝试了

investor\u type=forms.CharField（max\u length=4，required=False，widget=forms.Select（choices=choices），initial=0'）

，但没有成功

Views.py：在视图中尝试=失败

@login_required        
def edit_profile(request, profile_type):
    if profile_type == 'investor':
        profile = InvestorProfile.objects.get(user=request.user)
    elif profile_type == 'manager':
        profile = ManagerProfile.objects.get(user=request.user)
    context = base_context(request)
    if request.method == 'POST':
        notify = "You have successfully updated your profile."
        user_info_form = UserInfoForm(request.POST, request.FILES)
        if user_info_form.is_valid():
            user_info_form.save(request.user, profile_type)
            return HttpResponseRedirect(request.POST.get('next', '/profile/' + profile_type + '/' + request.user.username + '/'))
    else:
        initial = {}
        initial['first_name'] = request.user.first_name
        initial['last_name'] = request.user.last_name
        initial['email'] = request.user.email
        initial['about'] = profile.about
        initial['country'] = profile.country
        initial['about'] = profile.about
        # // Tried this ...
        if profile_type == 'investor':
            initial['investor_type'] = profile.investor_type
        elif profile_type == 'manager':
            profile.investor_type.required = False
        # // Failed
        user_info_form = UserInfoForm(initial=initial)
    context['user_info_form'] = user_info_form
    context['profile_type'] = profile_type
    context['profile'] = profile
    return render_to_response('edit/profile.html', context, context_instance=RequestContext(request))

---

我感谢你的帮助，并提前向你表示感谢

我会将投资者类型设置为：

required=False

然后为表单创建一个干净的方法，检查用户类型。如果是投资者，而他们没有指定投资者类型，则抛出错误。如果是经理，就让他过去

您还需要确保您的配置文件模型允许投资者类型为空：

查看有关表单的clean方法的文档。

---

在投资者类型上设置required=False时发生了什么？哪一行产生了该异常？也看看我下面的答案，看看是否有帮助。我认为将其全局设置为required=False并使用clean方法可能是更好的方法。但是我找到了。这很有效，谢谢你。