如何排除[vanilla Django]表单中的字段？

Question

投资者和管理者两类用户。一些用户（投资者）应该能够筛选出投资者类型，而其他人（经理）不应该。。。我有一张表格。用户表单信息。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

在我的模板中，我成功地将经理人排除在投资者类型字段之外。但是在提交他们的UserInfoForm时，会在模板中显示：investor_type This field is required.。在

有没有什么方法我可以把，必选=只对投资者真实？在

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)

我试过investor_type = forms.CharField(max_length=4, required=False, widget=forms.Select(choices=choices), initial='0')，但没用。在

在视图.py：在视图中尝试=失败。在

^{pr2}$

我感谢你的帮助，并提前谢谢你。在

Answer 1

我会将“投资者类型”设置为：

required=False

然后为表单创建一个clean方法来检查用户的类型。如果是投资者而他们没有指定投资者类型抛出错误。如果是经理，就让它过去。在

您还需要确保您的配置文件模型允许investor_type为空和空： https://docs.djangoproject.com/en/dev/topics/db/models/#field-options

查看此文档了解表单的clean方法。 https://docs.djangoproject.com/en/dev/ref/forms/validation/#cleaning-and-validating-fields-that-depend-on-each-other