自定义外键的inline_formset字段显示

发布于 2024-10-20 21:14:22 字数 1136 浏览 1 评论 0原文

我有一个名为 Access 的模型，它链接到其他两个模型。

class Access (models.Model):
    portfolio_id = models.ForeignKey(Portfolio)
    user_id = models.ForeignKey(User)
    title = models.CharField(max_length=30, null=True, blank=True)
    access_rights = models.PositiveIntegerField(choices=ACCESS_CHOICES)

我已经创建了这个表格。

class UserAccessForm(forms.ModelForm):
    class Meta:
    model = Access

我有这个想法。

AccessFormSet = inlineformset_factory(Portfolio,
                                      Access,
                                      form=UserAccessForm,
                                      extra=1,
                                      can_delete=False)
cAccessFormSet = AccessFormSet(instance=cPorfolio)

问题出在网页中，user_id 显示为选择字段，为我提供所有用户的列表（即“jane15”、“tom54”）。我希望它是一个文本字段，有人必须输入用户名。当我尝试如下自定义它时，它显示“用户 ID”而不是“用户名”（即“1”、“2”）。

class UserAccessForm(forms.ModelForm):
    user_id = forms.ChoiceField(required=True, widget=forms.TextInput)
    class Meta:
        model = Access

如何让表单集显示并接受用户名（即“jane15”）作为文本字段而不是选择字段？

原文

I have a model called Access that links to two other models.

class Access (models.Model):
    portfolio_id = models.ForeignKey(Portfolio)
    user_id = models.ForeignKey(User)
    title = models.CharField(max_length=30, null=True, blank=True)
    access_rights = models.PositiveIntegerField(choices=ACCESS_CHOICES)

I have created this form.

class UserAccessForm(forms.ModelForm):
    class Meta:
    model = Access

I have this in the view.

AccessFormSet = inlineformset_factory(Portfolio,
                                      Access,
                                      form=UserAccessForm,
                                      extra=1,
                                      can_delete=False)
cAccessFormSet = AccessFormSet(instance=cPorfolio)

The issue is in the web page, user_id displays as a choicefield giving me a list of all my users (i.e. "jane15", "tom54"). I want it to be a text field that someone has to type in the username. When I try to customize it as below, it displays "user ids" instead of the "username" (i.e. "1", "2").

class UserAccessForm(forms.ModelForm):
    user_id = forms.ChoiceField(required=True, widget=forms.TextInput)
    class Meta:
        model = Access

How do I get the formset to display and accept usernames (i.e. "jane15") as a textfield instead of as a choicefield?

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如果没结果 2024-10-27 21:14:22

好吧，如果您想输入用户名，选择字段并不是正确的选择。

使用 CharField（它是）并重写 clean_FOO 方法来验证用户实例中的输入或提出错误消息。

class UserAccessForm(forms.ModelForm):
    user_id = forms.CharField()

    class Meta:
        model = Access

    def clean_user_id(self):
        data = self.cleaned_data.get('user_id')
        try:
            user = User.objects.get(username=data)
        except User.DoesNotExist:
            raise forms.ValidationError("No user exists by that username")
        return user

将其传递到您的表单集中即可完成。

Well, if you wanted to type in usernames, a choice field is not the way to go.

Use a CharField which is a <input type='text'> and override the clean_FOO method to validate the input into a user instance or raise an error message.

class UserAccessForm(forms.ModelForm):
    user_id = forms.CharField()

    class Meta:
        model = Access

    def clean_user_id(self):
        data = self.cleaned_data.get('user_id')
        try:
            user = User.objects.get(username=data)
        except User.DoesNotExist:
            raise forms.ValidationError("No user exists by that username")
        return user

Pass that into your formset and you're done.

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