在Django中使用替代的ForeignKey

时间:2012-05-09 10:02:58

标签: django forms django-forms

我有两种模式:

class Account1(models.Model):
    uuid = models.CharField(max_length=22, unique=True)
    user = models.ForeignKey(User)

class Account2(models.Model):
    uuid = models.CharField(max_length=22, unique=True)
    account_1 = models.ForeignKey(Account1)

“uuid”是一个自定义的CharField,它将short uuid(如“mfAiC”)存储为表单中的索引。该URL看起来像/ view / uuid /。我想隐藏所有网址/ HTML中的真实ID。

模型Account2的表格:

class Account2Form(forms.ModelForm):
    class Meta:
        model = Account2
        fields = (
            'account_1',
        )

    def __init__(self, user, *args, **kwargs):
        super(Account2Form, self).__init__(*args, **kwargs)
        self.fields['account_1'].queryset = Account1.objects.filter(user=user)

呈现的HTML将是:

<select name="account_1" id="id_account_1">
    <option value="" selected="selected">---------</option>
    <option value="1">account 1 name</option>
</select>

我需要的是在表单中使用uuid而不是id,如:

<select name="account_1" id="id_account_1">
    <option value="" selected="selected">---------</option>
    <option value="mfAiC">account 1 name</option>
</select>

我知道我可以手动完成。我可以禁用account_1,创建一个表单字段,例如uuid,然后为其动态设置选项。然后在表单验证或视图中验证表单数据。

但还有其他解决方案吗?

1 个答案:

答案 0 :(得分:0)

class Account2Form(forms.ModelForm):
    account_1 = forms.ChoiceField(label='Account 1', choices=(1,1))
    class Meta:
        model = Account2
        fields = (
            'account_1',
        )

    def __init__(self, user, *args, **kwargs):
        super(Account2Form, self).__init__(*args, **kwargs)
        self.fields['account_1'].choices = [(acc1.uuid, acc1.account_name) for acc1 in Account1.objects.filter(user=user)]