BaseInlineFormSet clean method in admin false trigger?

Question

我正在尝试更新管理中的一个字段，但它从我在forms.py中定义的干净方法中引发了验证错误：

class BasePhoneFormSet(BaseInlineFormSet):
    def clean(self):
        super(BasePhoneFormSet, self).clean()
        if any(self.errors):
            return
        phone_numbers = []
        for form in self.forms:
            if form.cleaned_data.get('number') in phone_numbers:
                raise forms.ValidationError(
                    'Duplicate Entry')
            phone_numbers.append(form.cleaned_data.get('number'))

PhoneFormSet = inlineformset_factory(
    Post, 
    Phone,
    formset=BasePhoneFormSet,
    form=PostForm, 
    fields = ('number',), 
    can_delete=False, # admin still shows delete next to the phone number
    extra=0,
    validate_min=True,
    min_num=1,
)

此代码适用于视图，但在管理员中，我无法更新或添加任何电话号码，因为它会为重复条目引发相同的 ValidationError。

这是我的models.py

class Post(TimeStampedModel, models.Model):
    unique_id = models.CharField(max_length=6, unique=True)
    user = models.ForeignKey(User, related_name='posts')
    city = models.ForeignKey(City, related_name='posts')
class Phone(TimeStampedModel, models.Model):
    number = models.CharField(
        validators=[phone_regex],  max_length=15)
    post = models.ForeignKey(Post)

这是admin.py

class PhoneInline(admin.StackedInline):
    model = Phone
    formset = PhoneFormSet
class PostAdmin(admin.ModelAdmin):
    inlines = [
        PhoneInline,
    ]

我在模型表单中查看了BaseInlineFormSet，但我感到更加困惑。

Answer 1

class PhoneInline(admin.StackedInline):
    model = Phone
    formset = BasePhoneFormSet
    fields = ('number',)
    can_delete = False
    extra = 0
    min_num = 1