Question

型号：

class MyModel(models.Model):
  status = models.ForeignKey(Status, on_delete=models.PROTECT, null=True, blank=True)
   date = models.DateField()

形式：

class MyModelForm(ModelForm):

    class Meta:
        model = MyModel
        fields = '__all__'

    def clean_date(self):
        cd = self.cleaned_data
        status = cd.get('status')
        date = cd.get('date')

        if not date and status == 1:
            raise forms.ValidationError((mark_safe('<p class="text-danger">When status is .... You must add date </p>')))
        return date

我的清洁功能不起作用。怎么回事？你能救我吗？

Answer 1

如果您是cleaning fields that depend on each other，那么您应该覆盖clean方法，而不是clean_date。

由于status是外键，因此永远不会等于1。也许你想检查主键，在这种情况下你应该使用status.pk。

def clean(self):
    cleaned_data = super(ContactForm, self).clean()
    status = cleaned_data.get('status')
    date = cleaned_data.get('date')
    if not date and status.pk == 1:
        raise forms.ValidationError((mark_safe('<p class="text-danger">When status is .... You must add date </p>')))

    return cleaned_data

DJANGO Form Clean

1 个答案: