Django 表单：如何使必须填写一个字段但不能同时填写两个字段？

Question

我想要link 到文件或上传文件的选项。显然你不能两者都做。我该如何实施？

Answer 1

Take a look at the Django docs about the clean function for cleaning and validating fields that depend on each other.

然后您可以在 clean 中检查两个字段的值。

大致如下：

from django import forms
from django.core.exceptions import ValidationError


class MyForm(forms.Form):

    field_1 = forms.CharField(required=False)

    field_2 = forms.CharField(required=False)

    def clean(self):

        # Get the field values submitted
        cleaned_data = super(MyForm, self).clean()
        field_1_data = cleaned_data.get('field_1')
        field_2_data = cleaned_data.get('field_2')

        # Check that only one field is filled out.
        if field_1_data and field_2_data:
            raise ValidationError('Only fill out one field please.', code='invalid')

Django 表单：如何使必须填写一个字段但不能同时填写两个字段？

Django forms: How do I make it necessary to fill out one field but not possible to fill out both?

python

django

django-forms