I have a django form that allows a user to select multiple options: CARDS

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Asked: May 19, 20262026-05-19T17:36:51+00:00 2026-05-19T17:36:51+00:00

I have a django form that allows a user to select multiple options: CARDS

0

I have a django form that allows a user to select multiple options:

CARDS = (
    ("visa", "Visa"),
    ("mastercard", "MasterCard"),
)

class PaymentForm(forms.ModelForm):
    credit_cards = forms.MultipleChoiceField(choices=CARDS, widget=forms.CheckboxSelectMultiple)
    # ... etc.

I have the form’s associated model setup as:

class Payment(models.Model):
    user = models.OneToOneField(User)
    credit_cards = models.CharField(choices=CARDS, max_length=100)
    # ... etc.

But I’m thinking that a CharField with the choices parameter can only accept a single choice because my form never validates and I get an error like:

Value u”[u’visa’]” is not a valid choice.

And it sure looks like a valid choice.

I’ve seen that some people get this working with a ManyToManyField on the model side (which I’d expect) but building a model just for a static list of credit card types seems overkill.

So: is there a specific model field type or different form configuration I should be using to support multiple selections from a pre-defined list of options?

Thanks.