CODEWITHSUNDEEP
djangoforms
firefexx
firefexx

Reputation: 786

Django forms.SelectMultiple complains about choices

I'm trying to create a form consisting of a multiple select field which is used to select multiple instances of my Person model.

class MyForm(forms.Form):
    choices = [(p.id, str(p)) for p in Person.objects.all()]
    my_field = forms.ChoiceField(widget=forms.SelectMultiple, choices=choices)

The widget looks exactly like I want, but when I submit the form, it fails with the message

Select a valid choice. ['2', '3'] is not one of the available choices.

What am I doing wrong? When removing the widget=forms.SelectMultiple, from the third line, it works, but then it's only a single select field.

Upvotes: 1

Views: 1012

Answers (1)

Alasdair
Alasdair

Reputation: 308879

You are getting the error because ChoiceField expects a single choice.

If you want to allow multiple choices, use a MultipleChoiceField. 

my_field = forms.MultipleChoiceField(choices=choices)

Note you don't have to specify the widget, as it's forms.SelectMultiple by default.

Upvotes: 3

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