[Django]-Django ModelMultipleChoiceField set initial values

by

15👍

✅

If you pass a QuerySet object as an initial value and if widget=forms.CheckboxSelectMultiple, then the check boxes are not checked. I had to convert the QuerySet object to a list, and then the check boxes were checked:

YourForm(
    initial={
        "multi_field": [
            cat for cat in Category.objects.all().values_list("id", flat=True)
        ]
    }
)
👤user2233706

20👍

You can pass it the “initial” setting from your view. For example:

form = FormUsingCategory(initial={'category':querysetofinitialvalues})

The tricky part is that you must have the right queryset. Just like the seed values, it must be of Category.objects.filter(…) – anything else won’t work.

👤bethlakshmi

13👍

Either set initial when you create form instance or set field initial in form init

def __init__(self, *args, **kwargs):
    super(YourForm, self).__init__(*args, **kwargs)
    self.fields["category"].initial = (
        Category.objects.all().values_list(
            'id', flat=True
        )
    )

If you just want to change the text when no field selected you can set empty_label property. https://docs.djangoproject.com/en/1.10/ref/forms/fields/#django.forms.ModelChoiceField.empty_label

👤James

0👍

I needed something similar in admin and in ModelForm i just did something like:

    def __init__(self, *args, **kwargs):
        super(CategoryAdminForm, self).__init__(*args, **kwargs)
        self.initial['category'] = list(Category.objects.filter(name=<whatever_you_need>))

and it worked fine for me

👤Gedrex ..

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