Django - using Many-to-Many horizontal interface outside of admin

Question

I'm working in a form with a m2m field. I want that this field looks like the horizontal interface of the django admin site... ¿how i can do it?

thanks...

Answer 1

You need to use the FilteredSelectMultiple widget

from django.contrib.admin.widgets import FilteredSelectMultiple
from django import forms
from .models import Person


class PersonForm(forms.ModelForm):
    some_field = forms.ModelMultipleChoiceField(Person.objects.all(), widget=FilteredSelectMultiple("Person", False, attrs={'rows':'2'}))
    class Meta:
        model = Person   

You will also need to include the Javascript and CSS used in the admin. Here's an example