[Django]-How can I render a ManyToManyField as checkboxes?

by

51đź‘Ť

âś…

class GameForm(forms.ModelForm): 
        name = forms.CharField(max_length=15, label='Name') 
        url = forms.URLField(label='URL', initial='http://') 
        cats = forms.ModelMultipleChoiceField(
            queryset=Category.objects.all(),
            widget=forms.CheckboxSelectMultiple,
            required=True)

        class Meta: 
                model = Game 
                fields = ('name','url','cats')

that should fix your view, but i’m not sure about the admin. still looking… will edit if i find anything.

👤Brandon Henry

46đź‘Ť

Here is how I solved it (Edit: and the admin thing)

Forms:

cats = forms.ModelMultipleChoiceField(widget=forms.CheckboxSelectMultiple, queryset=Category.objects.all())

(It was the queryset part I couldn’t find..)

View:

cats = form.cleaned_data['cats']
    game.cats = cats

And that’s all the code needed to save the data.

Edit:
here is a solution for the admin

Models:

from django.contrib import admin
from django.forms import CheckboxSelectMultiple

class MyModelAdmin(admin.ModelAdmin):
    formfield_overrides = {
        models.ManyToManyField: {'widget': CheckboxSelectMultiple},
    }

Admin:

from gamesite.games.models import Game, MyModelAdmin

admin.site.register(Game, MyModelAdmin)

It’s kind of quirky in looks, but works!
If someone finds a way to make it more “clean” please post!

Cheers!

👤Grétar Jónsson

4đź‘Ť

Found this on from Chase Seibert, Engineering Manager of Dropbox

Source from Chase Seibert

from django.db import models
from django.forms.models import ModelForm
from django.forms.widgets import CheckboxSelectMultiple

class Company(models.Model):  
    industries = models.ManyToManyField(Industry, blank=True, null=True)

class CompanyForm(ModelForm):

    class Meta:
        model = Company
        fields = ("industries")

    def __init__(self, *args, **kwargs):

        super(CompanyForm, self).__init__(*args, **kwargs)

        self.fields["industries"].widget = CheckboxSelectMultiple()
        self.fields["industries"].queryset = Industry.objects.all()
👤Franz Schwerdtmann

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