How can I render a ManyToManyField as checkboxes?

Question

I\'m making a game link site, where users can post links to their favorite web game. When people post games they are supposed to check what category the game falls into.

Answer 1

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!