[formset] ManyToMany

[Robin Riis]

if i have the following models:

class Wiggs_Filter(models.Model):

    wiggs_nr = models.CharField(max_length=30, unique=True, blank=True, null=True)

    picture = models.ImageField(upload_to='filter/', default='filter/saknas.jpg')

    description = models.CharField(max_length=100, blank=True, null=True)

    outer_diameter = models.CharField(max_length=25, blank=True, null=True)

    inner_diameter = models.CharField(max_length=25, blank=True, null=True)

    use_with = models.ManyToManyField("self", blank=True)

class Cross_Filter(models.Model):

    wiggs = models.ManyToManyField(Wiggs_Filter, related_name='cross_ref')

    manufacture = models.CharField(max_length=25, choices=TILLVERKARE)

    name = models.CharField(max_length=25)

and i would like to be able to open a modal window in Wiggs_Filter DetailView

with a formset to Cross_Filter but i cannot get it to work

have the following form:

class FilterCrossForm(forms.ModelForm):

    class Meta:

        model = Filter_Cross

        fields = '__all__'

CrossFormset = forms.formset_factory(FilterCrossForm)

class AddFilterAjaxForm(forms.ModelForm):

    class Meta:

        model = Wiggs_Filter

        exclude = ('picture', 'use_with')

and this is my DetailView:

class Wiggs_Filtret(DetailView):

    template_name = 'lager/detta_filter.html'

    model = Wiggs_Filter

    def get_object(self):

        return get_object_or_404(Wiggs_Filter, wiggs_nr=self.kwargs['wiggs_nr'])

    def get_context_data(self, **kwargs):

        context = super().get_context_data(**kwargs)

        context['cross_options'] = self.get_cross_manufacturer()

        context['cross_refs'] = self.object.cross_ref.all()

        return context

    def get_cross_manufacturer(self):

        cross = [obj.manufacture for obj in self.object.cross_ref.all()]

        return list(dict.fromkeys(cross))

any tips on how to open a bootstrap modal with the CrossFormset formset?

thanks in advance