1

I'm using django extra views:

# views.py
from django.forms.models import inlineformset_factory
from extra_views import (CreateWithInlinesView, UpdateWithInlinesView,
                        InlineFormSet, )

class LinkInline(InlineFormSet):
    model = Link
    form = LinkForm
    extra = 1

    def get_form(self):
        return LinkForm({})

    def get_formset(self):
        return inlineformset_factory(self.model, self.get_inline_model(), form=LinkForm, **self.get_factory_kwargs())

class TargetCreateView(BaseSingleClient, CreateWithInlinesView):
    model = Target
    form_class = TargetForm
    inlines = [LinkInline, ]
    template_name = 'clients/target_form.html'

I want this 'keywords' field to change based on the pk I pass to the view through the url.

# forms.py
class LinkForm(forms.ModelForm):
    keywords = forms.ModelMultipleChoiceField(queryset=ClientKeyword.objects.filter(client__pk=1))

    class Meta:
        model = Link

I could manage to overwrite the form's init, however:

  1. I don't have access to self.kwargs inside LinkInline

  2. Even if I did, I'm not sure I can pass an instantiated form to inlineformset_factory()

4

1 に答える 1

3

さて、貧しい魂がこれを達成する方法への答えを必要とするなら...私はconstruct_inlines（）（extra_views.advanced.ModelFormWithInlinesMixinの一部です）を上書きし、そこでフィールドのクエリセットを変更することによってそれを行うことができました。

class TargetCreateView(BaseSingleClient, CreateWithInlinesView):
    model = Target
    form_class = TargetForm
    inlines = [LinkInline, ]
    template_name = 'clients/target_form.html'

    def construct_inlines(self):
        '''I need to overwrite this method in order to change
        the queryset for the "keywords" field'''
        inline_formsets = super(TargetCreateView, self).construct_inlines()
        inline_formsets[0].forms[0].fields[
                'keywords'].queryset = ClientKeyword.objects.filter(
                        client__pk=self.kwargs['pk'])
        return inline_formsets

    def forms_valid(self, form, inlines):
        context_data = self.get_context_data()
        # We need the client instance
        client = context_data['client_obj']
        # And the cleaned_data from the form
        data = form.cleaned_data
        self.object = self.model(
                client=client,
                budget=data['budget'],
                month=data['month']
        )
        self.object.save()
        for formset in inlines:
            f_cd = formset.cleaned_data[0]
            print self.object.pk
            link = Link(client=client,
                    target=self.object,
                    link_type=f_cd['link_type'],
                    month=self.object.month,
                    status='PEN',
            )
            # save the object so we can add the M2M fields
            link.save()
            for kw in f_cd['keywords'].all():
                link.keywords.add(kw)
        return HttpResponseRedirect(self.get_success_url())
于 2013-01-24T15:36:08.160 に答える