Creating objects in 2 django models at once?

Question

Django

There are 2 models

class QualityControl(models.Model):
    object = models.ForeignKey(Object, verbose_name=u'Объект')
    type = models.ForeignKey(QCType, verbose_name=u'Тип контроля')
    company = models.ForeignKey(Company, verbose_name=u'Организация')
    number = models.CharField(max_length=200, verbose_name=u'Номер')
    date = models.DateField(verbose_name=u'Дата')

class QCConstruction(models.Model):
    qc = models.ForeignKey(QualityControl, verbose_name=u'Документ')
    work = models.ForeignKey(Work)
    construction = models.ForeignKey(Construction, verbose_name=u'Конструкция')
    value = models.CharField(max_length=128, verbose_name=u'Значение', blank=True)

Something I can’t figure out how to make a view for creating and a template immediately with a form for QualityControl and with a formset for QCConstruction

Answer 1

Decided this way:

from django.forms import inlineformset_factory

class QCWorkConstructionCreateView(TemplateView):
    template_name = 'executive/qc/qc-work-construction-create.html'

    def get_context_data(self, **kwargs):
        context = super(QCWorkConstructionCreateView, self).get_context_data(**kwargs)
        works = Work.objects.filter(id__in=self.request.GET.getlist('works'))
        # задаем начальные значения
        initial = []
        for work in works:
            for con in work.constructions.all():
                qc_con = dict()
                qc_con['construction'] = con.id
                qc_con['work'] = work.id
                qc_con['value'] = ''
                initial.append(qc_con)
        # количество отображаемых строк formset
        extra = len(initial)
        # форма для документа QC
        form = QCForm(self.request.user, {'object': self.request.user.profile.current_object_id})
        # Formset для QCConstruction
        QCformset = inlineformset_factory(QualityControl, QCConstruction, fields=('construction', 'work', 'value',), extra=extra)
        context['form'] = form
        context['formset'] = QCformset(initial=initial)
        return context

    def post(self, *args, **kwargs):
        form = QCForm(self.request.user, self.request.POST)
        if form.is_valid():
            qc = form.save()
            QCformset = inlineformset_factory(QualityControl, QCConstruction, fields=('construction', 'work', 'value',))
            formset = QCformset(self.request.POST, instance=qc)
            if formset.is_valid():
                formset.save()
                return redirect('qc_list')

Answer 2

Here's a variant
. You can generally do it straight on the forehead, render the form on two models, but in the models there are a lot of dependencies with other models. Be sure that you will receive all foreign key IDs upon submission. When you post a request - first save the entry for the first model.
quality_control.save()
After that, the quality_control object already has its own ID and can be pushed into the record of the second QCConstruction model