Как сделать дубликат копии объекта в Django каркасе отдыха? - PullRequest
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Как сделать дубликат копии объекта в Django каркасе отдыха?

0 голосов
/ 12 февраля 2020

Я делаю копию объекта. Он работает, за исключением поля времени, связанного с полем дня, которое я не могу скопировать. Что может быть не так с моим кодом?

models.py 

class Facility(models.Model):

    id = models.UUIDField(primary_key=True, default=uuid_generate_v1mc, editable=False)
    name = models.CharField(max_length=250, blank=True, null=True)
    description = models.CharField(max_length=1000, blank=True, null=True)

class FacilityDaySlot(models.Model):

    day_slot_id = models.UUIDField(primary_key=True, default=uuid_generate_v1mc, editable= False)
    facility = models.ForeignKey(Facility, on_delete=models.CASCADE, blank=True, null=True, related_name='days')
    open_time = models.TimeField(blank=True, null=True)
    close_time = models.TimeField(blank=True, null=True)

class FacilityTimeSlot(models.Model):

    id = models.UUIDField(primary_key=True, default=uuid_generate_v1mc, editable=False)
    day_slot = models.ForeignKey(FacilityDaySlot, on_delete=models.CASCADE, blank=True, null=True, related_name="times")
    start_slot_time = models.TimeField(blank=True, null=True)
    end_slot_time = models.TimeField(blank=True, null=True)

views.py 


    @api_view(["POST"])
    @permission_classes((AllowAny,))
    def facility_clone(request):
        """ Generate the duplicate Facility with out publish, FacilitySport, FacilityLevel"""
    facility_id = request.data.get("facility_id", None)
    if facility_id:
        try:
            current_facility = get_object_or_404(Facility, id=facility_id)
            old_facility_id = current_facility.id
            current_facility.id = None
            current_facility.is_draft = True
            # do not publish for duplicated facility
            current_facility.is_published = False
            current_facility.save()
            new_facility = get_object_or_404(Facility, id=current_facility.id)
            current_facility = get_object_or_404(Facility, id=old_facility_id)


            for day_slot in FacilityDaySlot.objects.filter(facility_id=current_facility.id):
                day_slot.day_slot_id = None
                day_slot.facility_id = new_facility.id
                day_slot.save()

                for time_slot in day_slot.times.all():
                    time_slot.id = None
                    time_slot.day_slot = day_slot
                    time_slot.save()

            message = {
                'message': 'duplicate facility created and id is {}'.format(new_facility.id)
            }
            return Response(message, status=status.HTTP_201_CREATED)
        except Exception as e:
            logger.error('error while creating duplicate event %s', e)
            message = {
                'message': str(e)
            }
            return Response(message, status=status.HTTP_400_BAD_REQUEST)

    else:
        message = {
            'message': 'facility_id required in request to duplicate'
        }
        return Response(message, status=status.HTTP_400_BAD_REQUEST)

Я получаю вывод как: 

 "day_slots": [
        {
            "day_slot_id": "6fea1b94-4d62-11ea-96b5-6095cf4fade1",
            "time_slots": [],

Почему временные интервалы пусты?

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