forms.py 文件源码

def handle(self, request):
        # Iterate entries that may be changed:
        for entry in self.cogclass:
            data = entry.data
            cogclass = CognateClass.objects.get(
                id=int(data['idField']))
            # Check if entry changed and try to update:
            if cogclass.isChanged(**data):
                try:
                    with transaction.atomic():
                        problem = cogclass.setDelta(request, **data)
                        if problem is None:
                            cogclass.save()
                        else:
                            messages.error(
                                request, cogclass.deltaReport(**problem))
                except Exception:
                    logging.exception('Problem saving CognateClass '
                                      'in view_cognateclasses.')
                    messages.error(
                        request,
                        'Problem while saving entry: %s' % data)