forms.py 文件源码

def handle(self, request):
        cladeChanged = False
        idCladeMap = {c.id: c for c in Clade.objects.all()}
        for entry in self.elements:
            data = entry.data
            try:
                clade = idCladeMap[data['idField']]
                if clade.isChanged(**data):
                    problem = clade.setDelta(request, **data)
                    if problem is None:
                        with transaction.atomic():
                            clade.save()
                            cladeChanged = True
                    else:
                        messages.error(
                            request, clade.deltaReport(**problem))
            except Exception:
                logging.exception('Problem saving clade '
                                  'in view_clades.')
                messages.error(request,
                               'Problem saving clade data: %s' % data)
        return cladeChanged