views.py 文件源码

def get_object(self, queryset=None):
        """
        Override default behavior from django.views.generic.SingleObjectMixin
        to exclusively get the Quip object by its uuid.
        """
        if queryset is None:
            queryset = self.get_queryset()

        uuid = self.kwargs.get('uuid')
        try:
            queryset = queryset.filter(uuid=uuid)
            obj = queryset.get()
        except (ValidationError, ValueError, queryset.model.DoesNotExist):
            # ValidationError and ValueError are to deal with malformed inputs
            # that aren't valid uuids.
            raise Http404(_("No %(verbose_name)s found matching the query") %
                          {'verbose_name': queryset.model._meta.verbose_name})

        return obj