Django 自带后台搜索

class PositionListView(generics.ListAPIView):
    serializer_class = PositionListSerializer
    filter_backends = (DjangoFilterBackend,)
    filter_fields = (‘type‘, ‘experience‘, ‘city‘,)

    def get_queryset(self):
        """
        Optionally restricts the returned purchases to a given user,
        by filtering against a `username` query parameter in the URL.
        """
        queryset = Position.objects.filter(is_public=True)
        type_id = self.request.query_params.get(‘type‘, None)
        if type_id is not None:
            queryset = queryset.filter(type__id=type_id)
        exp_id = self.request.query_params.get(‘experience‘, None)
        if exp_id is not None:
            queryset = queryset.filter(experience__id=exp_id)
        city_id = self.request.query_params.get(‘city‘, None)
        if city_id is not None:
            queryset = queryset.filter(city__id=city_id)
        return queryset.order_by(‘-create_date‘)