AttributeError：类型 object 'StaffFilter' 没有属性 '_meta'

Question

When i try to access the urls, it kept return AttributeError: type object 'StaffFilter' has no attribute '_meta' . However, i already declared _meta in filters.py but the error kept returning. Is there any way to solve this problem?

filters.py

 from django_filters.rest_framework import FilterSet from django_filters import DateTimeFilter, BaseInFilter, CharFilter from.models import Staff class StaffFilter(FilterSet): department__in = BaseInFilter(field_name="department", lookup_expr='in') job_grade__in = BaseInFilter(field_name="job_grade", lookup_expr='in') class Meta: model = Staff fields = [ 'job_grade__in', 'department__in',]

Answer 1

Are you using filter_backends = (filters.DjangoFilterBackend,) and filterset_class = StaffFilter in your API View?

 from rest_framework import generics from django_filters import rest_framework as filters from myapp import Product class StaffList(generics.ListAPIView): queryset = Staff.objects.all() filter_backends = (filters.DjangoFilterBackend,) filterset_class = StaffFilter class StaffFilter(filters.FilterSet): department__in = BaseInFilter(field_name="department", lookup_expr='in') job_grade__in = BaseInFilter(field_name="job_grade", lookup_expr='in') class Meta: model = Staff

Docs: https://django-filter.readthedocs.io/en/latest/guide/rest_framework.html#adding-a-filterset-with-filterset-class