Django REST框架-自定义权限未被评估

Question

我正在尝试为扩展了viewsets.ModelViewSet的类设置自定义权限，但是似乎我的权限没有得到评估。这是我的视图：

from rest_framework import viewsets
from rest_framework.authentication import SessionAuthentication, BasicAuthentication
from rest_framework.permissions import IsAuthenticated

import models
import serializers
from permissions import IsAdminOrAuthenticatedReadOnly

class KPIViewSet(viewsets.ModelViewSet):
    '''
    API endpoint that allows KPI metadata to be viewed or edited
    '''

    authentication_classes = (BasicAuthentication,)
    permission_classes = (IsAdminOrAuthenticatedReadOnly,)

    queryset = models.KPI.objects.all()
    serializer_class = serializers.KPISerializer

以下是我的权限类：

from rest_framework.permissions import BasePermission, SAFE_METHODS

class IsAdminOrAuthenticatedReadOnly(BasePermission):
    def has_permissions(self, request, view):

        if request.method in SAFE_METHODS:
            return request.user and request.user.is_authenticated()

        return request.user and request.user.is_staff()

我遇到的问题是IsAdminOrAuthenticatedReadOnly似乎从未被评估。我通过强制它始终返回“False”和在视图中将permission_classes值切换为“IsAuthenticated”来测试了这一点。在前一种情况下，对端点的请求返回，就好像没有身份验证要求一样。在后者中，身份验证按预期执行。

你有什么想法我错过了什么吗？

- Daniel Hostetler

Answer 1

方法名称应为 has_permission 而非 has_permissions（没有 s）;)

- Alex T