python (django) 3. 权限 permission_detail": "you do not have permission to perform th

1. api/permission.py

# -*- coding: utf8 -*-
 
 
class GradeOnePermission(object):
 
    def has_permission(self, request, view):
        grade = request.user.grade
        print(request.user)
        print(grade)
        if grade == 1:
            return True
        else:
            return False

2. api/views.py

from api.authenticate import StudentAuthenticate
from api.permission import GradeOnePermission
 
 
class TokenView(GenericViewSet):
 
    # authentication_classes = []
    permission_classes = [GradeOnePermission]
    parser_classes = [JSONParser, ]
 
    def get(self, request, *args, **kwargs):
        name = request.query_params.get('name')
        try:
            stu = Student.objects.get(name=name)
        except Student.DoesNotExist:
            raise ParseError(_('Student does not include this name'))
 
        token = stu.token.token
        res = dict()
        res['code'] = 200
        res['name'] = name
        res['token'] = token
        logger.info(pformat(res))
 
        return Response(data=res, status=status.HTTP_200_OK)

3. settings.py

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES':  ['api.authenticate.StudentAuthenticate'],
    'DEFAULT_PERMISSOIN_CLASSES': ['api.permission.GradeOnePermisson'],
}

4. postman

(1)

url: http://127.0.0.1:8011/api/v1/auth/

method: post

data: {
    "name": "student2",
    "password": "password1",
    "grade": 2
}

return:

{
    "code": 200,
    "name": "student2",
    "token": "950f0ed2b4f164900f996bf1c6bf225c",
    "msg": "创建成功"
}

(2)

url: http://127.0.0.1:8011/api/v1/token/?name=student2&token=950f0ed2b4f164900f996bf1c6bf225c

method: get

return:

{
    "detail": "You do not have permission to perform this action."
}

(3)

url: http://127.0.0.1:8011/api/v1/token/?name=student1&token=dbfa6b230b9ca22302a00ea918346f86

method: get

return:

{
    "code": 200,
    "name": "student1",
    "token": "dbfa6b230b9ca22302a00ea918346f86"
}