In DRF documentation,
Note: The instance-level has_object_permission method will only be called if the view-level has_permission checks have already passed
Let’s assume following permission about user
object
- List : staff only
- Create : anyone
- Retrieve : own self or staff
- Update, Partial update : own self or staff
- Destroy : staff only
permissons.py
from rest_framework import permissions
class UserPermission(permissions.BasePermission):
def has_permission(self, request, view):
if view.action == 'list':
return request.user.is_authenticated() and request.user.is_admin
elif view.action == 'create':
return True
elif view.action in ['retrieve', 'update', 'partial_update', 'destroy']:
return True
else:
return False
def has_object_permission(self, request, view, obj):
# Deny actions on objects if the user is not authenticated
if not request.user.is_authenticated():
return False
if view.action == 'retrieve':
return obj == request.user or request.user.is_admin
elif view.action in ['update', 'partial_update']:
return obj == request.user or request.user.is_admin
elif view.action == 'destroy':
return request.user.is_admin
else:
return False
views.py
from .models import User
from .permissions import UserPermission
from .serializers import UserSerializer
from rest_framework import viewsets
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer
permission_classes = (UserPermission,)
For Django 2.0 replace is_authenticated()
with is_authenticated
. The method has been turned into an attribute.