I want to restrict update of a record to the record owner in an 
UpdateAPIView with Django REST, but I don't know how to code the method.

For example, something like this:

from rest_framework import generics
from testapp.serializers import UserProfileSerializer
from rest_framework.renderers import JSONRenderer
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework import permissions
from oauth2_provider.ext.rest_framework import TokenHasReadWriteScope

class UserProfileView(generics.UpdateAPIView):
    permission_classes = [permissions.IsAuthenticated, 
TokenHasReadWriteScope]
    serializer_class = UserProfileSerializer
    queryset = UserProfile.objects.all()
    # patch method?
    # if UserProfile user != self.request.user:
    #     raise exceptions.PermissionDenied
    # else:
    #     continue as normal

Where "user" is a field on the UserProfile model.

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