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Overriding perform_create() and get_object() did not prevent me from changing the course on the api views.
from django.shortcuts import get_object_or_404 from rest_framework import generics from . import models from . import serializers class ListCreateCourseView(generics.ListCreateAPIView): queryset = models.Course.objects.all() serializer_class = serializers.CourseSerializer class RetrieveUpdateDestroyCourseView(generics.RetrieveUpdateDestroyAPIView): queryset = models.Course.objects.all() serializer_class = serializers.CourseSerializer class ListCreateReviewView(generics.ListCreateAPIView): queryset = models.Review.objects.all() serializer_class = serializers.ReviewSerializer def get_queryset(self): return self.queryset.filter(course_id=self.kwargs.get('course_pk')) def perform_create(self, serializer): # prevent changing the course that is being reviewed course = get_object_or_404( models.Course, pk=self.kwargs.get('course_pk')) serializer.save(course=course) class RetrieveUpdateDestroyReviewView(generics.RetrieveUpdateDestroyAPIView): queryset = models.Review.objects.all() serializer_class = serializers.ReviewSerializer def get_object(self): return get_object_or_404( self.get_queryset(), course_id=self.kwargs.get('course_pk'), pk=self.kwargs.get('pk') )
Alex KoumparosPython Development Techdegree Student 36,862 Points
Can you verify that you're having the problem with both the
courses/x/reviews/ AND the
In the former case, you should be able to POST and the saved object should get a course id that corresponds with the URL regardless of what is chosen in the form. I was able to verify this behaviour.
In the latter case, we haven't written any code in the RetrieveUpdateDestroy view to replicate the
perform_create functionality that we have in the ListCreate view. Note that the
get_object method only provides the equivalent behaviour to the
get_queryset method from ListCreate.