HyperlinkedIdentityField returning the wrong detail-view pk in url ?

[Toran Billups]

I just got my hypermedia setup working and realized that my child models seem to be generating incorrect one-to-many inverse urls 

For example

In the database I have a session with a speaker. The session pk is #2 and the speaker associated has a pk of #3

When I hit the root sessions list url I get the following (all correct so far)
[
    {
        "id": 2, 
        "url": "http://localhost:8000/codecamp/sessions/2/", 
        "name": "Getting started with ember.js", 
        "room": "Room B", 
        "desc": "about ember .. huh", 
        "speakers": "http://localhost:8000/codecamp/sessions/2/speakers/"
    }
]


Now when I click the speakers link I get the following (not correct)

[
    {
        "id": 3, 
        "url": "http://localhost:8000/codecamp/speakers/3/", 
        "name": "Joel Taddei", 
        "session": "http://localhost:8000/codecamp/sessions/3/"
    }
]

What is wrong here is that session (the url just above) should link back to session with pk #2 (not #3)

Here is my urls.py

url(r'^codecamp/speakers/$', csrf_exempt(SpeakerDetail.as_view()), name='speaker-list'),
url(r'^codecamp/sessions/(?P<pk>[0-9]+)/speakers/$', csrf_exempt(SessionSpeakers.as_view()), name='session-speakers'),
url(r'^codecamp/sessions/(?P<pk>\d+)/$', csrf_exempt(SessionDetail.as_view()), name='session-detail')

Here are the 3 views above

class SessionDetail(generics.RetrieveUpdateDestroyAPIView):
    model = Session
    serializer_class = serializers.SessionSerializer

class SessionSpeakers(generics.ListCreateAPIView):
    model = Speaker
    serializer_class = serializers.SpeakerSerializer

    def get_queryset(self):
        session_pk = self.kwargs.get('pk', None)
        if session_pk is not None:
            return Speaker.objects.filter(session__pk=session_pk)
        return []

class SpeakerDetail(generics.RetrieveUpdateDestroyAPIView):
    model = Speaker
    serializer_class = serializers.SpeakerSerializer

Here is the serializers

class SessionSerializer(serializers.HyperlinkedModelSerializer):
    id = serializers.IntegerField()
    url = serializers.HyperlinkedIdentityField(view_name='session-detail')
    speakers = serializers.HyperlinkedIdentityField(view_name='session-speakers')

    class Meta:
        model = Session
        fields = ('id', 'url', 'name', 'room', 'desc', 'speakers')

class SpeakerSerializer(serializers.HyperlinkedModelSerializer):
    id = serializers.IntegerField()
    url = serializers.HyperlinkedIdentityField(view_name='speaker-detail')
    session = serializers.HyperlinkedIdentityField(view_name='session-detail')  #this seems to be the broken code using pk of speaker?                                   

    class Meta:
        model = Speaker
        fields = ('id', 'url', 'name', 'session')

My first question is - am I doing something wrong in the serializer that is causing this to gen the wrong id?

If not -is this a legit bug in the framework? 

Thank you in advance

[Tom Christie]

In SpeakerSerializer, use a HyperlinkedRelatedField instead.  (Since it's a relationship)

[Toran Billups]

Tom -u rock (and clearly I cannot read as this was spelled out in the awesome api docs)

thanks again

Toran