Serializer returns object instead fields

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Using Django 2.1/Django Rest Framework.

I am receiving the Model object output from DRF instead of the actual fields.

I would like to recieve all the items for both the audio_links and release_artists tables.

Here's what I have.

Output

{ "title": "Attack The Dancefloor Volume Two", "audiolinks": [ "AudioLinks object (55708)", "AudioLinks object (55709)", "AudioLinks object (55710)", "AudioLinks object (55711)" ], "releaseartists": [ "ReleaseArtists object (140)", "ReleaseArtists object (141)" ] }

models.py

class AudioLinks(models.Model):
    release = models.ForeignKey('ReleasesAll', models.DO_NOTHING, db_column='release_id', related_name='audiolinks')
    track_number = models.IntegerField()
    class Meta:
        managed = False
        db_table = 'audio_links'

class ReleaseArtists(models.Model):
    release = models.ForeignKey('ReleasesAll', models.DO_NOTHING, db_column='release_id', related_name='releaseartists')
    artists = models.CharField(max_length=100)

    class Meta:
        managed = False
        db_table = 'release_artists'

views.py

class ListReleaseDetailView(generics.RetrieveUpdateDestroyAPIView):

    queryset = ReleasesAll.objects.all()
    serializer_class = ReleasesSerializer
    def get(self, request, *args, **kwargs):
        try:
            a_release = self.queryset.prefetch_related('releaseartists','audiolinks').get(pk=kwargs['release_id'])
            return Response(ReleasesSerializer(a_release).data)

        except ReleasesAll.DoesNotExist:
            return Response(
                data = {
                    "message": "{} does not exist".format(kwargs["release_id"])
                },
                status=status.HTTP_404_NOT_FOUND
            )

serializers.py

class ReleasesSerializer(serializers.ModelSerializer):
    audiolinks = serializers.StringRelatedField(many=True)
    releaseartists = serializers.StringRelatedField(many=True)

    class Meta:
        model = ReleasesAll
        fields = ('title','audiolinks','releaseartists')
django-serializer django-rest-framework django-views django-models django
1 Answers

serializers.stringRelatedField gives the output of the __str__ method defined on the Model.

Hence you are getting this "AudioLinks object (55708)" and ReleaseArtists object (141), which is the default __str__ representation of any model.

In order to get all fields, you must define serializers for every other model that is related to the required fields as such:

class AudioLinksSerializer(serializers.ModelSerializer):
    class Meta:
        model = AudioLinks
        fields = ('__all__')

class ReleaseArtistsSerializer(serializers.ModelSerializer):
    audiolinks = serializers.StringRelatedField(many=True)
    releaseartists = serializers.StringRelatedField(many=True)

    class Meta:
        model = ReleaseArtists
        fields = ('__all__')

and then:

class ReleasesSerializer(serializers.ModelSerializer):
    audiolinks = AudioLinksSerializer(many=True)
    releaseartists = ReleaseArtistsSerializer(many=True)

    class Meta:
        model = ReleasesAll
        fields = ('title','audiolinks','releaseartists')

That would do enough for you to get all fields.

***And also as of Django convention, you need to name the models as in singular form i.e, AudioLink, ReleaseArtist. This way you see the model as a single object. And it will be easier when you try to get audiolinks as you will be thinking like "there are many AudioLink objects and I am getting few of them"

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