Populating a non-model field

[Cherie Pun]

Hi,

I am new to Django REST framework. There are two questions regarding to what I want to achieve.
1) I followed the tutorial and manage to return a list of levels and details of each level when pk is provided. I am wondering if there's a good way of returning more fields in detail and less in list when using the default ViewSet
2) When returning the details of a level, I need to return a field that is not in the database model. It will need to be populated programmically, is there a good way to do this?

The following code is the serializer and the view

class LevelSerializer(serializers.ModelSerializer):
    episode = serializers.HyperlinkedRelatedField(view_name='episode-detail', read_only=True)

    class Meta:
        model = Level
        fields = ('url', 'name', 'episode')

class EpisodeSerializer(serializers.ModelSerializer):

    class Meta:
        model = Episode
        fields = ('url', 'name')

class LevelViewSet(viewsets.ModelViewSet):
    queryset = Level.objects.all()
    serializer_class = LevelSerializer

I would like to populate a field called title and use the following code as the string is stored in a separate .py file.

title = getattr(messages, title)

Thanks a lot in advance for helping!
Cherie

[Filipe Ximenes]

1) You can have two serializers, one with less fields and the other with more. Then, you can overwrite the `get_serializer_class` method and return the class of the desired serializer according to the ``request.method``

2) Try a serializer SerializerMethodField http://www.django-rest-framework.org/api-guide/fields/#serializermethodfield

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[Cherie Pun]

I will try that out, thanks a lot!

Cheers,
Cherie

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