[Django]-How to use ListSerializer with a ModelSerializer?

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0👍

✅

Had to handle this error by updating to_representation method on the PrimaryKeyRelatedField class

class NodePrimaryKeyField(serializers.PrimaryKeyRelatedField):
    """
    Custom DRF serializer field for proper handling of
    Node Foreign Key by ListSerializer on validation error
    """
    def to_representation(self, value):
        """
        Return pk value of serialized Node object
        if available else return given ID value
        """
        if self.pk_field is not None:
            return self.pk_field.to_representation(value.pk)
        return getattr(value, 'pk', value)
👤bbmhmmad

0👍

The serializer.data property is only valid if you have a saved an instance to the serializer.
Either call serializer.save() or use serializer.validated_data to access data prior to saving.

Checkout this link for further information.

👤Rene B.

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