2019-05-27 Django-Rest-Framework serializer 使用 __all__ 返回数据不存在id

class SampleSerializer(serializers.HyperlinkedModelSerializer):
    # creator = serializers.ReadOnlyField(source='creator.username')
    # serializer 变换中 '__all__' 没有 id 属性, 手动添加此属性, 以适应 __all__ 达到偷懒的效果
    id = serializers.SerializerMethodField()

    def get_id(self, instance):
        return instance.id

    class Meta:
        model = Sample
        fields = '__all__'