是否可以使用嵌套关系序列化器作为选项?这是文档中的序列化程序示例:
class TrackSerializer(serializers.ModelSerializer):
class Meta:
model = Track
fields = '__all__'
class AlbumSerializer(serializers.ModelSerializer):
tracks = TrackSerializer(many=True, read_only=True)
class Meta:
model = Album
fields = '__all__'
当我调用专辑列表 localhost:8000/album/1/
时,这是响应:
{
'album_name': 'The Grey Album',
'artist': 'Danger Mouse',
'tracks': [
{'order': 1, 'title': 'Public Service Announcement', 'duration': 245},
{'order': 2, 'title': 'What More Can I Say', 'duration': 264},
{'order': 3, 'title': 'Encore', 'duration': 159},
...
],
}
是否有类似localhost:8000/album/1/?include=tracks
的选项,因此轨道数据仅在include
参数中声明时出现。
最佳答案
一个例子
class OrderSerializer(ModelSerializer):
payments = PaymentSerializer(many=True, read_only=True)
evaluations = OrderEvaluationSerializer(many=True, read_only=True)
def __init__(self, *args, **kwargs):
super(OrderSerializer, self).__init__(*args, **kwargs)
request = kwargs['context']['request']
include_address = request.GET.get('include_address', False) # <<<---
if include_address: # <<<---
self.fields['user_location'] = UserLocationSerializer(read_only=True, context=kwargs['context']) # <<<---
来自这里:http://masnun.com/2015/10/21/django-rest-framework-dynamic-fields-in-serializers.html
关于python - Django Rest Framework 可选的嵌套关系,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55046594/