django序列化父类

Question

给定我有2个模型：

class Member(models.Model):
    name = models.CharField()
    userid = models.CharField()
class GoldMember(Member):
    parent_model = models.OneToOneField(Member, parent_link=True)
    date_start = models.DateField()
serializers.serialize("json", gold_member, fields=['name', 'userid', 'date_start']
        , use_natural_foreign_keys=True)

当我打印JSON时，我只看到date_start字段。但是，我想拥有来自父类的name和userid。

不使用djangorestframework，因为它不用于任何REST API，我如何将GoldMember的JSON表示为

{'date_start' = '2016-01-01', 'name' = 'John Doe', 'userid' = 'john.doe'}

？

Answer 1

in serializers.py包括：

from rest_framework import serializers
from models import Member
from models import GoldMember

class MemberSerializer(serializers.ModelSerializer):
    class Meta:
        model = Member
        fields = ('id','name','userid')

class GoldMemberSerializer(serializers.ModelSerializer):
    parent_model = MemberSerializer(many=False,read_only=True)
    class Meta:
        model = GoldMember
        fields =  ('id','parent_model','date_start')

，然后在您的观点中某种方法：

 serializer = GoldMemberSerializer(gold_member,many=False)

此时您可以打印或返回

 serializer.data

应该包含您需要的JSON。