父模型（包括子模型）的序列化 [英] Serialization of parent model including child models

问题描述

我有一些模型-商品模型，Clother和子模型，例如配饰，外套等：

I have models - Commodity, Clother and child models, as Acessories, Outwear, etc.:

class Commodity(models.Model):
    atribute = models.CharField()

class Clother(models.Model):
    commodity = models.ForeignKey(Commodity)
    clother_atribute = models.CharField()

class Acessories(models.Model):
    clother = models.ForeignKey(Clother)
    acessories_atribute = models.CharField() 

class Outwear(models.Model):
    clother = models.ForeignKey(Clother)
    outwear_atribute = models.CharField()

如何序列化父模型商品以调用所有垂直依赖项。我想查询商品ID并获取所有Clother属性和Acessories或Outwear属性。谢谢！

How can I serialize parent model Commodity to call all vertical dependencies. I suppose to query Commodity id and get all Clother attributes and Acessories or Outwear attributes. Thanks!

推荐答案

如果我了解您的问题，则可以定义 ClotherSerializer 。您可以使用 depth = 1 来序列化此序列化器中的嵌套对象：

If I understood your problem you can define ClotherSerializer. You can use depth = 1 to serialize nested objects in this serializer:

class ClotherSerializer(serializers.ModelSerializer):
    class Meta:
        model = Clother
        fields = ('id', 'acessories_set', 'outwear_set')
        depth = 1

稍后在 CommoditySerializer 中，您可以使用 ClotherSerializer 序列化衣服及其所有关系：

Later in your CommoditySerializer you can use ClotherSerializer to serialize clother and all it's relation:

class CommoditySerializer(serializers.ModelSerializer):
    clother_set = ClotherSerializer(many=True)
    class Meta:
        model = Commodity
        fields = ('id', 'clother_set')

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