如何在django rest框架中包含与模型序列化相关的字段？

我有两种型号：

class User(models.Model):
  username = models.CharField()

及

使用此类序列化程序：

from rest_framework.serializers import ModelSerializer

class PostSerializer(ModelSerializer):
    owner = serializers.Field(source='owner.id')

    class Meta:
        model = Post
        fields = ['text', 'owner']

from myapp import UserSerializer
from rest_framework.serializers import ModelSerializer

class PostSerializer(ModelSerializer):
    owner = UserSerializer()

    class Meta:
        model = PostModel
        fields = ['id', 'owner']

我收到所有带有所有者ID的帖子。我如何修改序列化程序以获得包含整个用户模型的所有帖子

我试着 从rest_framework.Serializer导入ModelSerializer

class PostSerializer(ModelSerializer):
    owner = serializers.Field(source='owner')

    class Meta:
        model = Post
        fields = ['text', 'owner']

---

但这只将id替换为用户名，而不是我所期望的整个模型（因为用户的表示返回用户名字段）。

在

ModelSerializer

的

Meta

类中使用

depth

选项：

class PostSerializer(ModelSerializer):

    class Meta:
        model = Post
        fields = ['text', 'owner']
        depth = 1

还请注意，您不需要包括

作者

字段

---

文档。

解决方案是这样定义UserSerializer扩展ModelSerializer

from rest_framework.serializers import ModelSerializer

class UserSerializer(ModelSerializer):

    class Meta:
        model = UserModel
        fields = ['id', 'username']

然后在后序列化程序中使用它：

from rest_framework.serializers import ModelSerializer

class PostSerializer(ModelSerializer):
    owner = serializers.Field(source='owner.id')

    class Meta:
        model = Post
        fields = ['text', 'owner']

from myapp import UserSerializer
from rest_framework.serializers import ModelSerializer

class PostSerializer(ModelSerializer):
    owner = UserSerializer()

    class Meta:
        model = PostModel
        fields = ['id', 'owner']

---

关于解决方案。这不是我想要的。我想将唯一的字段，而不是所有字段扩展到给定的深度。