django rest框架序列化程序返回名称不是整数

我正在做一个简单的列表视图，其中当前返回值如下所示-

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": 1
    }
]

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": "John Smith"
    }
]

class ClassListSerializer(serializers.ModelSerializer):
    ownername = serializers.CharField(source='owner.username')
    class Meta:
        model=ClassList
        fields = ('name', 'description', 'ownername')

问题是我不想要整数，我想要它像这样显示-

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": 1
    }
]

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": "John Smith"
    }
]

class ClassListSerializer(serializers.ModelSerializer):
    ownername = serializers.CharField(source='owner.username')
    class Meta:
        model=ClassList
        fields = ('name', 'description', 'ownername')

我发现唯一的解决方法就是做一个像这样的序列化程序-

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": 1
    }
]

[
    {
        "name": "John",
        "description": "John's Group",
        "owner": "John Smith"
    }
]

class ClassListSerializer(serializers.ModelSerializer):
    ownername = serializers.CharField(source='owner.username')
    class Meta:
        model=ClassList
        fields = ('name', 'description', 'ownername')

问题是我不想将字段更改为

ownername

在模型中设置以下内容适用于模型的传统查询-

def __str__(self):
    return self.username

但我猜，因为DRF的读取方式不同，所以它不遵循ForeignKey映射和返回

这样做不起作用，因为它试图用已经存在的

owner

覆盖

owner

class ClassListSerializer(serializers.ModelSerializer):
    owner = serializers.CharField(source='owner.username')
    class Meta:
        model=ClassList
        fields = ('name', 'description', 'owner')

那么如何让它显示名称而不是整数呢？

正是您想要的：

class ClassListSerializer(serializers.ModelSerializer):
    owner = serializers.SlugRelatedField(
        slug_field='username',
        queryset=User.objects.all())
    class Meta:
        model=ClassList
        fields = ('name', 'description', 'owner')

---

多年来，我发现自己在RTFM方面存在问题。谢谢你，这正是我想要的！