Django:显示用户名而不显示ID，怎么办? [英] Django: Showing username and not ID, how?

问题描述

我有以下序列化程序类.

I have the following serializers class.

class ProfileSerializer(serializers.ModelSerializer):
    class Meta:
        model = Profile
        fields = ('id', 'name', 'active', 'type', 'user')

列出所有配置文件时，用户字段显示用户ID.如何更改它以显示user.username?我知道我的模型只是将其添加到我的元类中，但是没有创建用户模型(它是Django的一部分).在调用用户以显示用户名而不是ID时，我该如何告诉Django?

When listing all profiles the user field shows the user ID. How do I change this to show the user.username? I know with my models I just add this to my meta class, but as did not create the user model (its part of Django). How do I tell Django when calling a user to show the username and not the id?

非常感谢.

推荐答案

两种明显的处理方法:

首先，您可以使用 dotted.notation 强制 user 字段的rel ="noreferrer">源参数为 user.username ，而不是默认的 user .

Firstly you can use the dotted.notation to force the source argument of the user field to be user.username instead of the default user.

class ProfileSerializer(serializers.ModelSerializer):
    user = serializers.Field(source='user.username')

    class Meta:
        model = Profile
        fields = ('id', 'name', 'active', 'type', 'user')

请注意， Field 是标准的只读字段，因此您将无法使用此序列化程序来更新用户.

Note that Field is a standard read-only field, so you wouldn't be able to update the user using this serializer.

或者，如果您希望用户成为可写字段，则可以使用

Alternatively, if you want user to be a writable field, you can use a SlugRelatedField like so...

class ProfileSerializer(serializers.ModelSerializer):
    user = serializers.SlugRelatedField(slug_field='username')

    class Meta:
        model = Profile
        fields = ('id', 'name', 'active', 'type', 'user')

如果需要，还可以通过将 read_only = True 添加到 SlugField 来使用第二种方法，但是使用只读字段.

If you want you could also use the second approach but use a read-only field, by adding read_only=True to the SlugField.

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