在配置文件序列化程序

Question

我有一个个人资料模型，用户注册后必须更新他们的个人资料。为此我设计了两个序列化程序，一个UserSerializer显示用户列表，另一个ProfileSerializer有很多字段供用户添加到他们的个人资料中。用户不仅可以更新他们的个人资料，如身高，体重，年龄，位置，身体类型等，还应该从个人资料中更新first_name，last_name和email。

这是我的UserSerializer和ProfileSerializer

class ProfileSerializer(serializers.ModelSerializer):
    # url = serializers.HyperlinkedRelatedField(source="user", view_name="user_profile")
    user = serializers.PrimaryKeyRelatedField(read_only=True)
    token = serializers.PrimaryKeyRelatedField(read_only=True)

    class Meta:
        model = Profile
        fields = ('token', 'user', 'current_location', 'permanent_location', 'dob',
                    'about_me', 'gender_status', 'create_profile_for', 'marital_status',
                    'height', 'weight', 'body_type', 'complexion',)

    def update(self, instance, validated_data):
        first_name = validated_data.pop('first_name', None)
        last_name = validated_data.pop('last_name', None)
        user_inst_fields = {}
        if first_name:
            user_inst_fields['first_name'] = first_name
        if last_name:
            user_inst_fields['last_name'] = last_name
        if user_inst_fields:
            User.objects.update_or_create(id=instance.user.id, defaults=user_inst_fields)
        profile, created = Profile.objects.update_or_create(token=instance.token, defaults=validated_data)
        print('profile', profile, created)
        return profile

class UserSerializer(serializers.ModelSerializer):
    profile = ProfileSerializer(required=True)
    class Meta:
        model = User
        fields = ('id', 'profile', 'username', 'email', 'first_name', 'last_name',)

我无法显示first_name，last_name和username的字段，以便用户更新它们及其个人资料。

您可以看到屏幕截图，没有显示first_name，last_name和用户名

Answer 1

您在first_name中使用last_name关键字参数在username中显示ProfileSerializer，source和CharField以及first_name和用户名

class ProfileSerializer(serializers.ModelSerializer):
    # url = serializers.HyperlinkedRelatedField(source="user", view_name="user_profile")
    user = serializers.PrimaryKeyRelatedField(read_only=True)
    token = serializers.PrimaryKeyRelatedField(read_only=True)
    first_name = serializers.CharField(source = "user.first_name")
    last_name = serializers.CharField(source = "user.last_name")
    username = serializers.CharField(source = "user.username")

    class Meta:
        model = Profile
        fields = ('token', 'user', 'current_location', 'permanent_location', 'dob',
                    'about_me', 'gender_status', 'create_profile_for', 'marital_status',
                    'height', 'weight', 'body_type', 'complexion',)

    def update(self, instance, validated_data):
        first_name = validated_data.pop('first_name', None)
        last_name = validated_data.pop('last_name', None)
        user_inst_fields = {}
        if first_name:
            user_inst_fields['first_name'] = first_name
        if last_name:
            user_inst_fields['last_name'] = last_name
        if user_inst_fields:
            User.objects.update_or_create(id=instance.user.id, defaults=user_inst_fields)
        profile, created = Profile.objects.update_or_create(token=instance.token, defaults=validated_data)
        print('profile', profile, created)
        return profile

现在，DRF将从个人资料模型的first_name关系中提取last_name，email和user。