Django序列化正向查询只能取一个字段值吗？

Question

有文章和用户两个表，文章表关联了用户表。

文章表

class Articles(BaseModel):
    """文章表"""
    title = models.CharField(max_length=100, verbose_name='标题')
    # 关联作者
    authors = models.ForeignKey(to=Authors, on_delete=models.CASCADE, verbose_name='提问者', related_name='a_article')
    ...

用户表

class Authors(BaseModel):
    """前段作者表"""
    name = models.CharField(max_length=32, verbose_name='名称')
    avatar = models.CharField(max_length=255, verbose_name='头像地址')
    SEX_CHOICES = (
        ('0', '女'),
        ('1', '男'),
        ('3', '保密')
    )
    sex = models.CharField(max_length=1, choices=SEX_CHOICES, default=3, verbose_name='性别', null=True, blank=True)
 ...

用户序列化器：

class AuthorsSerializer(serializers.ModelSerializer):
    """用户"""
    class Meta:
        model = models.Authors
        fields = ('id', 'name', 'avatar')

文章正向查询用户表
序列化关联查询，source只能取一个字段吗？

class ArticlesSerializer(serializers.ModelSerializer):
    """文章"""
    author = serializers.CharField(source='authors.id')

    class Meta:
        model = models.Articles
        fields = ('id', 'title', 'browse', 'is_success', 'types', 'author')

source='authors.id' 只能查询一个字段，无法同时获取用户的id,name,avatar

Answer 1

直接用的你创建好了的 AuthorsSerializer 就行了，按照你提供的代码来看可以参考下面；

class ArticlesSerializer(serializers.ModelSerializer):

    author = AuthorsSerializer(source="authors", many=False)

    class Meta:
        model = models.Articles
        fields = fields = (
            'id', 'title', 'browse', 'is_success', 'types', 'author'
        )