Question

我有这样的模型

class ProjectTemplate(models.Model):
    project_template_id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=64)
    description = models.TextField(max_length=255)
    created_date = models.DateTimeField(auto_now_add=True)
    modified_date = models.DateTimeField(auto_now=True)
    created_by = models.IntegerField(blank=True, null=True)
    modified_by = models.IntegerField(blank=True, null=True)
    activated = models.BooleanField(default=False)
    org_id = models.IntegerField(blank=False,null=False)

    class Meta:
        db_table = 'project_template'

    def __str__(self):
        return self.name

和像这样的序列化程序类

class ProjectTemplateSerializer(serializers.ModelSerializer): 
    class Meta:
         model = ProjectTemplate

在created_by字段中我将用户ID存储在数据库中，在列出项目模板时，基本上我将获得create_by字段的用户ID，

如何更改我的序列化程序类以获得这样的字典

{"user_id":id,"user_name":name}

for created_by field

Answer 1

就像Sayse所说，你最好为这样的用户制作一个外键：

create_by = models.ForeignKey("User", related_name="project_user")

然后您可以通过以下方式访问用户的信息，例如user_name或其他内容：

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ("id", "user_name")

class ProjectTemplateSerializer(serializers.ModelSerializer): 
    user = UserSerializer(source="user", read_only=True)

    class Meta:
         model = ProjectTemplate
         fields = (
            "id", "user",
         )

更改序列化程序类中的特定字段值

1 个答案: