rdf序列化关联字段

## 问题描述

# 序列化方式
class OrderSerializer(serializers.ModelSerializer):
    class Meta:
        model = Order
        fields = "__all__"

## 得到的结果

{
        "id": 1,
        "quantity": 1,
        "amount": 20,
        "buy_time": "2022-12-27T22:48:48.611996+08:00",
        "customer": 1,
        "product": 1
    },

但，我需要得到：外键的关联字段名

# ==》解决方案

## 第一步：新增模型的 @property

class Order(models.Model):
    customer = models.ForeignKey(Customer, on_delete=models.RESTRICT, verbose_name="客户")
    product = models.ForeignKey(Product, on_delete=models.RESTRICT, verbose_name="产品")
    quantity = models.SmallIntegerField("购买数量")
    amount = models.SmallIntegerField("购买金额")
    buy_time = models.DateTimeField("购买时间", auto_now=True)  # 自动添加时间

    @property
    def customer_name(self):
        return self.customer.name

    @property
    def product_name(self):
        return self.product.name

## 第二步：修改序列化器

class OrderSerializer(serializers.ModelSerializer):
    class Meta:
        model = Order
        fields = ("customer_name", "product_name", "quantity", "amount", "buy_time")

## 得到想要的结果

{
        "customer_name": "李雷",
        "product_name": "车蜡",
        "quantity": 1,
        "amount": 20,
        "buy_time": "2022-12-27T22:48:48.611996+08:00"
    },

参考资料：https://my.oschina.net/u/4403815/blog/4094252