Django中drf之序列化高级用法：source和定制字段的两种方式

1 序列化高级用法之source

1.0准备数据，创建表和序列化类：

序列化类Serializer.py中：

class BookSerializer(serializers.Serializer):
    id = serializers.IntegerField(required=False)
    name = serializers.CharField()
    price = serializers.IntegerField(max_value=100, error_messages={'max_value': '太高了！买不起！'}, read_only=True)

class Publish(models.Model):
    name = models.CharField(max_length=32)
    addr = models.CharField(max_length=32)

表模型models.py中：

class Book(models.Model):
    name = models.CharField(max_length=32)
    price = models.CharField(max_length=32)

    publish = models.ForeignKey(to='Publish', on_delete=models.SET_NULL, null=True)
    authors = models.ManyToManyField(to='Author')

1.1修改前