多表操作
class BookListSerializer(serializers.ListSerializer):
# 自定义的群增群改辅助类,没有必要重写create方法
def create(self, validated_data):
return super().create(validated_data)
def update(self, instance_list, validated_data_list):
return [
self.child.update(instance_list[index], attrs) for index, attrs in enumerate(validated_data_list)
]
# 外键字段默认显示的外键值(int类型),不会自己进行深度查询
# 深度查询方式:
# 1.子序列化:必须有子序列化类配合,且不能反序列化
# 2.配置depth:自动深度查询的是关联表的所有字段
# 3.插拔式@property:名字不能与外键名同名
class BookModelSerializer(serializers.ModelSerializer):
class Meta:
list_serializer_class = BookListSerializer
model = models.Book
fields = ['name','price','publish','authors','publish_info','author_list']
extra_kwargs = {
'publish':{
'write_only':True
},
'authors':{
'write_only':True
}
}
# 验证视图类是否将request请求参数通过context传入
def validate(self, attrs):
print('传入的request:%s'%self.context.get('request'))
return attrs
class PublishModelSerializer(serializers.ModelSerializer):
class Meta:
model = models.Publish
fields = ['name','address','books']