该模型定义了一个文章和一个作者类。它们以多对多关系链接在一起。此关系通过自定义中间表定义:
# models.py
class Article(models.Model):
title = models.CharField(max_length=500)
authors = models.ManyToManyField(Author, through='AuthorOrder')
class Author(models.Model):
name = models.CharField(max_length=255)
class AuthorOrder(models.Model):
author = models.ForeignKey(Author)
article = models.ForeignKey(Article)
writing_order = models.IntegerField()
序列化应返回如下所示的 JSON:
#articles_json
{"fields":
{
"title": "A title",
"authors": [
{
"name":"Author 1",
"writing_order": 1
},
{
"name":"Author 2",
"writing_order": 2
}
}
}
}
我确定了两个解决方案。
- 这个建议单独序列化作者顺序字段。
- 第二个是使用 Django Rest 框架。
我尝试了两个,但没有成功。你知道另一种方法吗?
感谢您的
反馈,我专注于 Django REST 框架,它可以工作。以下是我编写的自定义序列化程序:
# serializers.py
from rest_framework import serializers
from app.models import Article, AuthorsOrder
class AuthorsOrderSerializer(serializer.ModelSerializer):
author_name = serializers.ReadOnlyField(source='author.name')
class Meta:
model = AuthorsOrder
fields = ('writing_order', 'author_name')
class ArticleSerializer(serializer.ModelSerializer):
authors = AuthorsOrderSerializer(source='authorsorder_set', many=True)
class Meta:
model = Article
fields = ('title', 'authors')
来源:
- 在 Django Rest 框架的响应中包含中介(通过模型)
- https://bitbucket.org/snippets/adautoserpa/MeLa/django-rest-framework-manytomany-through