我有三个模型,其中一个是连接其他两个的中介模型。我可以通过外键关系正确地嵌套这两个模型,但是我想使用这个中介模型将它们连接在一起,因为在这种情况下不希望有直接的键关系。底部的期望输出。在
模型.py
class Parent(models.Model):
first_name = models.CharField(max_length=128)
last_name = models.CharField(max_length=128)
class Child(models.Model):
given_name = models.CharField(max_length=128)
# reverse relation works, but an intermediary model is preferred
# parent = models.ForeignKey(Parent, related_name="parents" on_delete=models.PROTECT)
class Link(models.Model):
parent = models.ForeignKey(Parent, on_delete=models.PROTECT)
child = models.ForeignKey(Child, on_delete=models.PROTECT)
序列化程序.py
^{pr2}$api_输出.json
{
"id": 1,
"first_name": "John",
"last_name": "Appleseed",
"children": [
{
"id": 1,
"given_name": "Uno Appleseed"
},
{
"id": 2,
"given_name": "Dos Appleseed"
}
]
}
尝试在LinkSerializer中使用^{} 关键字指定字段源:
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