訪問 Django 中多對多關系中的 model 字段

Question

我正在關注文檔中的示例： https://docs.djangoproject.com/en/3.2/topics/db/models/#extra-fields-on-many-to-many-relationships

from django.db import models

class Person(models.Model):
    name = models.CharField(max_length=128)

    def __str__(self):
        return self.name

class Group(models.Model):
    name = models.CharField(max_length=128)
    members = models.ManyToManyField(Person, through='Membership')

    def __str__(self):
        return self.name

class Membership(models.Model):
    person = models.ForeignKey(Person, on_delete=models.CASCADE)
    group = models.ForeignKey(Group, on_delete=models.CASCADE)
    date_joined = models.DateField()
    invite_reason = models.CharField(max_length=64)

在這種情況下，給定一個人 object，我如何訪問該人所在的所有組？

Answer 1

您可以通過以下方式訪問這些：

Group.objects.filter(members=)