I am following the example in the documentation: 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)
In this case, given a Person object, how can I access all the groups that Person is in?
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Answer
You access these with:
Group.objects.filter(members=my_person_object)