[Django]-Access fields in Django intermediate model

The members field in your example is a ManyToManyField, so it’s a way to access many people rather than one person.
The object that is under the members field is actually a special type of Manager, not a Person:

>>> print my_group.members
<django.db.models.fields.related.ManyRelatedManager object at 0x181f7d0>

To understand better what a Manager is, see the documentation.

To access a person’s name you would do for example:

>>> for person in my_group.members.all():
>>>     print person.name

You cannot access the fields in your Membership model via the Manager in the members field. To access any of the fields in it you would do:

>>> for membership in my_group.membership_set.all():
>>>     print membership.date_joined

And so if you had a field called name in your Membership model, you would access it like this:

>>> for membership in my_group.membership_set.all():
>>>     print membership.name

A second way to access a Person’s name would be:

>>> for membership in my_group.membership_set.all():
>>>     print membership.person.name

Note that membership_set is a default name for the manager pointing towards the membership, but it can be changed by specifying related_name in the corresponding foreign key. For example if the foreign key from the Membership to the Group would be defined like such:

    group = models.ForeignKey(Group, related_name="group_members")

Then you would access the manager using group_members:

>>> for membership in my_group.group_members.all():
>>>     print membership.name

Hope that helps a little 🙂