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How to lookup django session for a particular user?

2017-06-23 18:05 537 查看

https://stackoverflow.com/questions/235950/how-to-lookup-django-session-for-a-particular-user

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This answer is being posted five years after the original question, but this SO thread is one of the top Google results when searching for a solution to this problem (and it's still something that isn't supported out of the box with Django).

I've got an alternate solution for the use case where you're only concerned with logged in user sessions, which uses an additional

UserSession

model
to map users to their sessions, something like this:

from django.conf import settings
from django.db import models
from django.contrib.sessions.models import Session

class UserSession(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL)
session = models.ForeignKey(Session)

Then you can simply save a new

UserSession

instance
any time a user logs in:

from django.contrib.auth.signals import user_logged_in

def user_logged_in_handler(sender, request, user, **kwargs):
UserSession.objects.get_or_create(user = user, session_id = request.session.session_key)

user_logged_in.connect(user_logged_in_handler)

And finally when you'd like to list (and potentially clear) the sessions for a particular user:

from .models import UserSession

def delete_user_sessions(user):
user_sessions = UserSession.objects.filter(user = user)
for user_session in user_sessions:
user_session.session.delete()

That's the nuts and bolts of it, if you'd like more detail I have a blog
post covering it.

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