External Mailing List Managers

Upon each successful subscription or unsubscription event, Django Newsletters sends a signal. This allows you to connect outside services.

Both signals provide the same two arguments: email and newsletter. The sender is always the newsletter.

from newsletters.signals import subscription, unsubscription

def print_subscription(sender, email, newsletter, *args, **kwargs):
    print "Subscription Event!"
    print email, newsletter

subscription.connect(print_subscription)

def print_unsubscription(sender, email, newsletter, *args, **kwargs):
    print "Unsubscription Event!"
    print email, newsletter

unsubscription.connect(print_unsubscription)

To make sure that newsletters are available, you can also listen to newsletter create and delete signals.

from django.db.models.signals import post_save, pre_delete
from newsletters.models import Newsletter

def create_external_list(sender, instance, created, *args, **kwargs):
    if created:
        external_service.create_list(sender.name, sender.id)

post_save.connect(create_external_list, sender=Newsletter)

def delete_external_list(sender, instance, *args, **kwargs):
    external_service.pre_delete(sender.id)

pre_delete.connect(delete_external_list, sender=Newsletter)