Install lib with pip:
pip install django-alert
- OR -
Put the "alert" directory somewhere in your python path
Add "alert" to your installed apps (in the settings.py file)
Also add "django.contrib.sites" in installed apps in case it's not there.
Run ./manage.py migrate
Create an "alerts.py" file and import it at the bottom of your models.py file. This is where you will define your alert class. Every alert is subclassed from "alert.utils.BaseAlert"
Here is an example alert that is sent to users when they first sign up:
from django.contrib.auth.models import User from django.db.models.signals import post_save from alert.utils import BaseAlert class WelcomeAlert(BaseAlert): title = 'Welcome new users' description = 'When a new user signs up, send them a welcome email' signal = post_save sender = User default = False def before(self, created, **kwargs): return created def get_applicable_users(self, instance, **kwargs): return [instance]
Writing Alert Backends
Alert includes an Email Backend by default. But you can write a backend for any messaging medium!
Alert Backends just need to subclass BaseAlertBackend and implement a
send() method that accepts an alert instance
You can copy and paste the following code to get started:
from alert.utils import BaseAlertBackend class MyAlertBackend(BaseAlertBackend): def send()
When an alert is sent, a signal is fired (found in alert.signals). The "sender" keyword argument is the Alert you defined (WelcomeAlert in this case).
from alert.signals import alert_sent def do_something_after_welcome_alert_is_sent(sender, alert, **kwargs): pass alert_sent.connect(do_something_after_welcome_alert_is_sent, sender=WelcomeAlert)