OpenBlock users can subscribe to email alerts from any location they're interested in.
In order to support this feature, there is a script that needs to be called regularly. You can do this any way you like; would work fine.
Here's an example crontab file that sends the daily alerts once a day, and the weekly alerts once a week. Adjust the environment variables as needed:
DJANGO_SETTINGS_MODULE=obdemo.settings
VIRTUAL_ENV=/path/to/my/environment
@daily $VIRTUAL_ENV/bin/send_alerts —frequency daily
@weekly $VIRTUAL_ENV/bin/send_alerts —frequency weekly
Note that OpenBlock does not remember which alerts have already been sent, so you should not send eg. daily alerts more than once a day, or your users will get duplicate alert messages.
Disabling Alerts
Disabling Email Alerts entirely is easy. In your settings.py,
just remove "ebpub.alerts" from settings.INSTALLED_APPS.
(You can copy the setting from ebpub/default_settings.py and
modify it.) This will remove the alerts sign up links from all
OpenBlock pages.