CODEWITHSUNDEEP
djangocronrabbitmqcelery
Ryan Shocker
Ryan Shocker

Reputation: 703

Django cron-job for user-specified times

I am wanting to send notifications based on a user-specified time. IE, in google calendar, I can receive a text message when my task time is hit.

Is the solution to this to run a cron job, have it execute every minute and scan which users have a time equaling the current time?

Upvotes: 0

Views: 275

Answers (1)

Geotob
Geotob

Reputation: 2945

Since you tagged your question with celery, I assume you have celery running. You could use the eta kwarg to apply_async() to schedule a task to run at a specific time, see here:

http://docs.celeryproject.org/en/latest/userguide/calling.html#eta-and-countdown

If you need to use a cron job, I would not check if notification_time == current_time, but rather track unsent notifications with a boolean is_sent field on the model and check for notification_time <= current_time and not is_sent. This seems to be slightly less error prone. You could also add some form of check to prevent mass-sending notifications in case your system goes down for a few hours.

Upvotes: 1

Related Questions