Problem:

I want some code to be executed after every change in the database in a specific table. Meaning, if an entry was inserted, removed or updated.

I found this >https://stackoverflow.com/a/15712353/2813152 using django signals. Is this the recommended way for this?

Can I use it for any changes at this table? Not just when an instance is saved?

Can the code run async in the background?

Solution:

Django signals are not asynchronous. But you can trigger a background job via a signal with e.g. >celery if you have code that takes some more time to complete.

As per >Django documentation, the django.db.models.signals.post_save signal has an argument created which you can use to find out if an object has been added or changed.

Get an overview of all >built-in model signals in Django.

Answered by: >Marco

Credit: >Stackoverflow

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