What are advanced Django signals and how can I use them?

What are advanced Django signals and how can I use them?

Advanced Django signals allow you to create custom signals that can be emitted and listened to throughout your application. They help in decoupling your code and making it more modular.

Can you give me an example of a custom signal?

Sure! You can create a custom signal like this: from django.dispatch import Signal, receiver. Then define your signal: my_signal = Signal(). You can connect it to a receiver function that handles the signal.

How do I connect the signal to a model?

You can connect the signal to a model by using the post_save signal. For example, you can connect it like this: post_save.connect(my_signal, sender=MyModel).

What are some common use cases for signals?

Common use cases include sending notifications, updating related models, or logging changes when a model instance is saved.