What are the differences between Django signals and hooks?

What are the differences between Django signals and hooks?

Django signals are a way to allow decoupled applications to get notified when certain actions occur elsewhere in the application. Hooks, on the other hand, are specific points in the code where you can insert your own functionality.

Can you give me an example of when to use signals?

Sure! You might use signals to automatically create a user profile when a new user is created. This way, you can keep your user creation logic separate from the profile creation logic.

And what about hooks? When would I use them?

Hooks are useful when you want to extend or modify the behavior of a function without changing its code. For example, you might use a hook to add custom validation to a form submission.

Are there any performance considerations I should be aware of?

Yes, signals can introduce some overhead since they involve additional function calls. It's important to use them judiciously to avoid performance issues.