What are Django migrations and how do versioning work?

What are Django migrations and how do versioning work?

Django migrations are a way to propagate changes you make to your models (like adding a field) into your database schema. Versioning in migrations helps track changes over time.

How do I create a new migration in Django?

You can create a new migration by running the command python manage.py makemigrations. This will generate a new migration file based on the changes in your models.

Can I roll back a migration if something goes wrong?

Yes, you can roll back a migration using the command python manage.py migrate app_name migration_name. This will revert your database to the state defined by that migration.

What happens if I delete a migration file?

If you delete a migration file, it can cause inconsistencies between your database schema and your models. It's best to handle migrations carefully.