What are Django migrations and how do I use them?

What are Django migrations and how do I use them?

Django migrations are a way to propagate changes you make to your models (like adding a field) into your database schema. You can create migrations using the command python manage.py makemigrations and apply them with python manage.py migrate. Would you like to know more about a specific aspect?

How do I create a new migration for an existing model?

To create a new migration for an existing model, modify the model in your models.py file, then run python manage.py makemigrations. This will generate a new migration file that reflects your changes.

Can I roll back a migration if I make a mistake?

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 it was in at that migration.

What should I do if there are conflicts in migrations?

If there are conflicts, you can resolve them by manually editing the migration files or using the --merge option when running makemigrations. It's important to ensure that the final migration reflects all changes accurately.