What are some examples of Django migration commands?

What are some examples of Django migration commands?

Django provides several migration commands. Here are a few examples:

1. python manage.py makemigrations - Creates new migrations based on the changes you made to your models.
2. python manage.py migrate - Applies the migrations to your database.
3. python manage.py showmigrations - Lists all migrations and their applied status.
4. python manage.py sqlmigrate <app_name> <migration_name> - Shows the SQL statements for a specific migration.

Can you explain what makemigrations does?

Sure! The makemigrations command scans your models for changes and creates migration files that describe those changes. This allows Django to keep track of the database schema.

What happens if I forget to run makemigrations?

If you forget to run makemigrations, any changes you made to your models won't be reflected in the database. You'll need to run it before applying migrations to ensure your database schema is up to date.

How can I revert a migration?

You can revert a migration by using the command python manage.py migrate <app_name> <migration_name>, where <migration_name> is the name of the migration you want to revert to. This will undo any migrations applied after that point.