How do I perform data migration in Django?

How do I perform data migration in Django?

To perform data migration in Django, you can use the makemigrations and migrate commands. First, make changes to your models, then run python manage.py makemigrations to create migration files. Finally, apply the migrations with python manage.py migrate.

What if I need to migrate data from one model to another?

You can create a custom migration file where you define the data migration logic. Use the RunPython operation to write a function that transfers data from the old model to the new one.

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 to the specified migration.

Are there any best practices for data migration?

Yes, always back up your data before migrating, test migrations in a staging environment, and keep migrations small and focused.