What are Flask ORM migrations and how do I use them?

What are Flask ORM migrations and how do I use them?

Flask ORM migrations are a way to manage changes to your database schema over time. They allow you to create, modify, and delete database tables and fields in a structured manner.

How do I set up migrations in a Flask project?

You can set up migrations in a Flask project using Flask-Migrate, which is an extension that handles SQLAlchemy database migrations for Flask applications. First, install it using pip, then initialize it in your app.

Can you show me an example of creating a migration?

Sure! After setting up Flask-Migrate, you can create a migration by running flask db migrate -m 'Initial migration'. This will generate a migration script based on your models.

How do I apply the migration to the database?

To apply the migration, run flask db upgrade. This command will apply the changes to your database schema.