What are the best practices for managing Flask migrations?

What are the best practices for managing Flask migrations?

When managing Flask migrations, it's important to follow these best practices: 1. Use version control for your migration files. 2. Keep migrations small and focused. 3. Test migrations in a staging environment before applying them in production. 4. Regularly clean up old migration files. 5. Document any changes made in migrations.

Why is it important to keep migrations small?

Keeping migrations small helps to minimize the risk of errors and makes it easier to troubleshoot issues. Smaller migrations are also easier to review and understand.

How can I test migrations in a staging environment?

To test migrations in a staging environment, you can create a copy of your production database and apply the migrations there first. This allows you to catch any potential issues before they affect your live application.

What should I do if a migration fails?

If a migration fails, you should first check the error message for clues. You can then roll back the migration using flask db downgrade and fix the issue before trying to apply it again.