How do I implement rollback in Flask ORM?

How do I implement rollback in Flask ORM?

To implement rollback in Flask ORM, you can use the db.session.rollback() method. This will revert any changes made during the current session.

Can you give me an example of when I would need to use rollback?

Sure! If you are inserting data into the database and an error occurs, using rollback will undo the insert operation to maintain data integrity.

What happens if I don't use rollback?

If you don't use rollback, any changes made during the session will be committed, potentially leading to inconsistent or corrupt data.

Is there a way to automatically rollback on error?

Yes, you can use a try-except block to catch exceptions and call db.session.rollback() in the except block to handle errors gracefully.