How can I ensure data integrity during Rails migrations?
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How can I ensure data integrity during Rails migrations?
To ensure data integrity during Rails migrations, you can use transactions, validate data before migration, and back up your database.
What are transactions in Rails migrations?
Transactions in Rails migrations allow you to group multiple database operations so that they either all succeed or all fail, maintaining data integrity.
Can you give me an example of using transactions?
Sure! You can wrap your migration code in a ActiveRecord::Base.transaction do ... end block to ensure all changes are committed together.
What should I do if a migration fails?
If a migration fails, you should roll back the transaction to revert any changes made during the migration.
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