What is a transaction rollback in GORM?

Can you explain what a transaction rollback is in GORM?

Sure! A transaction rollback in GORM is a way to revert changes made during a transaction if an error occurs.

How do I implement a rollback in my GORM code?

You can use the db.Transaction method to start a transaction and call tx.Rollback() if you encounter an error.

What happens if I don't rollback after an error?

If you don't rollback, the changes made during the transaction will be committed, which may lead to inconsistent data.

Can you give me a code example of using rollback in GORM?

Certainly! Here's a simple example:

err := db.Transaction(func(tx *gorm.DB) error {
    if err := tx.Create(&user).Error; err != nil {
        return err // This will trigger a rollback
    }
    return nil // This will commit the transaction
})