Q1. If I want to manually trigger a DB transaction roleback
progrmatically what approach/methods should I use?
Q2. Also if in the transactions I use multiple models, should I start
the transaction by (a) choosing one of the models & going
.transaction do, or (b) use some other generic DB transaction
method (ie no model namc)?
- upload of records from file
- want to try each one re loading into DB, then collect errors in
array for those that fail
- then at end want to:
(a) roll back everything , but also
(b) overall method should NOT raise exception (ie why I want to
trigger rollback without relying on an exception to do this