I see but I've done some database work back in the days. If you keep business
logic on application side you often need reading from database too in your
write transactions for enforcing rules etc.
I think something like this is a possible use case:
db.startTransaction(t):
read status of some (previously committed) business document,
if everything checks:
confirm money (business) transaction
commit
else:
rollback
show error
Run
I mean, there are times you may not know if you will commit or rollback before
starting transaction. Thats what I had in mind.
