What is the best practice for using transactions in Mere Mortals? I read the information on transactions in the developer guide, and I tried implementing it before with some issues. I don't recall exactly the problem, but I know that I was having problems with it saving the children before when I tried using it. I had two tables (a parent and a child). I had the parent basically instantiating the child like in the doc. I had AutoSaveOnParentSaved set, and I remember an error being thrown this way.

I am at the stage of having to use this scenario again, and I would like to wrap these into a transaction. Basically I am reading in information from a file that contains check payment information. The header contains the total amount of each line item. The line items detail how the check was split. I am reading this information into two tables. I want it to be a transaction, so if it fails everything will rollback. I would like suggestions as to how I should implement this using business objects from a best practice standpoint.