In form1 user is presented with a list of dates worked. He can chose to add a new date or edit an existing date at which point form2 (or page2) appears allowing entering values for that date. When done with form2 user can choose to save or cancel changes made. This is not a problem. It can be handled by buffering data tables and either commiting or rolling back.

Problem is, I would like to also allow user to change many dates in one session and then either commit or cancel changes made to all dates including the ones just added.

I believe this can be handled by transactions within a transaction but I don;t know how to do it. I am using Codemine framework. All help is appreciated.

TIA,

Alex