DataMapper ORM v1.8.2

[eluser]WanWizard[/eluser]
Transactions in Datamapper are indeed object based.

If you want to encapsulate multiple Datamapper operations, your suggestion is the way to go.

You have to check though how your database connections (dbparms) are configured, because you need all objects to re-use $this-db, and not have their own connection to the database. By default though, $this->db is re-used.