Make the database service have a Tx interface #539
Description
What
Currently the database services have a interface that allows a single request at a time, creating a db tx each time it is called. Instead you should first need to call a function to start a DB tx before doing any calls.
Why
Makes keeping the DB state consistent easier, often multiple requests are needed and we need to make sure each request stays in sync.
Where
the database service and and users.