I would like to propose the ability to switch a rules to only be evaluated on demand, and having the result written back to the db for performance considerations.
This could be very useful as an alternative to using integrator jobs, then these rules would be able to do complex calculations, without paying the price at input time.
I see this at a supplement to optimize user experience by reducing unintended waiting for update of UI.
I thinking this as a flag set on the rules, telling the system only to evaluate on demand. To be able to handle the "on-demand" need, I think an integrator call is needed, and maybe a nice little action call in the new button action functionality to round it of.
