Updating Schedules

Because sometimes we might need to update our SLA Schedules over time – without invalidating existing SLA calculations, sla-timer allows us to update the SLA with a new SLASchedule that will commence after the effectiveFrom date provided.

// Create our initial schedule
$sla = SLA::fromSchedule(
    SLASchedule::create()->from('09:00:00')->to('09:01:00')
        ->everyDay()
);

// Add our new superseded schedule, only starting after 27 July 2022
$sla->addSchedule(
    SLASchedule::create()->effectiveFrom('27-07-2022')
        ->from('09:00:00')->to('09:00:30')->onWeekdays()->and()
        ->from('09:00:00')->to('09:00:10')->onWeekends()
);

Then if we run our duration method across both our old schedule and our new schedule.

// Given the time now is 14:00:00 31-07-2022
$sla->duration('08:35:40 25-07-2022')->totalSeconds; // 230

Tables	Old Schedule	New Schedule
25^th July	60s	30s
26^th July	60s	30s
27^th July	60s	30s
28^th July	60s	30s
29^th July	60s	30s
30^th July	60s	10s
31^st July	60s	10s
Total	120s	110s
Total	230s

Updating Schedules #

Updating Schedules