where and how to use "Async business rules"

[Kishore8]

How to use Async business rules, i don't know any thing bout it, plse help me

can please explain clearly.

[Kishore8]

Hi,

i would like to know ,

in which kind of situations we will use that, and where will we use that, how will we use that.

can you please provide code , for my understanding

[The SN Nerd]

There are plenty of OOB examples with code in the system.

Search for Business Rules where 'When' is "async".

I will provide one code example: Resolved all child incidents upon closure

When

Async

Update

True

Condition

current.active.changesTo('false');

Script

var incident = new GlideRecord("incident");
   incident.addActiveQuery();
   incident.addQuery("parent_incident", current.sys_id);
   incident.addQuery("incident_state", "!=", IncidentState.RESOLVED);
   incident.query();
   var msg = "";
   while (incident.next()) {
   gs.print("Incident " + incident.number + ' resolved based on resolution of Parent Incident ' + current.number);
   incident.incident_state = IncidentState.RESOLVED;
   if (incident.close_notes.nil()) {
   msg = "Close notes copied from Parent Incident";
   if (current.close_notes.toString().indexOf(msg) == 0)
   incident.close_notes = current.close_notes;
   else
   incident.close_notes = msg + ": " + current.close_notes;
   }
   incident.close_code = current.close_code;
   msg = "Resolved based on resolution of Parent Incident.";
   if (current.comments.toString().indexOf(msg) == 0)
   incident.comments = current.comments;
   else
   incident.comments = msg + " " + current.comments;
   incident.work_notes = current.work_notes;
   incident.update();
   }

[ramak]

Hi Paul, looking at the condition in the above BR it wouldn't work; since the 'previous' object is not accessible in an ASYNC BR, changes()/ changesTo()/ changesFrom() also wouldn't work...so if the script demands either of the above methods its better to change it to an AFTER business rule.

Cheers

Suhas

[The SN Nerd]

I see your logic there, but I all current methods work in async business rules (changes()/ changesTo()/ changesFrom()).

It is only previous that is not in scope.

I have tested myself with changes and changesFrom.

[ramak]

Ahh interesting. When I was going through some community threads on the same, found this one :

Why is the Condition Builder Hidden on async BR's?

So in a way it made sense as its ASYNC, it wouldn't have access to those 3 changes methods. Also this could be reason why you don't have access to 'Filter conditions' as S-Now had to change the choice-list fields to remove these methods 'changes/changesTo/changesFrom' from the drop down. (not much info regarding this in wiki or product doc)

But if it works, then I need to do some more work at my end to change the AFTER BR's to ASYNC

Cheers

Suhas