How to access a property from a collection in business rule

Question

Question

Marykutty George · Dec 6, 2023

Hi Community,

We are trying to filter message created using custom xml class in a business rule.

HL7 ORU Result messages are converted to custom xml messages with a list properties .Result ORU converted to OrderResultMsg , which contains property Orders as list of Order which contains ResultStatus . Please see below the class extract. We are trying to access the ResultStatus property to filter non-final results via business rule.

Class CDM.OrderResultMsg Extends Ens.Request
{

Property MSHSendApplication As %String;

Property MSHSendFacility As %String;
<<Code truncated>>

Property Orders As list Of CDM.Order;

<<Code truncated>>

}

Class CDM.Order Extends (%SerialObject, %XML.Adaptor)
{

Property OrderControl As %String;

Property PlacerOrderNumber As %String;

Property FillerOrderNumber As %String;

Property ResultStatus As %String;

<<code truncated>>

We can get collection directly in code using ..Orders.GetAt(1).ResultStatus

In rule we tried to use Document.Orders. but haven't find a way to access the list property.

Thanks,

Mary

Product version: IRIS 2021.1

Discussion (5)2

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Enrico Parisi · Dec 7, 2023

I don't think you can implement it in a messaging routing rule.

Personally I would implement it using code, writing a Business Process class.

Another option is using a BPL business process, but I'm not a fan of BPL. But probably that's just me. 😊

Enrico

0 0

score 0 · Answer 1 · 2023-12-06T09:34:08-05:00

Is Document an instance of CDM.OrderResultMsg?

If so, then Document.Orders.GetAt(1).ResultStatus should work, if not, what error you get? What is assigned to Document?

Enrico

score 0 · Answer 2 · 2023-12-06T09:58:40-05:00

Marykutty George · Dec 6, 2023

@Enrico Parisi , It is the document variable which represents the message object from rule editor :

0 0

score 0 · Answer 3 · 2023-12-06T11:57:21-05:00

If you type in "Document.Orders.GetAt(1).ResultStatus", does it work?

If not, what error do you get?

Enrico

P.S.: what type of rule are you using?

score 0 · Answer 4 · 2023-12-07T06:04:06-05:00

@Enrico Parisi We are using generic message routing rule.

Using the GetAt call is giving Invalid binary operator error.

Also as we could have multiple orders - result sets in the result message we will need a way to loop in rule , which I am not sure is possible to implement in rules.