Hello, I am wondering if it is possible to populate a CDT in the Inpu

issamd over 10 years ago

Hello,

I am wondering if it is possible to populate a CDT in the Input tab and then populate one field in that CDT in the Output tab.

For example: Let's say I have a CDT called Employee and I use a query rule to populate the employee name in Input. In output I want to populate Employee.Nickname using an expression. How can I do this?...

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0 elizabeth.epstein over 10 years ago

You can reference Node Inputs as ac!myInputName in the Node Outputs.
So if your Node Input is called Employee, then in Node Outputs you can use =someExpression(ac!Employee.name) and save to just the Nickname field of an Employee type PV.
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0 Ricardo Galvan
Appian Employee
over 10 years ago

Please see the following reference to know the difference between the two tabs:

forum.appian.com/.../Data_Tab.html

This will help you understand the difference in concepts and aid you in the example you have provided
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0 issamd over 10 years ago

I've attached a screenshot of the expression and that it saves into the correct PV. When I run the process it still does not populate the PV in the output.

Also, thank you for that reference, Ricardo. I understand the difference between the two but I can't seem to populate a CDT that I just populated in the same script task.
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0 Terri McCormick
Appian Employee
over 10 years ago

A common mistake I see is populating the inputs at the parent level and the outputs at the individual attribute level. This creates a race condition. You must either populate the entire CDT from ac!myCTD to pv!myCDT (typically on the inputs) or populate the pieces: ac!myCDT.name to pv!myCDT.name which can be on inputs or outputs.
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0 elizabeth.epstein over 10 years ago

Terri is right. If you are *also* saving your input directly to a PV, you can't try to save the outputs to that same PV (or fields within it.)
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0 issamd over 10 years ago

I see, this answers my question, thanks everyone!
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