How to transfer the localvalue of one interface to another interface?

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 01 Mar 2022 09:14:41 GMT

i have it at my another post, you have to distinguish between whether parents to child and child to parents

RE: How to transfer the localvalue of one interface to another interface?

Stewart Burchell — Tue, 01 Mar 2022 09:10:52 GMT

(sorry, my reply was to scotto0004)

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 01 Mar 2022 09:09:43 GMT

i know how to do it already, thanks

RE: How to transfer the localvalue of one interface to another interface?

Stewart Burchell — Tue, 01 Mar 2022 09:07:37 GMT

Perhaps if you posted your code (and details of the error you're experiencing) we might have a better understanding of your scenario.

RE: How to transfer the localvalue of one interface to another interface?

scotto0004 — Mon, 28 Feb 2022 18:40:18 GMT

Can you clarify where this goes in the code? I am faced with the same issue and ive tried this but I get an error no matter where I put the code you gave.

RE: How to transfer the localvalue of one interface to another interface?

Mike Schmitt — Wed, 01 Dec 2021 15:54:42 GMT

I defer to the details in Stewart's answer; but i'll simply reiterate that this isn't really how variables work in Appian-internal context. There isn't really a "transfer a variable" functionality and I can't quite tell what normal Appian use case you're even trying to get at.

RE: How to transfer the localvalue of one interface to another interface?

Stewart Burchell — Wed, 01 Dec 2021 12:30:35 GMT

Whilst Appian is Java under the hood, you need to be aware of how data is passed between different type of Appian object.

For User Interface objects there is a single variable that is defined somewhere (it might be a local! variable or might be a process variable) and you pass references to that variable between user interface objects using rule inputs. Think of rule inputs as "pointers" (in Java terminology). They don't contain the value, the contain reference to a value.

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Wed, 01 Dec 2021 03:53:24 GMT

simply, how to make it like java be able transfer a variables belongs to one class to any class?

RE: How to transfer the localvalue of one interface to another interface?

Mike Schmitt — Tue, 30 Nov 2021 14:43:46 GMT

[quote userid="70042" url="~/discussions/f/new-to-appian/22631/how-to-transfer-the-localvalue-of-one-interface-to-another-interface/88470#88470"]let ri!value be retrieved from previous interface then passed to second interface?[/quote]

Can you clarify what you mean by terms like "previous interface" and "second interface"? This is not normal terminology in terms of Appian interfaces - for nested interfaces we refer to them as parent/child. For interfaces used in sequential steps (separate user input task nodes) of a process model, we would refer to them in context of their task instances (i.e. "pass data from one task to the subsequent task", etc). I honestly can't tell which (if either) of these you might be referring to here, and you haven't provided a whole lot of detail for us to judge by.

RE: How to transfer the localvalue of one interface to another interface?

gayathris111098 — Tue, 30 Nov 2021 10:52:44 GMT

/*parent Interface*/

rule!childInterface(
username:ri!username
)

/*child interface - Create a rule input with name username*/
a!buttonWidget(
/*your code*/
saveInto:a!save(target:ri!username,value:"SAAAAM")
)

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:50:41 GMT

But if i create ri!case at second interface how can i make sure it is not null, any interface create ri!value is null automatically right?

RE: How to transfer the localvalue of one interface to another interface?

gayathris111098 — Tue, 30 Nov 2021 10:48:43 GMT

You will likely need to map the rule inputs together from the child interface to the parent. For example, suppose you have a rule input for ri!case on the child interface. You will need to create a second rule input to match that on the parent interface and map them together like this:

rule!ChildInterface(case: ri!case)

Then, any changes you make in the child interface will also be saved to the parent.

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:48:24 GMT

for example the first interface fill a!save(target:ri!username,value:"SAAAAM"), then the second interface can retrieve like rule!interface1().username, is this ok?

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:45:33 GMT

how to let ri!value be retrieved from previous interface then passed to second interface?

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:44:39 GMT

but how to let ri!value get retrieve from another interface? I tried lots of times

RE: How to transfer the localvalue of one interface to another interface?

gayathris111098 — Tue, 30 Nov 2021 10:43:40 GMT

i meant ri!value as interface value. My bad!

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:42:48 GMT

I never see interface value before only ri!value and local!value

RE: How to transfer the localvalue of one interface to another interface?

immortalvirgil — Tue, 30 Nov 2021 10:31:43 GMT

it would be best if you give a example

RE: How to transfer the localvalue of one interface to another interface?

gayathris111098 — Tue, 30 Nov 2021 10:29:25 GMT

You should consider changing the local variable to an interface variable. Local variables value can't be passed.