Thread: I'm Having Trouble Storing User-Defined Functions
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Old July 13th, 2022, 02:26 PM
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Dan Korn Dan Korn is offline
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Default Re: Storing User-Defined Functions

Quote:
Originally Posted by Dmiller35 View Post
Am I just not using this functionality correctly?
Well, I don't know. How are you using it? You haven't posted the rule that's calling it.

My guess is that your .js file is fine, but that you're not calling the function correctly in your rule, or at least not capturing its return value and using it in your rule correctly.

I assume your rule would do something like this:
Code:
return Presets.LBLNUM();
which would capture the return value of the function, i.e. the "LBLNMBR" field value, and return it from your rule.

Or, more realistically, something like this:
Code:
var lablnum = Presets.LBLNUM();
// Some code to do a calculation with lablnum and return something.
//etc.
If you're just doing this in your rule and nothing else:
Code:
Presets.LBLNUM();
Then you're calling the Presets.LBLNUM function, but throwing away its return value, and your rule isn't returning anything.

It would be the same if your rule just did this:
Code:
Int(Field("LBLNMBR"))
instead of this:
Code:
return Int(Field("LBLNMBR"))
The upshot here is that you're defining a custom function in your .js file, but you still need to call it and use the return value in a rule, which also has to return something.

(Though that might not always be true, if your .js file just does something like setting a property such as FusionPro.Composition.repeatRecordCount, or something else that might be called in a context like OnRecordStart. But generally, your custom function is going to be returning a value to do something with.)
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Dan Korn
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Last edited by Dan Korn; July 13th, 2022 at 02:33 PM..
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