How to fetch the constant Values using the constant Name?

RE: How to fetch the constant Values using the constant Name?

Eliot Gerson — Mon, 11 Sep 2017 23:16:54 GMT

What is the constant being used for normally? It would be helpful to have a bit more information about your use case.

RE: How to fetch the constant Values using the constant Name?

Mike Schmitt — Mon, 11 Sep 2017 17:49:24 GMT

I assume the plug-in mentioned in the first reply in this thread is the preferred method.

RE: How to fetch the constant Values using the constant Name?

Durgesh — Mon, 11 Sep 2017 17:47:59 GMT

What is the alternate standard function/routine to use instead eval() function?

RE: How to fetch the constant Values using the constant Name?

harrisont606 — Mon, 11 Sep 2017 17:11:23 GMT

If the field is user facing they also risk SAIL injection. Somebody could enter some crazy looping function that crashes the system.

RE: How to fetch the constant Values using the constant Name?

Mike Cichy — Mon, 11 Sep 2017 16:25:37 GMT

DO NOT USE eval() UNDER ANY CIRCUMSTANCES!

It is a hidden function and its use is NOT SUPPORTED. It may change without notice and you will hose your application.

RE: How to fetch the constant Values using the constant Name?

Durgesh — Mon, 11 Sep 2017 15:30:44 GMT

eval("cons!" & "<YOUR_CONSTANT_NAME>") should precisely look for constant only.

RE: How to fetch the constant Values using the constant Name?

Rama Thummala — Mon, 11 Sep 2017 07:32:36 GMT

, Please use below snippet.It would help you.

eval("<YOUR_CONSTANT_NAME>") - >returns constant value.
Please make sure the Constant is available, else will get error at run time.

RE: How to fetch the constant Values using the constant Name?

ashokv — Mon, 11 Sep 2017 07:10:14 GMT

u can try using the code something similar below:

merge(
enumerate(
length(
constant name
)
) + 1,
constant name
)
generate a dummy cdt with the above rule and use it wherever you req.

RE: How to fetch the constant Values using the constant Name?

Mike Schmitt — Fri, 08 Sep 2017 14:58:53 GMT

you could possibly use the eval() function for this too, though as sureshg57 already pointed out, either method presented here will present you maintenance challenges and risk of breaking (for instance, you will have no way of checking whether one of the constant names in the DB doesn't match a real constant, and risk throwing an error).

RE: How to fetch the constant Values using the constant Name?

sureshg57 — Fri, 08 Sep 2017 14:18:57 GMT

This is one plugin you can use. forum.appian.com/.../summary

But I do highly recommend not to use a solution like this if you have any other way of handling you requirement as this can become hard to maintain