Code: How to check if an object exists in the model?

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George C2 asked Aug 7, '19 George C2 commented Aug 8, '19

Code: How to check if an object exists in the model?

Goal: So I would like to check if a specific object with a specific name exists in the current model.

Q: How would I write an IF statement within a process flow custom code to query such a thing?

Current Code:

if(model().find("Operator1").first){
    //Do something
}else{
    //Do something else
}

> Do I need to make the "model().find..." part == #, NULL, or something else?

Software Version:

FlexSim 19.1.0

code model object exist

Answer 1 · 2019-08-07T19:46:31Z

Jacob Gillespie answered Aug 7, '19 George C2 commented Aug 8, '19

Your current code should work fine.

There are only certain situations when you need to use objectexists(). Use it whenever you are using a non dot-syntax command which returns a node. For example:

if(objectexists(node("Operator1", model()))){
    //Do something
}else{
    //Do something else
}

--

If you are asking how to first check if Operator1 exists you can do this:

if(Model.find("Operator1") && Model.find("Operator1").first){
    //Do something
}else{
    //Do something else
}

Or this:

if(Model.find("Operator1")?.first){
    //Do something
}else{
    //Do something else
}

· 1

George C2 commented · Aug 08, 2019 at 11:49 AM

Thanks for the help!

0 ·

Answer 2 · 2019-08-07T19:06:53Z

Aaron C answered Aug 7, '19

Try:
if(objectexists(Model.find("NameOfObject")))
{
// Do Something
}

Answer 3 · 2019-08-07T19:03:52Z

José Antonio MD answered Aug 7, '19

Hello @George C2,

FlexSim has a specific function for that:

objectexists()

Its value will be 1 if it exists in your model and 0 if not..

I hope I've been helpful.

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