How to get a list's content quantity?

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question

Jingyong P asked Jan 07 2021 at 8:50 PM mfrsagfm commented Jun 27 2024 at 4:56 PM

How to get a list's content quantity?

Control List Content.fsmI want to use "Decide" to check a list's content quantity.

when list has 5 or more content, I want to redirect newly arrived tokens to sink till content qty < 5

I tried, but not working.

List("List1").stats.content.value <= 5

Software Version:

FlexSim 21.0.0

flexsim 21.0.0 list content

control-list-content.fsm (29.1 KiB)

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Answer 1 · 2021-01-08T00:23:22Z

David Seo answered Jan 08 2021 at 12:23 AM Jingyong P commented Jan 08 2021 at 5:54 PM

@Jingyong P

You can solve your issue using (List("List1").stats.input.value - List("List1").stats.output.value) < 5 condition. And you should set List1 to global not local.

I attach the model fixed.

control-list-content_FKor.fsm

If you have a question about the model, let me know it.

control-list-content-fkor.fsm (29.5 KiB)

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Answer 2 · 2021-01-07T21:08:36Z

Joerg Vogel answered Jan 07 2021 at 9:08 PM mfrsagfm commented Jun 27 2024 at 4:56 PM

If you want to count the entries of a list, then you get this by

List(“List1”).entries().length

if you want to get the sum of field values, then this is a table query over a list with SUM clause.

· 5

Jingyong P commented · Jan 07 2021 at 9:18 PM

Thank you @Jörg Vogel

In my case, I only need to count the quantity of the tokens that were pushed in minus tokens were pulled out. .

Got the following error messages

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <⾠ascii = -30

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <> ascii = -128

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <ܾ ascii = -100

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <⾠ascii = -30

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <> ascii = -128

Flexscript Error MODEL:/Tools/ProcessFlow/ProcessFlow/Decide>variables/decision invalid character <ݾ ascii = -99

0 ·

Joerg Vogel Jingyong P commented · Jan 08 2021 at 12:56 AM

None of these errors are related to a syntax error of a query. Invalid ascii character is a problem with language settings or code pages. Please ask a new question!

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Jingyong P Joerg Vogel commented · Jan 08 2021 at 5:52 PM

Those error happen only when I set condition in. That's the only change. My pc is in English and all settings are based on US. I have no idea why it shows those error.

List(“List1”).entries().length

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