Dynamically created arrays

RouterOS Scripting
1

Hi Folks
Battling with a 2D array creation. I want to store some user detail against a device mac as the Key (In my example below 1, 2 & 3). If I manually create the structure I can change each field individually. If I create them dynamically in a loop with the “same” commands, changing one field updates all 3 fields on that level.

Any suggestions ?

:local array ({}) ;
:set ( array → “1” ) ({}) ;
:set ( array → “1” → “test” ) false ;
:set ( array → “2” ) ({}) ;
:set ( array → “2” → “test” ) false ;
:set ( array → “3” ) ({}) ;
:set ( array → “3” → “test” ) false ;

:log info $array ;
:set (array → “2” → “test” ) true ;
:log info $array ;

Result :
1=test=false;2=test=false;3=test=false
1=test=false;2=test=true;3=test=false

:local array2 ({}) ;
:local list {“1”; “2”; “3”} ;
:foreach a in=$list do={
:set ( $array2 → $a ) ({}) ;
:set ( $array2 → $a → “test” ) false ;
} ;

:log info $array2 ;
:set (array2 → “2” → “test” ) true ;
:log info $array2 ;

Result :
1=test=false;2=test=false;3=test=false
1=test=true;2=test=true;3=test=true

2

To use Key=Value array, try this:
Use {} around code so it can run directly from terminal, and change log to put to get info on screen.

{
:local array ({})
:local list {"1"; "2"; "3"}
:foreach a in=$list do={
	:set ( $array -> "$a" ) ({})
	:set ( $array -> "$a" ) false
}

:put $array
:set ($array -> "2") true
:put $array 
}

Result:

1=false;2=false;3=false
1=false;2=true;3=false

Some script info:
Use code tags when posting code in the forum. Better to read and tabs in front will be seen.</>
You do not need semicolon after all lines, only between commands on same line ;
From the Wiki, MT stats that $ should be used when set a variable. I do see it works without, so not 100% sure whats the best way: https://wiki.mikrotik.com/wiki/Manual:Scripting#Operations_with_Arrays

3

Thanks Jotne
Making those changes causes the key to become lost. I’d ideally like to retain the key functionality.
My ultimate goal is a dynamic array like this :
maclist={A1:B1:C1:D1:E1:F1={ firstseen=April202020; lastseen=April252020; throttled=false }; A2:B2:C2:D2:E2:F2={firstseen=April252020; lastseen=April262020; throttled=true }} etc
Creating the array one mac at a time works from the DHCP script, as well updating it.
Now I’d like to create the global array from a script using an address list as the source. The dates will be updated from the DHCP script and the throttle status from a scheduled script.
The array commands and the looping dont like each other. Thank you for the constructive comments on scripting. Rgds Puffer

4

Create multiple array with mac as ID for all. One array has first seen, one array has last seen etc.

Some like this

maclist {A1:B1:C1:D1:E1:F1; A2:B2:C2:D2:E2:F2} 
maclist_firstseen {A1:B1:C1:D1:E1:F1=April202020;A2:B2:C2:D2:E2:F2=April252020}
maclist_lastseen {A1:B1:C1:D1:E1:F1=April252020;A2:B2:C2:D2:E2:F2=April262020}
maclist_throttled {A1:B1:C1:D1:E1:F1=false; A2:B2:C2:D2:E2:F2=true}