Making leaf node Conditional mandatory in yang

nikhilagarwal.85 — Mon, 21 Mar 2022 12:23:42 GMT

Hi,

I am trying to make a leaf node as conditional mandatory as explained below.

list top-list {

leaf type {

description "type.";
mandatory true;
type network-type; /// this type has 3 values i.e local/remote/gr-remote

}

leaf node {

description "Node details.";

type leafref {

path /// -- some reference

}

mandatory true;

when "../type = 'local'";

}

Now here, the ask is to have node as mandatory when type is local and optional when type is gr-remote and not allowed when type is local.

I am able to make both local & gr-remote as either mandatory or option via using "when" but not able to make leaf "node" as mandatory when type is "local" and optional when type is "gr-remote".

Any leads on this would be helpful.

Thank in advance.

Regards

Nikhil

Re: Making leaf node Conditional mandatory in yang

Alexander Stevenson — Thu, 31 Mar 2022 20:28:31 GMT

Hi @nikhilagarwal.85,

I see that no YANG experts have commented so I'll make a suggestion. You might want to try the 'refine' statement and/or the 'default' sub-statement as described in these two StackOverflow discussions:

Hope this helps!

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Making leaf node Conditional mandatory in yang

Re: Making leaf node Conditional mandatory in yang