gw-min-and-max-character-limit.php: Added support to run validation only when the field has a value.

[malayladu]

Context

⛑️ Ticket(s): https://secure.helpscout.net/conversation/2867998139/78938

Summary

Min Max character limit validation make sense when the field has a value. If we want to make sure field has a value, that can be handled through field Required rules.

So, this we can do min max character limit validation only for the filed that has a value.

[github-actions]

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[saifsultanc]

Working well!

This does the job as David emphasized, "I think we can ignore the required status and only apply our validation if the value is not empty."

However, I do wonder if we can make it more versatile by adding a boolean flag, say:

'ignore_if_empty' => true

Maybe a future improvement scenario for the snippet.

For now, LGTM!

[spivurno]

@saifsultanc Love where your head is at!

But I think this is probably best without an additional parameter since this is arguably how it should have been working all along. If this were a plugin, we'd need to be more considerate of backwards compatibility for folks who may have been using this min/max validation (without having marked the field as required) but fortunately, it's a snippet. 😄

[saifsultanc]

@malayladu S&M this. Thanks! 🙌