Preprocess field contents before rendering QR?

[Synchro]

I have a field that contains an identifier string, but not a whole URL. I'd like to be able to generate the full URL on the fly from the field, so if my field contains abc123, I'd like to be able to build it into a URL like https://example.com/qr/abc123. Is there some way to dynamically alter the field value before it gets rendered, via a closure or something?

[Kristories]

Yes, you can use computed field :

Qrcode::make('URL', function () {

    return url($this->string_column);
    // http://localhost.test/goto/{value}

    // or

    return 'https://example.com/qr/' . $this->string_column;
    // https://example.com/qr/{value}

}),

[Synchro]

Perfect, thanks