Concatenate multiple config options to display in one blueprint field

1

Is it possible to concatenate multiple config options to display in one blueprint field?

I have the options mainCountries and moreCountries in my config, as I need to be able to display them separately.
In a blueprint, I now need to show them as options of one select field.
Is that feasible?

The following example doesn’t work, obviously, but is shown to illustrate the question:

  country:
    type: select
    options:
      type: query
      query: [ kirby.option('mainCountries'), kirby.option('moreCountries') ]
      text: "{{ item.value }}"
      value: "{{ item.key }}"
2

I’d create a custom method that returns all values from those config options.

3

Many thanks for pointing me in the right direction, Sonja.
Worked like a charm.

For anyone wondering about the same or a similar thing, here’s the/my solution:

Create a new site method as descripted in the docs.

Put this in your method’s/plugin’s index.php:

<?php
Kirby::plugin('YOURMONICKER/YOURPLUGINNAME', [
    'siteMethods' => [
        'YOURMETHODNAME' => function ($options) {
            $return = [];
            foreach ($options as $option):
                $items = option($option);
                foreach ($items as $key => $value):
                    $return[$key] = $value;
                endforeach;
            endforeach;
            return $return;
        }
    ]
]);

In your blueprint use it like this:

fieldID:
  type: select
  options:
    type: query
    query: site.YOURMETHODNAME([ 'oneOption', 'anotherOption' ])
    text: "{{ item.value }}"
    value: "{{ item.key }}"