language.post_update.php

<?php


/**
 * @file
 * Post update functions for Language module.
 */
use Drupal\Core\Entity\Entity\EntityFormDisplay;

/**
 * Add the 'include_locked' settings to the 'language_select' widget.
 */
function language_post_update_language_select_widget() {
    foreach (EntityFormDisplay::loadMultiple() as $display_form) {
        $content = $display_form->get('content');
        $changed = FALSE;
        foreach (array_keys($content) as $element) {
            if (isset($content[$element]['type']) && $content[$element]['type'] == 'language_select') {
                $content[$element]['settings']['include_locked'] = TRUE;
                $changed = TRUE;
            }
        }
        if ($changed) {
            $display_form->set('content', $content);
            $display_form->save();
        }
    }
}