Kirby 3 uuid

Readme.md

You would need to install https://github.com/ramsey/uuid to make it work. Depending on the use case it could also make sense to implement those as traits.

<?php

class ArticlePage extends UuidPage
{
  
}

<?php

class BlogPage extends UuidParentPage
{
  
}

UuidPage.php

<?php

use Kirby\Exception\NotFoundException;
use Kirby\Cms\Page;
use Kirby\Toolkit\Str;

class UuidPage extends Page
{
    /**
     * Changes the slug/uid of the page
     *
     * @param string $slug
     * @param string $languageCode
     * @return Page
     */
    public function changeSlug(string $slug, string $languageCode = null): Page
    {
        // always sanitize the slug
        $slug = Str::slug($slug);

        if ($language = $this->kirby()->language($languageCode)) {
            if (!$language) {
                throw new NotFoundException('The language: "' . $languageCode . '" does not exist');
            }
        }

        return $this->commit('changeSlug', [$this, $slug, $languageCode], function ($page, $slug, $languageCode) {
            // remove the slug if it's the same as the folder name
            if ($slug === $page->uid()) {
                $slug = null;
            }

            return $page->save(['slug' => $slug], $languageCode);
        });
    }
}

UuidParentPage.php

<?php

use Kirby\Exception\DuplicateException;
use Kirby\Cms\Page;
use Kirby\Toolkit\Str;
use Ramsey\Uuid\Uuid;

class UuidParentPage extends Page
{
    /**
     * Creates and stores a new page
     *
     * @param array $props
     * @return Page
     */
    public static function create(array $props): Page
    {
        kirby()->extend([
            'hooks' => [
                'page.create:before' => function (Page $page) {
                    $languageCode = $page->kirby()->defaultLanguage()->code();
                    $children = $page->parentModel()->childrenAndDrafts();
                    $slug = $page->content()->slug();

                    foreach ($children as $p) {
                        if ($p->uid() == $slug) {
                            throw new DuplicateException([
                                'key'  => 'page.duplicate',
                                'data' => ['slug' => $slug]
                            ]);
                        }

                        if ($p->slug() == $slug) {
                            throw new DuplicateException([
                                'key'  => 'page.duplicate',
                                'data' => ['slug' => $slug]
                            ]);
                        }

                        if ($p->slug($languageCode) == $slug) {
                            throw new DuplicateException([
                                'key'  => 'page.duplicate',
                                'data' => ['slug' => $slug]
                            ]);
                        }
                    }
                }
            ]
        ]);

        $slug = Str::slug($props['slug'] ?? $props['content']['title'] ?? null);

        $props['content']['slug'] = $slug;
        $props['slug'] = (string) Uuid::uuid4();

        return parent::create($props);
    }
}