PageRetrieval.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Wiki\Media;
 
use Generator;
use ilCtrl;
use ILIAS\MediaObjects\OverviewGUI\SubObjectRetrieval;
use ILIAS\Wiki\Page\PageManager;
 
class PageRetrieval implements SubObjectRetrieval
{
    protected array $page_titles_by_id;
 
    public function __construct(
        protected PageManager $page_manager,
        protected ilCtrl $ctrl
    ) {
    }
 
    protected function getPageTitleByID(): array
    {
        if (isset($this->page_titles_by_id)) {
            return $this->page_titles_by_id;
        }
        $this->page_titles_by_id = [];
        foreach ($this->page_manager->getWikiPages() as $page) {
            $this->page_titles_by_id[$page->getId()] = $page->getTitle();
        }
        return $this->page_titles_by_id;
    }
 
    public function getPossibleTypes(): Generator
    {
        yield 'wpg:pg';
    }
 
    public function getAllIDsForType(string $type): Generator
    {
        if ($type !== 'wpg:pg') {
            return;
        }
        yield from array_keys($this->getPageTitleByID());
    }
 
    public function getLinkToSubObject(string $type, int $id): string
    {
        if ($type !== 'wpg:pg') {
            return '';
        }
        return $this->page_manager->getPermaLink($id);
    }
 
    public function getTitleOfSubObject(string $type, int $id): string
    {
        if ($type !== 'wpg:pg') {
            return '';
        }
        return $this->getPageTitleByID()[$id] ?? '';
    }
}