PageOwnerService.php

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<?php
 
namespace Elgg\Page;
 
use Elgg\Database\EntityTable;
use Elgg\EventsService;
use Elgg\Exceptions\RangeException;
use Elgg\Http\Request;
use Elgg\Invoker;
use Elgg\Router\Route;
 
class PageOwnerService {
 
    protected int $page_owner_guid = 0;
    
    public function __construct(
        protected Request $request,
        protected EntityTable $entity_table,
        protected EventsService $events,
        protected Invoker $invoker
    ) {
        $this->page_owner_guid = $this->detectPageOwnerFromRoute();
    }
    
    protected function detectPageOwnerFromRoute(): int {
        $route = $this->request->getRoute();
        if (!$route instanceof Route) {
            return 0;
        }
        
        $page_owner = $route->resolvePageOwner();
        return $page_owner instanceof \ElggEntity ? $page_owner->guid : 0;
    }
    
    public function setPageOwnerGuid(int $guid = 0): void {
        if ($guid < 0) {
            throw new RangeException(__METHOD__ . ' requires a positive integer.');
        }
        
        $this->page_owner_guid = $guid;
    }
    
    public function getPageOwnerGuid(): int {
        return $this->page_owner_guid;
    }
    
    public function getPageOwnerEntity(): ?\ElggEntity {
        if ($this->getPageOwnerGuid() < 1) {
            return null;
        }
 
        return $this->entity_table->get($this->getPageOwnerGuid());
    }
}