DataService.php

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<?php
 
namespace Elgg\Comments;
 
class DataService {
 
    protected $counts = [];
 
    public function setCommentsCount(int $guid, int $num): void {
        $this->counts[$guid] = $num;
    }
 
    public function getCommentsCount(\ElggEntity $entity): int {
        $guid = $entity->guid;
        if (!isset($this->counts[$guid])) {
            $this->counts[$guid] = elgg_count_entities([
                'type' => 'object',
                'subtype' => 'comment',
                'container_guid' => $entity->guid,
                'distinct' => false,
            ]);
        }
        
        return $this->counts[$guid];
    }
 
    public function filterGuids(array $guids): array {
        foreach ($guids as $key => $guid) {
            if (!isset($this->counts[$guid])) {
                continue;
            }
            
            unset($guids[$key]);
        }
        
        return array_values($guids);
    }
 
    public static function instance(): self {
        static $inst;
        if ($inst === null) {
            $inst = new self();
        }
        
        return $inst;
    }
}