tag.php

<?php
 
namespace Bitrix\Socialnetwork\Component\WorkgroupList;
 
use Bitrix\Main\Entity\Query;
use Bitrix\Socialnetwork\WorkgroupTagTable;
 
class Tag
{
    public static function fillTags(array $params = []): array
    {
        $result = [];
 
        if (
            !isset($params['groupIdList'])
            || !is_array($params['groupIdList'])
        )
        {
            return $result;
        }
 
        $groupIdList = Util::filterNumericIdList($params['groupIdList']);
        if (empty($groupIdList))
        {
            return $result;
        }
 
        $query = new Query(WorkgroupTagTable::getEntity());
        $records = $query
            ->setSelect([
                'GROUP_ID',
                'NAME',
            ])
            ->whereIn('GROUP_ID', $groupIdList)
            ->exec()->fetchCollection();
 
        foreach ($records as $record)
        {
            $tag = (string)$record->get('NAME');
            $groupId = (int)$record->get('GROUP_ID');
 
            if (!isset($result[$groupId]))
            {
                $result[$groupId] = [];
            }
 
            $result[$groupId][] = $tag;
        }
 
        return $result;
    }
}