forumsite.php

См. документацию.

<?php
namespace Bitrix\Forum;
 
use Bitrix\Main\Entity;
use Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);

class ForumSiteTable extends \Bitrix\Main\Entity\DataManager
{
    public static function getTableName()
    {
        return 'b_forum2site';
    }

    public static function getMap()
    {
        return array(
            'FORUM_ID' => array(
                'data_type' => 'integer',
                'primary' => true,
                'title' => Loc::getMessage('FORUM_SITE_TABLE_FIELD_FORUM_ID'),
            ),
            'SITE_ID' => array(
                'data_type' => 'string',
                'primary' => true,
                'size' => 2,
                'title' => Loc::getMessage('FORUM_SITE_TABLE_FIELD_SITE_ID'),
            ),
            'PATH2FORUM_MESSAGE' =>  array(
                'data_type' => 'string',
                'title' => Loc::getMessage('FORUM_SITE_TABLE_FIELD_SITE_ID'),
            ),
            'FORUM' => array(
                'data_type' => 'Bitrix\Forum\Forum',
                'reference' => array('=this.FORUM_ID' => 'ref.ID')
            ),
            'SITE' => array(
                'data_type' => 'Bitrix\Main\Site',
                'reference' => array('=this.SITE_ID' => 'ref.LID'),
            ),
        );
    }
}