class.ilECSCommunitiesCache.php

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<?php
include_once './Services/WebServices/ECS/classes/class.ilECSCommunityCache.php';

class ilECSCommunitiesCache
{
    private static $instance = null;

    private $communities = array();

    protected function __construct()
    {
        $this->read();
    }

    public static function getInstance()
    {
        if (isset(self::$instance)) {
            return self::$instance;
        }
        return self::$instance = new ilECSCommunitiesCache();
    }

    public static function delete($a_server_id)
    {
        global $ilDB;

        $query = 'DELETE FROM ecs_community ' .
            'WHERE sid = ' . $ilDB->quote($a_server_id, 'integer');
        $ilDB->manipulate($query);
    }
    
    public function getCommunities()
    {
        return (array) $this->communities;
    }

    public function lookupOwnId($a_server_id, $a_mid)
    {
        foreach ($this->getCommunities() as $com) {
            if ($com->getServerId() == $a_server_id) {
                if (in_array($a_mid, $com->getMids())) {
                    return $com->getOwnId();
                }
            }
        }
        return 0;
    }

    public function lookupTitle($a_server_id, $a_mid)
    {
        foreach ($this->getCommunities() as $com) {
            if ($com->getServerId() == $a_server_id) {
                if (in_array($a_mid, $com->getMids())) {
                    return $com->getCommunityName();
                }
            }
        }
        return '';
    }

    private function read()
    {
        global $ilDB;

        $query = 'SELECT sid,cid FROM ecs_community ';
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $this->communities[] = ilECSCommunityCache::getInstance($row->sid, $row->cid);
        }
        return true;
    }
}