class.ilObjQuestionPoolAccess.php

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<?php

include_once "./Modules/Test/classes/inc.AssessmentConstants.php";

class ilObjQuestionPoolAccess extends ilObjectAccess
{
    public static function _getCommands(): array
    {
        $commands = array(
            array("permission" => "write", "cmd" => "questions", "lang_var" => "tst_edit_questions"),
            array("permission" => "write", "cmd" => "ilObjQuestionPoolSettingsGeneralGUI::showForm", "lang_var" => "settings"),
            #array("permission" => "write", "cmd" => "questions", "lang_var" => "edit",
            #   "default" => false),
            array("permission" => "read", "cmd" => "questions", "lang_var" => "edit",
                "default" => true)
        );

        return $commands;
    }

    public function _checkAccess(string $cmd, string $permission, int $ref_id, int $obj_id, ?int $user_id = null): bool
    {
        global $DIC;
        $ilUser = $DIC['ilUser'];
        $lng = $DIC['lng'];
        $rbacsystem = $DIC['rbacsystem'];
        $ilAccess = $DIC['ilAccess'];

        if (is_null($user_id)) {
            $user_id = $ilUser->getId();
        }

        if ($rbacsystem->checkAccessOfUser($user_id, 'write', $ref_id)) {
            return true;
        }

        switch ($permission) {
            case 'visible':
            case 'read':
                if (!self::isOnline($obj_id)) {
                    $ilAccess->addInfoItem(ilAccessInfo::IL_NO_OBJECT_ACCESS, $lng->txt("tst_warning_pool_offline"));
                    return false;
                }
                break;
        }

        return true;
    }

    public static function isOnline($a_obj_id): bool
    {
        global $DIC;
        $ilDB = $DIC['ilDB'];

        $query = "
                        SELECT          COUNT(id_questionpool) cnt
                        FROM            qpl_questionpool
                        WHERE           obj_fi = %s
                        AND                     isonline = 1
                ";

        $res = $ilDB->queryF($query, array('integer'), array($a_obj_id));
        $row = $ilDB->fetchAssoc($res);

        return $row['cnt'] > 0;
    }
}