class.ilLPStatusQuestions.php

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<?php

declare(strict_types=0);
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilLPStatusQuestions extends ilLPStatus
{
    public static function _getInProgress(int $a_obj_id): array
    {
        $users = ilChangeEvent::lookupUsersInProgress($a_obj_id);

        // Exclude all users with status completed.
        $users = array_diff(
            $users,
            ilLPStatusWrapper::_getCompleted($a_obj_id)
        );

        return $users;
    }

    public static function _getCompleted(int $a_obj_id): array
    {
        $usr_ids = array();

        $users = ilChangeEvent::lookupUsersInProgress($a_obj_id);

        foreach ($users as $user_id) {
            // :TODO: this ought to be optimized
            $tracker = ilLMTracker::getInstanceByObjId($a_obj_id, $user_id);
            if ($tracker->getAllQuestionsCorrect()) {
                $usr_ids[] = $user_id;
            }
        }

        return $usr_ids;
    }

    public function determineStatus(
        int $a_obj_id,
        int $a_usr_id,
        object $a_obj = null
    ): int {
        $status = self::LP_STATUS_NOT_ATTEMPTED_NUM;

        if (ilChangeEvent::hasAccessed($a_obj_id, $a_usr_id)) {
            $status = self::LP_STATUS_IN_PROGRESS_NUM;

            $tracker = ilLMTracker::getInstanceByObjId($a_obj_id, $a_usr_id);
            if ($tracker->getAllQuestionsCorrect()) {
                $status = self::LP_STATUS_COMPLETED_NUM;
            }
        }

        return $status;
    }
}