class.ilLPStatusQuestions.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once './Services/Tracking/classes/class.ilLPStatus.php';

class ilLPStatusQuestions extends ilLPStatus
{
    public static function _getInProgress($a_obj_id)
    {
        include_once './Services/Tracking/classes/class.ilChangeEvent.php';
        $users = ilChangeEvent::lookupUsersInProgress($a_obj_id);
        
        // Exclude all users with status completed.
        $users = array_diff((array) $users, ilLPStatusWrapper::_getCompleted($a_obj_id));

        return $users;
    }

    public static function _getCompleted($a_obj_id)
    {
        $usr_ids = array();
        
        include_once './Services/Tracking/classes/class.ilChangeEvent.php';
        $users = ilChangeEvent::lookupUsersInProgress($a_obj_id);
        
        include_once "Modules/LearningModule/classes/class.ilLMTracker.php";
        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($a_obj_id, $a_user_id, $a_obj = null)
    {
        $status = self::LP_STATUS_NOT_ATTEMPTED_NUM;
        
        include_once "Services/Tracking/classes/class.ilChangeEvent.php";
        if (ilChangeEvent::hasAccessed($a_obj_id, $a_user_id)) {
            $status = self::LP_STATUS_IN_PROGRESS_NUM;
            
            include_once "Modules/LearningModule/classes/class.ilLMTracker.php";
            $tracker = ilLMTracker::getInstanceByObjId($a_obj_id, $a_user_id);
            if ($tracker->getAllQuestionsCorrect()) {
                $status = self::LP_STATUS_COMPLETED_NUM;
            }
        }
    
        return $status;
    }
}