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
{
        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;                                          
        }

        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;
        }

        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;         
        }
}