class.ilLPStatusTestPassed.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

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

class ilLPStatusTestPassed extends ilLPStatus
{

        function __construct($a_obj_id)
        {
                global $ilDB;

                parent::__construct($a_obj_id);
                $this->db = $ilDB;
        }

        static function _getInProgress($a_obj_id)
        {
                global $ilBench;
                
                $ilBench->start('LearningProgress','9182_LPStatusTestPassed_inProgress');
                $userIds = self::getUserIdsByResultArrayStatus($a_obj_id, 'in_progress');
                $ilBench->stop('LearningProgress','9182_LPStatusTestPassed_inProgress');
                
                return $userIds;
        }

        static function _getCompleted($a_obj_id)
        {
                global $ilBench;

                $ilBench->start('LearningProgress','9183_LPStatusTestPassed_completed');
                $userIds = self::getUserIdsByResultArrayStatus($a_obj_id, 'passed');
                $ilBench->stop('LearningProgress','9183_LPStatusTestPassed_completed');

                return $userIds;
        }

        static function _getNotAttempted($a_obj_id)
        {
                return self::getUserIdsByResultArrayStatus($a_obj_id, 'not_attempted');
        }

        static function _getFailed($a_obj_id)
        {
                return self::getUserIdsByResultArrayStatus($a_obj_id, 'failed');
        }
        
        private static function getUserIdsByResultArrayStatus($objId, $resultArrayStatus)
        {
                $status_info = ilLPStatusWrapper::_getStatusInfo($objId);
                
                $user_ids = array();
                
                foreach($status_info['results'] as $user_data)
                {
                        if($user_data[$resultArrayStatus])
                        {
                                $user_ids[] = $user_data['user_id'];
                        }
                }
                
                return $user_ids;
        }

        static function _getStatusInfo($a_obj_id)
        {
                include_once './Modules/Test/classes/class.ilObjTestAccess.php';
                $status_info['results'] = ilObjTestAccess::_getPassedUsers($a_obj_id);
                return $status_info;
        }
        
        function determineStatus($a_obj_id, $a_user_id, $a_obj = null)
        {
                global $ilDB;

                $status = self::LP_STATUS_NOT_ATTEMPTED_NUM;
                require_once 'Modules/Test/classes/class.ilObjTestAccess.php';
                $res = $ilDB->query("
                        SELECT tst_active.active_id, tst_active.tries, count(tst_sequence.active_fi) " . $ilDB->quoteIdentifier("sequences") . ", tst_active.last_finished_pass,
                                CASE WHEN
                                        (tst_tests.nr_of_tries - 1) = tst_active.last_finished_pass
                                THEN '1'
                                ELSE '0'
                                END is_last_pass
                        FROM tst_active
                        LEFT JOIN tst_sequence
                        ON tst_sequence.active_fi = tst_active.active_id
                        LEFT JOIN tst_tests
                        ON tst_tests.test_id = tst_active.test_fi
                        WHERE tst_active.user_fi = {$ilDB->quote($a_user_id, "integer")}
                        AND tst_active.test_fi = {$ilDB->quote(ilObjTestAccess::_getTestIDFromObjectID($a_obj_id))}
                        GROUP BY tst_active.active_id, tst_active.tries, is_last_pass
                ");

                if ($rec = $ilDB->fetchAssoc($res))
                {
                        if( $rec['sequences'] > 0 )
                        {
                                require_once 'Modules/Test/classes/class.ilObjTest.php';

                                $test_obj       = new ilObjTest($a_obj_id, false);
                                $is_passed      = ilObjTestAccess::_isPassed($a_user_id, $a_obj_id);

                                if($test_obj->getPassScoring() == SCORE_LAST_PASS)
                                {
                                        $is_finished    = false;
                                        if($rec['last_finished_pass'] != null && $rec['sequences'] - 1 == $rec['last_finished_pass'])
                                        {
                                                $is_finished = true;
                                        }
                                        $status = $this->determineStatusForScoreLastPassTests($is_finished, $is_passed);
                                }
                                else if($test_obj->getPassScoring() == SCORE_BEST_PASS)
                                {
                                        $status = self::LP_STATUS_IN_PROGRESS_NUM;
                                        
                                        if($rec['last_finished_pass'] != null)
                                        {
                                                $status = $this->determineLpStatus($is_passed);
                                        }
                                        
                                        if( !$rec['is_last_pass'] && $status == self::LP_STATUS_FAILED_NUM )
                                        {
                                                $status = self::LP_STATUS_IN_PROGRESS_NUM;
                                        }
                                }
                        }
                }

                return $status;
        }

        protected function determineStatusForScoreLastPassTests($is_finished, $passed)
        {
                $status = self::LP_STATUS_IN_PROGRESS_NUM;

                if($is_finished)
                {
                        $status = $this->determineLpStatus($passed);
                }

                return $status;
        }

        protected function determineLpStatus($passed)
        {
                $status = self::LP_STATUS_FAILED_NUM;

                if ($passed)
                {
                        $status = self::LP_STATUS_COMPLETED_NUM;
                }

                return $status;
        }

        function determinePercentage($a_obj_id, $a_user_id, $a_obj = null)
        {
                global $ilDB;
                
                $set = $ilDB->query("SELECT tst_result_cache.*, tst_active.user_fi FROM ".
                                         "tst_result_cache JOIN tst_active ON (tst_active.active_id = tst_result_cache.active_fi)".
                                         " JOIN tst_tests ON (tst_tests.test_id = tst_active.test_fi) ".
                                         " WHERE tst_tests.obj_fi = ".$ilDB->quote($a_obj_id, "integer").
                                         " AND tst_active.user_fi = ".$ilDB->quote($a_user_id, "integer"));
                $per = 0;
                if ($rec = $ilDB->fetchAssoc($set))
                {       
                        if ($rec["max_points"] > 0)
                        {
                                $per = min(100, 100 / $rec["max_points"] * $rec["reached_points"]);
                        }
                        else
                        {
                                // According to mantis #12305
                                $per = 0;
                        }
                }
                return (int) $per;
        }


}       
?>