class.ilTestEvaluationData.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilTestEvaluationData
{
    public $questionTitles;

    private $test;

    public $participants;

    public $statistics;

    public $arrFilter;

    public $datasets;
    
    protected $accessFilteredParticipantList;

    public function __sleep()
    {
        return array('questionTitles', 'participants', 'statistics', 'arrFilter', 'datasets', 'test');
    }

    public function __construct(ilObjTest $test = null)
    {
        $this->participants = array();
        $this->questionTitles = array();
        if ($test !== null) {
            $this->test = $test;
            
            if ($this->getTest()->getAccessFilteredParticipantList()) {
                $this->setAccessFilteredParticipantList(
                    $this->getTest()->getAccessFilteredParticipantList()
                );
            }
            
            $this->generateOverview();
        }
    }
    
    public function getAccessFilteredParticipantList()
    {
        return $this->accessFilteredParticipantList;
    }
    
    public function setAccessFilteredParticipantList($accessFilteredParticipantList)
    {
        $this->accessFilteredParticipantList = $accessFilteredParticipantList;
    }
    
    protected function checkParticipantAccess($activeId)
    {
        if ($this->getAccessFilteredParticipantList() === null) {
            return true;
        }
        
        return $this->getAccessFilteredParticipantList()->isActiveIdInList($activeId);
    }
    
    protected function loadRows()
    {
        global $DIC; /* @var ILIAS\DI\Container $DIC */

        $query = "
                        SELECT                  usr_data.usr_id,
                                                        usr_data.firstname,
                                                        usr_data.lastname,
                                                        usr_data.title,
                                                        usr_data.login,
                                                        tst_pass_result.*,
                                                        tst_active.submitted,
                                                        tst_active.last_finished_pass
                        FROM                    tst_pass_result, tst_active
                        LEFT JOIN               usr_data
                        ON                              tst_active.user_fi = usr_data.usr_id
                        WHERE                   tst_active.active_id = tst_pass_result.active_fi
                        AND                             tst_active.test_fi = %s
                        ORDER BY                usr_data.lastname,
                                                        usr_data.firstname,
                                                        tst_pass_result.active_fi,
                                                        tst_pass_result.pass,
                                                        tst_pass_result.tstamp
                ";
        
        $result = $DIC->database()->queryF(
            $query,
            array('integer'),
            array($this->getTest()->getTestId())
        );
        
        $rows = array();
        
        while ($row = $DIC->database()->fetchAssoc($result)) {
            if (!$this->checkParticipantAccess($row['active_fi'])) {
                continue;
            }
            
            $rows[] = $row;
        }
        
        return $rows;
    }
    
    public function generateOverview()
    {
        include_once "./Modules/Test/classes/class.ilTestEvaluationPassData.php";
        include_once "./Modules/Test/classes/class.ilTestEvaluationUserData.php";
        
        $this->participants = array();
        
        $pass = null;
        $checked = array();
        $thissets = 0;
        
        foreach ($this->loadRows() as $row) {
            $thissets++;
            
            $remove = false;
            
            if (!$this->participantExists($row["active_fi"])) {
                $this->addParticipant($row["active_fi"], new ilTestEvaluationUserData($this->getTest()->getPassScoring()));
                
                $this->getParticipant($row["active_fi"])->setName(
                    $this->getTest()->buildName($row["usr_id"], $row["firstname"], $row["lastname"], $row["title"])
                );
                
                $this->getParticipant($row["active_fi"])->setLogin($row["login"]);
                
                $this->getParticipant($row["active_fi"])->setUserID($row["usr_id"]);
                
                $this->getParticipant($row["active_fi"])->setSubmitted($row['submitted']);

                $this->getParticipant($row["active_fi"])->setLastFinishedPass($row['last_finished_pass']);
            }
            
            if (!is_object($this->getParticipant($row["active_fi"])->getPass($row["pass"]))) {
                $pass = new ilTestEvaluationPassData();
                $pass->setPass($row["pass"]);
                $this->getParticipant($row["active_fi"])->addPass($row["pass"], $pass);
            }
            
            $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setReachedPoints($row["points"]);
            $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setObligationsAnswered($row["obligations_answered"]);
            
            if ($row["questioncount"] == 0) {
                $data = ilObjTest::_getQuestionCountAndPointsForPassOfParticipant($row['active_fi'], $row['pass']);
                $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setMaxPoints($data['points']);
                $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setQuestionCount($data['count']);
            } else {
                $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setMaxPoints($row["maxpoints"]);
                $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setQuestionCount($row["questioncount"]);
            }
            
            $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setNrOfAnsweredQuestions($row["answeredquestions"]);
            $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setWorkingTime($row["workingtime"]);
            $this->getParticipant($row["active_fi"])->getPass($row["pass"])->setExamId((string) $row["exam_id"]);

            $this->getParticipant($row['active_fi'])->getPass($row['pass'])->setRequestedHintsCount($row['hint_count']);
            $this->getParticipant($row['active_fi'])->getPass($row['pass'])->setDeductedHintPoints($row['hint_points']);
        }
    }
    
    public function getTest()
    {
        return $this->test;
    }
    
    public function setTest($test)
    {
        $this->test = &$test;
    }
    
    public function setDatasets($datasets)
    {
        $this->datasets = $datasets;
    }
    
    public function getDatasets()
    {
        return $this->datasets;
    }
    
    public function addQuestionTitle($question_id, $question_title)
    {
        $this->questionTitles[$question_id] = $question_title;
    }
    
    public function getQuestionTitles()
    {
        return $this->questionTitles;
    }
    
    public function getQuestionTitle($question_id)
    {
        if (array_key_exists($question_id, $this->questionTitles)) {
            return $this->questionTitles[$question_id];
        } else {
            return "";
        }
    }
    
    public function calculateStatistics()
    {
        include_once "./Modules/Test/classes/class.ilTestStatistics.php";
        $this->statistics = new ilTestStatistics($this);
    }
    
    public function getTotalFinishedParticipants()
    {
        $finishedParticipants = 0;
        
        foreach ($this->participants as $active_id => $participant) {
            if (!$participant->isSubmitted()) {
                continue;
            }
            
            $finishedParticipants++;
        }
        
        return $finishedParticipants;
    }

    public function getParticipants()
    {
        if (is_array($this->arrFilter) && count($this->arrFilter) > 0) {
            $filteredParticipants = array();
            $courseids = array();
            $groupids = array();
            global $DIC;
            $ilDB = $DIC['ilDB'];
            if (array_key_exists('group', $this->arrFilter)) {
                $ids = ilObject::_getIdsForTitle($this->arrFilter['group'], 'grp', true);
                $groupids = array_merge($groupids, $ids);
            }
            if (array_key_exists('course', $this->arrFilter)) {
                $ids = ilObject::_getIdsForTitle($this->arrFilter['course'], 'crs', true);
                $courseids = array_merge($courseids, $ids);
            }
            foreach ($this->participants as $active_id => $participant) {
                $remove = false;
                if (array_key_exists('name', $this->arrFilter)) {
                    if (!(strpos(strtolower($participant->getName()), strtolower($this->arrFilter['name'])) !== false)) {
                        $remove = true;
                    }
                }
                if (!$remove) {
                    if (array_key_exists('group', $this->arrFilter)) {
                        include_once "./Services/Membership/classes/class.ilParticipants.php";
                        $groups = ilParticipants::_getMembershipByType($participant->getUserID(), "grp");
                        $foundfilter = false;
                        if (count(array_intersect($groupids, $groups))) {
                            $foundfilter = true;
                        }
                        if (!$foundfilter) {
                            $remove = true;
                        }
                    }
                }
                if (!$remove) {
                    if (array_key_exists('course', $this->arrFilter)) {
                        include_once "./Services/Membership/classes/class.ilParticipants.php";
                        $courses = ilParticipants::_getMembershipByType($participant->getUserID(), "crs");
                        $foundfilter = false;
                        if (count(array_intersect($courseids, $courses))) {
                            $foundfilter = true;
                        }
                        if (!$foundfilter) {
                            $remove = true;
                        }
                    }
                }
                if (!$remove) {
                    if (array_key_exists('active_id', $this->arrFilter)) {
                        if ($active_id != $this->arrFilter['active_id']) {
                            $remove = true;
                        }
                    }
                }
                if (!$remove) {
                    $filteredParticipants[$active_id] = $participant;
                }
            }
            return $filteredParticipants;
        } else {
            return $this->participants;
        }
    }
    
    public function resetFilter()
    {
        $this->arrFilter = array();
    }
    
    /*
    * Set an output filter for getParticipants
    *
    * @param string $by name, course, group
    * @param string $text Filter text
    */
    public function setFilter($by, $text)
    {
        $this->arrFilter = array($by => $text);
    }
    
    /*
    * Set an output filter for getParticipants
    *
    * @param array $arrFilter filter values
    */
    public function setFilterArray($arrFilter)
    {
        $this->arrFilter = $arrFilter;
    }
    
    public function addParticipant($active_id, $participant)
    {
        $this->participants[$active_id] = $participant;
    }
    
    public function getParticipant($active_id)
    {
        return $this->participants[$active_id];
    }
    
    public function participantExists($active_id)
    {
        return array_key_exists($active_id, $this->participants);
    }
    
    public function removeParticipant($active_id)
    {
        unset($this->participants[$active_id]);
    }
    
    public function getStatistics()
    {
        return $this->statistics;
    }

    public function getParticipantIds()
    {
        return array_keys($this->participants);
    }
} // END ilTestEvaluationData