class.ilTestSessionDynamicQuestionSet.php

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

require_once 'Modules/Test/classes/class.ilTestSession.php';
require_once 'Modules/Test/classes/class.ilTestDynamicQuestionSetFilterSelection.php';

require_once 'Modules/TestQuestionPool/classes/class.ilAssQuestionList.php';

class ilTestSessionDynamicQuestionSet extends ilTestSession
{
        private $questionSetFilterSelection = null;
        
        public function __construct()
        {
                parent::__construct();
                
                $this->questionSetFilterSelection = new ilTestDynamicQuestionSetFilterSelection();
        }

        public function getQuestionSetFilterSelection()
        {
                return $this->questionSetFilterSelection;
        }
        
        public function loadFromDb($active_id)
        {
                global $ilDB;
                $result = $ilDB->queryF("SELECT * FROM tst_active WHERE active_id = %s", 
                        array('integer'),
                        array($active_id)
                );
                if ($result->numRows())
                {
                        $row = $ilDB->fetchAssoc($result);
                        $this->active_id = $row["active_id"];
                        $this->user_id = $row["user_fi"];
                        $this->anonymous_id = $row["anonymous_id"];
                        $this->test_id = $row["test_fi"];
                        $this->lastsequence = $row["lastindex"];
                        $this->pass = $row["tries"];
                        $this->submitted = ($row["submitted"]) ? TRUE : FALSE;
                        $this->submittedTimestamp = $row["submittimestamp"];
                        $this->tstamp = $row["tstamp"];

                        $this->questionSetFilterSelection->setTaxonomySelection(unserialize($row['taxfilter']));
                        $this->questionSetFilterSelection->setAnswerStatusSelection($row['answerstatusfilter']);
                        $this->questionSetFilterSelection->setAnswerStatusActiveId($row['active_id']);
                }
        }
        
        function loadTestSession($test_id, $user_id = "", $anonymous_id = "")
        {
                global $ilDB;
                global $ilUser;

                if (!$user_id)
                {
                        $user_id = $ilUser->getId();
                }
                if (($GLOBALS['DIC']['ilUser']->getId() == ANONYMOUS_USER_ID) && $this->doesAccessCodeInSessionExists())
                {
                        $result = $ilDB->queryF("SELECT * FROM tst_active WHERE user_fi = %s AND test_fi = %s AND anonymous_id = %s",
                                array('integer','integer','text'),
                                array($user_id, $test_id, $this->getAccessCodeFromSession())
                        );
                }
                else if (strlen($anonymous_id))
                {
                        $result = $ilDB->queryF("SELECT * FROM tst_active WHERE user_fi = %s AND test_fi = %s AND anonymous_id = %s",
                                array('integer','integer','text'),
                                array($user_id, $test_id, $anonymous_id)
                        );
                }
                else
                {
                        if ($GLOBALS['DIC']['ilUser']->getId() == ANONYMOUS_USER_ID)
                        {
                                return NULL;
                        }
                        $result = $ilDB->queryF("SELECT * FROM tst_active WHERE user_fi = %s AND test_fi = %s",
                                array('integer','integer'),
                                array($user_id, $test_id)
                        );
                }

                // TODO bheyser: Refactor
                $this->user_id = $user_id;

                if ($result->numRows())
                {
                        $row = $ilDB->fetchAssoc($result);
                        $this->active_id = $row["active_id"];
                        $this->user_id = $row["user_fi"];
                        $this->anonymous_id = $row["anonymous_id"];
                        $this->test_id = $row["test_fi"];
                        $this->lastsequence = $row["lastindex"];
                        $this->pass = $row["tries"];
                        $this->submitted = ($row["submitted"]) ? TRUE : FALSE;
                        $this->submittedTimestamp = $row["submittimestamp"];
                        $this->tstamp = $row["tstamp"];

                        $this->questionSetFilterSelection->setTaxonomySelection(unserialize($row['taxfilter']));
                        $this->questionSetFilterSelection->setAnswerStatusSelection($row['answerstatusfilter']);
                        $this->questionSetFilterSelection->setAnswerStatusActiveId($row['active_id']);
                }
                elseif( $this->doesAccessCodeInSessionExists() )
                {
                        $this->unsetAccessCodeInSession();
                }
        }
        
        function saveToDb()
        {
                global $ilDB, $ilLog;
                
                $submitted = ($this->isSubmitted()) ? 1 : 0;
                if ($this->active_id > 0)
                {
                        $affectedRows = $ilDB->update('tst_active', 
                                array(
                                        'lastindex' => array('integer', $this->getLastSequence()),
                                        'tries' => array('integer', $this->getPass()),
                                        'submitted' => array('integer', $submitted),
                                        'submittimestamp' => array('timestamp', (strlen($this->getSubmittedTimestamp())) ? $this->getSubmittedTimestamp() : NULL),
                                        'tstamp' => array('integer', time()-10),
                                        'taxfilter' => array('text', serialize($this->getQuestionSetFilterSelection()->getTaxonomySelection())),
                                        'answerstatusfilter' => array('text', $this->getQuestionSetFilterSelection()->getAnswerStatusSelection())
                                ),
                                array(
                                        'active_id' => array('integer', $this->getActiveId())
                                )
                        );

                        // update learning progress
                        include_once("./Modules/Test/classes/class.ilObjTestAccess.php");
                        include_once("./Services/Tracking/classes/class.ilLPStatusWrapper.php");
                        ilLPStatusWrapper::_updateStatus(ilObjTestAccess::_lookupObjIdForTestId($this->getTestId()),
                                ilObjTestAccess::_getParticipantId($this->getActiveId()));
                }
                else
                {
                        if (!$this->activeIDExists($this->getUserId(), $this->getTestId()))
                        {
                                $anonymous_id = ($this->getAnonymousId()) ? $this->getAnonymousId() : NULL;

                                $next_id = $ilDB->nextId('tst_active');
                                $affectedRows = $ilDB->insert('tst_active',
                                        array(
                                                'active_id' => array('integer', $next_id),
                                                'user_fi' => array('integer', $this->getUserId()),
                                                'anonymous_id' => array('text', $anonymous_id),
                                                'test_fi' => array('integer', $this->getTestId()),
                                                'lastindex' => array('integer', $this->getLastSequence()),
                                                'tries' => array('integer', $this->getPass()),
                                                'submitted' => array('integer', $submitted),
                                                'submittimestamp' => array('timestamp', (strlen($this->getSubmittedTimestamp())) ? $this->getSubmittedTimestamp() : NULL),
                                                'tstamp' => array('integer', time()-10),
                                                'taxfilter' => array('text', serialize($this->getQuestionSetFilterSelection()->getTaxonomySelection())),
                                                'answerstatusfilter' => array('text', $this->getQuestionSetFilterSelection()->getAnswerStatusSelection())
                                        )
                                );
                                $this->active_id = $next_id;

                                // update learning progress
                                include_once("./Modules/Test/classes/class.ilObjTestAccess.php");
                                include_once("./Services/Tracking/classes/class.ilLPStatusWrapper.php");
                                ilLPStatusWrapper::_updateStatus(ilObjTestAccess::_lookupObjIdForTestId($this->getTestId()),
                                        $this->getUserId());
                        }
                }
                
                include_once("./Services/Tracking/classes/class.ilLearningProgress.php");
                ilLearningProgress::_tracProgress($this->getUserId(),
                                                                                  ilObjTestAccess::_lookupObjIdForTestId($this->getTestId()),
                                                                                  $this->getRefId(),
                                                                                  'tst');
        }
        
        public function getCurrentQuestionId()
        {
                return $this->getLastSequence();
        }

        public function setCurrentQuestionId($currentQuestionId)
        {
                $this->setLastSequence((int)$currentQuestionId);
        }
}