class.assTextQuestionGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
require_once './Modules/TestQuestionPool/classes/class.assQuestionGUI.php';
require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiQuestionScoringAdjustable.php';
require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiAnswerScoringAdjustable.php';
require_once './Modules/Test/classes/inc.AssessmentConstants.php';
 
class assTextQuestionGUI extends assQuestionGUI implements ilGuiQuestionScoringAdjustable, ilGuiAnswerScoringAdjustable
{
        public function __construct($id = -1)
        {
                parent::__construct();
                include_once "./Modules/TestQuestionPool/classes/class.assTextQuestion.php";
                $this->object = new assTextQuestion();
                if ($id >= 0)
                {
                        $this->object->loadFromDb($id);
                }
        }
 
        public function writePostData($always = false)
        {
                $hasErrors = (!$always) ? $this->editQuestion(true) : false;
                if (!$hasErrors)
                {
                        require_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
                        $this->writeQuestionGenericPostData();
                        $this->writeQuestionSpecificPostData(new ilPropertyFormGUI());
                        $this->writeAnswerSpecificPostData(new ilPropertyFormGUI());
                        $this->saveTaxonomyAssignments();
                        return 0;
                }
                return 1;
        }
 
        public function editQuestion($checkonly = FALSE)
        {
                $save = $this->isSaveCommand();
                $this->getQuestionTemplate();
 
                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                $form->setFormAction($this->ctrl->getFormAction($this));
                $form->setTitle($this->outQuestionType());
                $form->setMultipart(TRUE);
                $form->setTableWidth("100%");
                $form->setId("asstextquestion");
 
                $this->addBasicQuestionFormProperties( $form );
                $this->populateQuestionSpecificFormPart( $form );
                $this->populateAnswerSpecificFormPart( $form );
 
                
                $this->populateTaxonomyFormSection($form);
                
                $this->addQuestionFormCommandButtons($form);
                
                $errors = false;
        
                if ($save)
                {
                        $form->setValuesByPost();
                        $errors = !$form->checkInput();
                        $form->setValuesByPost(); // again, because checkInput now performs the whole stripSlashes handling and we need this if we don't want to have duplication of backslashes
                        if ($errors) $checkonly = false;
                }
 
                if (!$checkonly) $this->tpl->setVariable("QUESTION_DATA", $form->getHTML());
                return $errors;
        }
        
        private static function buildAnswerTextOnlyArray($answers)
        {
                $answerTexts = array();
                
                foreach($answers as $answer)
                {
                        $answerTexts[] = $answer->getAnswertext();
                }
                
                return $answerTexts;
        }
 
        function outAdditionalOutput()
        {
                if ($this->object->getMaxNumOfChars() > 0)
                {
                        $this->tpl->addBlockFile("CONTENT_BLOCK", "charcounter", "tpl.charcounter.html", "Modules/TestQuestionPool");
                        $this->tpl->setCurrentBlock("charcounter");
                        $this->tpl->setVariable("MAXCHARS", $this->object->getMaxNumOfChars());
                        $this->tpl->parseCurrentBlock();
                }
        }
 
        function outQuestionForTest($formaction, $active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
        {
                $test_output = $this->getTestOutput($active_id, $pass, $is_postponed, $use_post_solutions); 
                $this->tpl->setVariable("QUESTION_OUTPUT", $test_output);
                $this->tpl->setVariable("FORMACTION", $formaction);
 
                // TODO - BEGIN: what exactly is done here? cant we use the parent method? 
 
                include_once "./Services/RTE/classes/class.ilRTE.php";
                $rtestring = ilRTE::_getRTEClassname();
                include_once "./Services/RTE/classes/class.$rtestring.php";
                $rte = new $rtestring();
                include_once "./Services/Object/classes/class.ilObject.php";
                $obj_id = ilObject::_lookupObjectId($_GET["ref_id"]);
                $obj_type = ilObject::_lookupType($_GET["ref_id"], TRUE);
                $rte->addUserTextEditor("textinput");
                $this->outAdditionalOutput();
 
                // TODO - END: what exactly is done here? cant we use the parent method? 
        }
 
        function getSolutionOutput(
                $active_id,
                $pass = NULL,
                $graphicalOutput = FALSE,
                $result_output = FALSE,
                $show_question_only = TRUE,
                $show_feedback = FALSE,
                $show_correct_solution = FALSE,
                $show_manual_scoring = FALSE,
                $show_question_text = TRUE
        )
        {
                // get the solution of the user for the active pass or from the last pass if allowed
                
                $user_solution = $this->getUserAnswer( $active_id, $pass );
                
                if (($active_id > 0) && (!$show_correct_solution))
                {
                        $solution = $user_solution;
                }
                else
                {
                        $solution = $this->getBestAnswer();
                }
                
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_text_question_output_solution.html", TRUE, TRUE, "Modules/TestQuestionPool");
                $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
 
                $solution = $this->object->getHtmlUserSolutionPurifier()->purify($solution);
                $template->setVariable("ESSAY", $this->object->prepareTextareaOutput($solution, TRUE));
                
                $questiontext = $this->object->getQuestion();
                
                if (!$show_correct_solution)
                {
                        $max_no_of_chars = $this->object->getMaxNumOfChars();
                        
                        if ($max_no_of_chars == 0)
                        {
                                $max_no_of_chars = ucfirst($this->lng->txt('unlimited'));
                        }
                        
                        $act_no_of_chars = strlen($user_solution);
                        $template->setVariable("CHARACTER_INFO", '<b>' . $max_no_of_chars . '</b>' . 
                                $this->lng->txt('answer_characters') . ' <b>' . $act_no_of_chars . '</b>');
                }
                if (($active_id > 0) && (!$show_correct_solution))
                {
                        if ($graphicalOutput)
                        {
                                // output of ok/not ok icons for user entered solutions
                                $reached_points = $this->object->getReachedPoints($active_id, $pass);
                                if ($reached_points == $this->object->getMaximumPoints())
                                {
                                        $template->setCurrentBlock("icon_ok");
                                        $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.svg"));
                                        $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
                                        $template->parseCurrentBlock();
                                }
                                else
                                {
                                        $template->setCurrentBlock("icon_ok");
                                        if ($reached_points > 0)
                                        {
                                                $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_mostly_ok.svg"));
                                                $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_not_correct_but_positive"));
                                        }
                                        else
                                        {
                                                $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.svg"));
                                                $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
                                        }
                                        $template->parseCurrentBlock();
                                }
                        }
                }
                if ($show_question_text==true)
                {
                        $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                }
                $questionoutput = $template->get();
                
                $feedback = '';
                if($show_feedback)
                {
                        $fb = $this->getGenericFeedbackOutput($active_id, $pass);
                        $feedback .=  strlen($fb) ? $fb : '';
                        
                        $fb = $this->getSpecificFeedbackOutput($active_id, $pass);
                        $feedback .=  strlen($fb) ? $fb : '';
                }
                if (strlen($feedback)) $solutiontemplate->setVariable("FEEDBACK", $this->object->prepareTextareaOutput( $feedback, true ));
                
                $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
 
                $solutionoutput = $solutiontemplate->get(); 
                if (!$show_question_only)
                {
                        // get page object output
                        $solutionoutput = $this->getILIASPage($solutionoutput);
                }
                return $solutionoutput;
        }
 
        private function getBestAnswer()
        {
                $answers = $this->object->getAnswers();
                if (count( $answers ))
                {
                        $user_solution = $this->lng->txt( "solution_contain_keywords" ) . "<ul>";
                        
                        foreach ($answers as $answer)
                        {
                                $user_solution .= '<li>'. $answer->getAnswertext();
                                
                                if( in_array($this->object->getKeywordRelation(), assTextQuestion::getScoringModesWithPointsByKeyword()) )
                                {
                                        $user_solution .= ' ' . $this->lng->txt('for') . ' ';
                                        $user_solution .= $answer->getPoints() . ' ' . $this->lng->txt('points') . '</li>';
                                }
                        }
                        $user_solution .= '</ul>';
                        
                        $user_solution .= $this->lng->txt('essay_scoring_mode') . ': ';
                        
                        switch( $this->object->getKeywordRelation() )
                        {
                                case 'any':
                                        $user_solution .= $this->lng->txt('essay_scoring_mode_keyword_relation_any');
                                        break;
                                case 'all':
                                        $user_solution .= $this->lng->txt('essay_scoring_mode_keyword_relation_all');
                                        break;
                                case 'one':
                                        $user_solution .= $this->lng->txt('essay_scoring_mode_keyword_relation_one');
                                        break;
                        }
                }
                return $user_solution;
        }
 
        private function getUserAnswer($active_id, $pass)
        {
                $user_solution = "";
                $solutions     = $this->object->getSolutionValues( $active_id, $pass );
                foreach ($solutions as $idx => $solution_value)
                {
                        $user_solution = $solution_value["value1"];
                }
                return $user_solution;
        }
 
        function getPreview($show_question_only = FALSE, $showInlineFeedback = false)
        {
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_text_question_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
                if ($this->object->getMaxNumOfChars())
                {
                        $template->setCurrentBlock("maximum_char_hint");
                        $template->setVariable("MAXIMUM_CHAR_HINT", sprintf($this->lng->txt("text_maximum_chars_allowed"), $this->object->getMaxNumOfChars()));
                        $template->parseCurrentBlock();
                        #mbecker: No such block. $template->setCurrentBlock("has_maxchars");
                        $template->setVariable("MAXCHARS", $this->object->getMaxNumOfChars());
                        $template->parseCurrentBlock();
                        $template->setCurrentBlock("maxchars_counter");
                        $template->setVariable("MAXCHARS", $this->object->getMaxNumOfChars());
                        $template->setVariable("TEXTBOXSIZE", strlen($this->object->getMaxNumOfChars()));
                        $template->setVariable("CHARACTERS", $this->lng->txt("characters"));
                        $template->parseCurrentBlock();
                }
 
                if( is_object($this->getPreviewSession()) )
                {
                        $template->setVariable("ESSAY", ilUtil::prepareFormOutput(
                                $this->getPreviewSession()->getParticipantsSolution()
                        ));
                }
                
                $questiontext = $this->object->getQuestion();
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                $questionoutput = $template->get();
                if (!$show_question_only)
                {
                        // get page object output
                        $questionoutput = $this->getILIASPage($questionoutput);
                }
                return $questionoutput;
        }
 
        function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE)
        {
                // get the solution of the user for the active pass or from the last pass if allowed
                $user_solution = "";
                if ($active_id)
                {
                        $solutions = NULL;
                        include_once "./Modules/Test/classes/class.ilObjTest.php";
                        if (!ilObjTest::_getUsePreviousAnswers($active_id, true))
                        {
                                if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
                        }
                        $solutions =& $this->object->getSolutionValues($active_id, $pass);
                        foreach ($solutions as $idx => $solution_value)
                        {
                                $user_solution = $solution_value["value1"];
                        }
                }
                
                // generate the question output
                include_once "./Services/UICore/classes/class.ilTemplate.php";
                $template = new ilTemplate("tpl.il_as_qpl_text_question_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
                if ($this->object->getMaxNumOfChars())
                {
                        $template->setCurrentBlock("maximum_char_hint");
                        $template->setVariable("MAXIMUM_CHAR_HINT", sprintf($this->lng->txt("text_maximum_chars_allowed"), $this->object->getMaxNumOfChars()));
                        $template->parseCurrentBlock();
                        #mbecker: No such block. $template->setCurrentBlock("has_maxchars");
                        $template->setVariable("MAXCHARS", $this->object->getMaxNumOfChars());
                        $template->parseCurrentBlock();
                        $template->setCurrentBlock("maxchars_counter");
                        $template->setVariable("MAXCHARS", $this->object->getMaxNumOfChars());
                        $template->setVariable("TEXTBOXSIZE", strlen($this->object->getMaxNumOfChars()));
                        $template->setVariable("CHARACTERS", $this->lng->txt("characters"));
                        $template->parseCurrentBlock();
                }
                $template->setVariable("ESSAY", ilUtil::prepareFormOutput($user_solution));
                $questiontext = $this->object->getQuestion();
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
                $questionoutput = $template->get();
                $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id, $questionoutput);
                include_once "./Services/YUI/classes/class.ilYuiUtil.php";
                ilYuiUtil::initDomEvent();
                return $pageoutput;
        }
 
        function addSuggestedSolution()
        {
                $_SESSION["subquestion_index"] = 0;
                if ($_POST["cmd"]["addSuggestedSolution"])
                {
                        if ($this->writePostData())
                        {
                                ilUtil::sendInfo($this->getErrorMessage());
                                $this->editQuestion();
                                return;
                        }
                        if (!$this->checkInput())
                        {
                                ilUtil::sendInfo($this->lng->txt("fill_out_all_required_fields_add_answer"));
                                $this->editQuestion();
                                return;
                        }
                }
                $this->object->saveToDb();
                $this->ctrl->setParameter($this, "q_id", $this->object->getId());
                $this->tpl->setVariable("HEADER", $this->object->getTitle());
                $this->getQuestionTemplate();
                parent::addSuggestedSolution();
        }
 
        function setQuestionTabs()
        {
                global $rbacsystem, $ilTabs;
 
                $ilTabs->clearTargets();
                
                $this->ctrl->setParameterByClass("ilAssQuestionPageGUI", "q_id", $_GET["q_id"]);
                include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
                $q_type = $this->object->getQuestionType();
 
                if (strlen($q_type))
                {
                        $classname = $q_type . "GUI";
                        $this->ctrl->setParameterByClass(strtolower($classname), "sel_question_types", $q_type);
                        $this->ctrl->setParameterByClass(strtolower($classname), "q_id", $_GET["q_id"]);
                }
 
                if ($_GET["q_id"])
                {
                        if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
                        {
                                // edit page
                                $ilTabs->addTarget("edit_page",
                                        $this->ctrl->getLinkTargetByClass("ilAssQuestionPageGUI", "edit"),
                                        array("edit", "insert", "exec_pg"),
                                        "", "", $force_active);
                        }
 
                        $this->addTab_QuestionPreview($ilTabs);
                }
 
                $force_active = false;
                if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
                {
                        $url = "";
                        if ($classname) $url = $this->ctrl->getLinkTargetByClass($classname, "editQuestion");
                        // edit question properties
                        $ilTabs->addTarget("edit_question",
                                $url,
                                array("editQuestion", "save", "saveEdit", "originalSyncForm"),
                                $classname, "", $force_active);
                }
 
                // add tab for question feedback within common class assQuestionGUI
                $this->addTab_QuestionFeedback($ilTabs);
 
                // add tab for question hint within common class assQuestionGUI
                $this->addTab_QuestionHints($ilTabs);
 
                // add tab for question's suggested solution within common class assQuestionGUI
                $this->addTab_SuggestedSolution($ilTabs, $classname);
 
                // Assessment of questions sub menu entry
                if ($_GET["q_id"])
                {
                        $ilTabs->addTarget("statistics",
                                $this->ctrl->getLinkTargetByClass($classname, "assessment"),
                                array("assessment"),
                                $classname, "");
                }
 
                $this->addBackTab($ilTabs);
        }
 
        function getSpecificFeedbackOutput($active_id, $pass)
        {
                        $feedback = '<table><tbody>';
                        $user_answers = $this->object->getSolutionValues($active_id);
                        $user_answer = '  '. $user_answers[0]['value1'];
                
                        foreach ($this->object->getAnswers() as $idx => $ans)
                        {
                                if ($this->object->isKeywordMatching($user_answer, $ans->getAnswertext() ))
                                {
                                        $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
                                                        $this->object->getId(), $idx
                                        );
                                        $feedback .= '<tr><td><b><i>' . $ans->getAnswertext() . '</i></b></td><td>';
                                        $feedback .= $fb . '</td> </tr>';
                                }
                        }
                
                        $feedback .= '</tbody></table>';
                        return $this->object->prepareTextareaOutput($feedback, TRUE);
        }
 
        public function writeQuestionSpecificPostData(ilPropertyFormGUI $form)
        {
                $this->object->setMaxNumOfChars( $_POST["maxchars"] );
                $this->object->setTextRating( $_POST["text_rating"] );
                $this->object->setKeywordRelation( $_POST['scoring_mode'] );
        }
 
        public function writeAnswerSpecificPostData(ilPropertyFormGUI $form)
        {
                switch ($this->object->getKeywordRelation())
                {
                        case 'non':
                                $this->object->setAnswers( array() );
                                $this->object->setPoints( $_POST['non_keyword_points'] );
                                break;
                        case 'any':
                                $this->object->setAnswers( $_POST['any_keyword'] );
                                $this->object->setPoints( $this->object->getMaximumPoints() );
                                break;
                        case 'all':
                                $this->object->setAnswers( $_POST['all_keyword'] );
                                $this->object->setPoints( $_POST['all_keyword_points'] );
                                break;
                        case 'one':
                                $this->object->setAnswers( $_POST['one_keyword'] );
                                $this->object->setPoints( $_POST['one_keyword_points'] );
                                break;
                }
        }
 
        public function populateQuestionSpecificFormPart(\ilPropertyFormGUI $form)
        {
                // maxchars
                $maxchars = new ilNumberInputGUI($this->lng->txt( "maxchars" ), "maxchars");
                $maxchars->setSize( 5 );
                if ($this->object->getMaxNumOfChars() > 0)
                        $maxchars->setValue( $this->object->getMaxNumOfChars() );
                $maxchars->setInfo( $this->lng->txt( "description_maxchars" ) );
                $form->addItem( $maxchars );
 
                // text rating
                $textrating = new ilSelectInputGUI($this->lng->txt("text_rating"), "text_rating");
                $text_options = array(
                        "ci" => $this->lng->txt("cloze_textgap_case_insensitive"),
                        "cs" => $this->lng->txt("cloze_textgap_case_sensitive"),
                        "l1" => sprintf($this->lng->txt("cloze_textgap_levenshtein_of"), "1"),
                        "l2" => sprintf($this->lng->txt("cloze_textgap_levenshtein_of"), "2"),
                        "l3" => sprintf($this->lng->txt("cloze_textgap_levenshtein_of"), "3"),
                        "l4" => sprintf($this->lng->txt("cloze_textgap_levenshtein_of"), "4"),
                        "l5" => sprintf($this->lng->txt("cloze_textgap_levenshtein_of"), "5")
                );
                $textrating->setOptions($text_options);
                $textrating->setValue($this->object->getTextRating());
                $form->addItem($textrating);
 
                return $form;
        }
 
        public function populateAnswerSpecificFormPart(\ilPropertyFormGUI $form)
        {
                $scoringMode = new ilRadioGroupInputGUI(
                        $this->lng->txt( 'essay_scoring_mode' ), 'scoring_mode'
                );
 
                $scoringOptionNone = new ilRadioOption($this->lng->txt( 'essay_scoring_mode_without_keywords' ),
                                                                                           'non', $this->lng->txt( 'essay_scoring_mode_without_keywords_desc'
                        )
                );
                $scoringOptionAnyKeyword = new ilRadioOption($this->lng->txt( 'essay_scoring_mode_keyword_relation_any' ),
                                                                                                         'any', $this->lng->txt( 'essay_scoring_mode_keyword_relation_any_desc'
                        )
                );
                $scoringOptionAllKeyword = new ilRadioOption($this->lng->txt( 'essay_scoring_mode_keyword_relation_all' ),
                                                                                                         'all', $this->lng->txt( 'essay_scoring_mode_keyword_relation_all_desc'
                        )
                );
                $scoringOptionOneKeyword = new ilRadioOption($this->lng->txt( 'essay_scoring_mode_keyword_relation_one' ),
                                                                                                         'one', $this->lng->txt( 'essay_scoring_mode_keyword_relation_one_desc'
                        )
                );
 
                $scoringMode->addOption( $scoringOptionNone );
                $scoringMode->addOption( $scoringOptionAnyKeyword );
                $scoringMode->addOption( $scoringOptionAllKeyword );
                $scoringMode->addOption( $scoringOptionOneKeyword );
                $scoringMode->setRequired( true );
                $scoringMode->setValue( strlen( $this->object->getKeywordRelation() ) ? $this->object->getKeywordRelation(
                                                                ) : 'non'
                );
 
                if ($this->object->getAnswerCount() == 0)
                {
                        $this->object->addAnswer( "", 1, 0, 0 );
                }
                require_once "./Modules/TestQuestionPool/classes/class.ilEssayKeywordWizardInputGUI.php";
 
                // Without Keywords
                $nonKeywordPoints = new ilNumberInputGUI($this->lng->txt( "points" ), "non_keyword_points");
                $nonKeywordPoints->allowDecimals(true);
                $nonKeywordPoints->setValue( $this->object->getPoints() );
                $nonKeywordPoints->setRequired( TRUE );
                $nonKeywordPoints->setSize( 3 );
                $nonKeywordPoints->setMinValue( 0.0 );
                $nonKeywordPoints->setMinvalueShouldBeGreater( true );
                $scoringOptionNone->addSubItem( $nonKeywordPoints );
 
                // Any Keyword
                $anyKeyword = new ilEssayKeywordWizardInputGUI($this->lng->txt( "answers" ), "any_keyword");
                $anyKeyword->setRequired( TRUE );
                $anyKeyword->setQuestionObject( $this->object );
                $anyKeyword->setSingleline( TRUE );
                $anyKeyword->setValues( $this->object->getAnswers() );
                $scoringOptionAnyKeyword->addSubItem( $anyKeyword );
 
                // All Keywords
                $allKeyword = new ilTextWizardInputGUI($this->lng->txt( "answers" ), "all_keyword");
                $allKeyword->setRequired( TRUE );
                //$allKeyword->setQuestionObject($this->object);
                //$allKeyword->setSingleline(TRUE);
                $allKeyword->setValues( self::buildAnswerTextOnlyArray( $this->object->getAnswers() ) );
                $scoringOptionAllKeyword->addSubItem( $allKeyword );
                $allKeywordPoints = new ilNumberInputGUI($this->lng->txt( "points" ), "all_keyword_points");
                $allKeywordPoints->allowDecimals(true);
                $allKeywordPoints->setValue( $this->object->getPoints() );
                $allKeywordPoints->setRequired( TRUE );
                $allKeywordPoints->setSize( 3 );
                $allKeywordPoints->setMinValue( 0.0 );
                $allKeywordPoints->setMinvalueShouldBeGreater( true );
                $scoringOptionAllKeyword->addSubItem( $allKeywordPoints );
 
                // One Keywords
                $oneKeyword = new ilTextWizardInputGUI($this->lng->txt( "answers" ), "one_keyword");
                $oneKeyword->setRequired( TRUE );
                //$oneKeyword->setQuestionObject($this->object);
                //$oneKeyword->setSingleline(TRUE);
                $oneKeyword->setValues( self::buildAnswerTextOnlyArray( $this->object->getAnswers() ) );
                $scoringOptionOneKeyword->addSubItem( $oneKeyword );
                $oneKeywordPoints = new ilNumberInputGUI($this->lng->txt( "points" ), "one_keyword_points");
                $oneKeywordPoints->allowDecimals(true);
                $oneKeywordPoints->setValue( $this->object->getPoints() );
                $oneKeywordPoints->setRequired( TRUE );
                $oneKeywordPoints->setSize( 3 );
                $oneKeywordPoints->setMinValue( 0.0 );
                $oneKeywordPoints->setMinvalueShouldBeGreater( true );
                $scoringOptionOneKeyword->addSubItem( $oneKeywordPoints );
 
                $form->addItem( $scoringMode );
        }
 
        public function getAfterParticipationSuppressionAnswerPostVars()
        {
                return array();
        }
 
        public function getAfterParticipationSuppressionQuestionPostVars()
        {
                return array();
        }
 
        public function getAggregatedAnswersView($relevant_answers)
        {
                return ''; //print_r($relevant_answers,true);
        }
}