class.assOrderingHorizontalGUI.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/Test/classes/inc.AssessmentConstants.php';

class assOrderingHorizontalGUI extends assQuestionGUI implements ilGuiQuestionScoringAdjustable
{
        function __construct($id = -1)
        {
                parent::__construct();
                include_once "./Modules/TestQuestionPool/classes/class.assOrderingHorizontal.php";
                $this->object = new assOrderingHorizontal();
                $this->setErrorMessage($this->lng->txt("msg_form_save_error"));
                if ($id >= 0)
                {
                        $this->object->loadFromDb($id);
                }
        }

        function getCommand($cmd)
        {
                return $cmd;
        }

        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->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(FALSE);
                $form->setTableWidth("100%");
                $form->setId("orderinghorizontal");

                $this->addBasicQuestionFormProperties( $form );
                $this->populateQuestionSpecificFormPart( $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;
        }

        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
                $template = new ilTemplate("tpl.il_as_qpl_orderinghorizontal_output_solution.html", TRUE, TRUE, "Modules/TestQuestionPool");

                //$solutionvalue = "";
                if (($active_id > 0) && (!$show_correct_solution))
                {
                        $solutions =& $this->object->getSolutionValues($active_id, $pass);
                        if (strlen($solutions[0]["value1"]))
                        {
                                $elements = split("{::}", $solutions[0]["value1"]);
                        }

                        if( !count($elements) )
                        {
                                $elements = $this->object->getRandomOrderingElements();
                        }

                        foreach ($elements as $id => $element)
                        {
                                $template->setCurrentBlock("element");
                                $template->setVariable("ELEMENT_ID", "sol_e_" . $this->object->getId() . "_$id");
                                $template->setVariable("ELEMENT_VALUE", ilUtil::prepareFormOutput($element));
                                $template->parseCurrentBlock();
                        }

                        //$solutionvalue = str_replace("{::}", " ", $solutions[0]["value1"]);
                }
                else
                {
                        $elements = $this->object->getOrderingElements();
                        foreach ($elements as $id => $element)
                        {
                                $template->setCurrentBlock("element");
                                $template->setVariable("ELEMENT_ID", "sol_e_" . $this->object->getId() . "_$id");
                                $template->setVariable("ELEMENT_VALUE", ilUtil::prepareFormOutput($element));
                                $template->parseCurrentBlock();
                        }
                        //$solutionvalue = join($this->object->getOrderingElements(), " ");
                }

                if (($active_id > 0) && (!$show_correct_solution))
                {
                        if($this->object->getStep() === NULL)
                        {
                                $reached_points = $this->object->getReachedPoints($active_id, $pass);
                        }
                        else
                        {
                                $reached_points = $this->object->calculateReachedPoints($active_id, $pass);
                        }
                        if ($graphicalOutput)
                        {
                                // output of ok/not ok icons for user entered solutions
                                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();
                                }
                        }
                }
                else
                {
                        $reached_points = $this->object->getPoints();
                }

                if ($result_output)
                {
                        $resulttext = ($reached_points == 1) ? "(%s " . $this->lng->txt("point") . ")" : "(%s " . $this->lng->txt("points") . ")"; 
                        $template->setVariable("RESULT_OUTPUT", sprintf($resulttext, $reached_points));
                }
                if($show_question_text==true)
                {
                        $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($this->object->getQuestion(), TRUE));
                }
//              $template->setVariable("SOLUTION_TEXT", ilUtil::prepareFormOutput($solutionvalue));
                if ($this->object->textsize >= 10) $template->setVariable("STYLE", " style=\"font-size: " . $this->object->textsize . "%;\"");

                $questionoutput = $template->get();
                $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
                $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);


                $feedback = '';
                if($show_feedback)
                {
                        if( !$this->isTestPresentationContext() )
                        {
                                $fb = $this->getGenericFeedbackOutput($active_id, $pass);
                                $feedback .= strlen($fb) ? $fb : '';
                        }
                        
                        $fb = $this->getSpecificFeedbackOutput($active_id, $pass);
                        $feedback .=  strlen($fb) ? $fb : '';
                }
                if (strlen($feedback))
                {
                        $cssClass = ( $this->hasCorrectSolution($active_id, $pass) ?
                                ilAssQuestionFeedback::CSS_CLASS_FEEDBACK_CORRECT : ilAssQuestionFeedback::CSS_CLASS_FEEDBACK_WRONG
                        );
                        
                        $solutiontemplate->setVariable("ILC_FB_CSS_CLASS", $cssClass);
                        $solutiontemplate->setVariable("FEEDBACK", $this->object->prepareTextareaOutput( $feedback, true ));
                }
                $solutionoutput = $solutiontemplate->get();
                if (!$show_question_only)
                {
                        // get page object output
                        $solutionoutput = $this->getILIASPage($solutionoutput);
                }
                return $solutionoutput;
        }
        
        function getPreview($show_question_only = FALSE, $showInlineFeedback = false)
        {
                if( is_object($this->getPreviewSession()) && strlen((string)$this->getPreviewSession()->getParticipantsSolution()) )
                {
                        $elements = (string)$this->getPreviewSession()->getParticipantsSolution();
                        $elements = $this->object->splitAndTrimOrderElementText($elements, $this->object->getAnswerSeparator());
                }
                else
                {
                        $elements = $this->object->getRandomOrderingElements();
                }
                
                $template = new ilTemplate("tpl.il_as_qpl_orderinghorizontal_preview.html",TRUE, TRUE, "Modules/TestQuestionPool");
                foreach ($elements as $id => $element)
                {
                        $template->setCurrentBlock("element");
                        $template->setVariable("ELEMENT_ID", "e_" . $this->object->getId() . "_$id");
                        $template->setVariable("ORDERING_VALUE", ilUtil::prepareFormOutput($element));
                        $template->setVariable("ELEMENT_VALUE", ilUtil::prepareFormOutput($element));
                        $template->parseCurrentBlock();
                }
                $template->setVariable("QUESTION_ID", $this->object->getId());
                $template->setVariable("VALUE_ORDERRESULT", ' value="' . join($elements, '{::}') . '"');
                if ($this->object->textsize >= 10) $template->setVariable("STYLE", " style=\"font-size: " . $this->object->textsize . "%;\"");
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($this->object->getQuestion(), TRUE));
                $questionoutput = $template->get();
                if (!$show_question_only)
                {
                        // get page object output
                        $questionoutput = $this->getILIASPage($questionoutput);
                }
                $this->tpl->addJavascript("./Modules/TestQuestionPool/templates/default/orderinghorizontal.js");
                return $questionoutput;
        }
        
        // hey: prevPassSolutions - pass will be always available from now on
        function getTestOutput($active_id, $pass, $is_postponed = FALSE, $use_post_solutions = FALSE, $show_feedback = FALSE)
        // hey.
        {
                // generate the question output
                $template = new ilTemplate("tpl.il_as_qpl_orderinghorizontal_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
                $elements = $this->object->getRandomOrderingElements();
                
                if ($active_id)
                {
                        // hey: prevPassSolutions - obsolete due to central check
                        #$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 = $this->getTestOutputSolutions($active_id, $pass);
                        // hey.
                        if (count($solutions) == 1)
                        {
                                $elements = split("{::}", $solutions[0]["value1"]);
                        }
                }
                if (count($solutions) == 0)
                {
                        $_SESSION['qst_ordering_horizontal_elements'] = $elements;
                }
                else
                {
                        unset($_SESSION['qst_ordering_horizontal_elements']);
                }
                foreach ($elements as $id => $element)
                {
                        $template->setCurrentBlock("element");
                        $template->setVariable("ELEMENT_ID", "e_" . $this->object->getId() . "_$id");
                        $template->setVariable("ORDERING_VALUE", ilUtil::prepareFormOutput($element));
                        $template->setVariable("ELEMENT_VALUE", ilUtil::prepareFormOutput($element));
                        $template->parseCurrentBlock();
                }
                $template->setVariable("QUESTION_ID", $this->object->getId());
                if ($this->object->textsize >= 10) $template->setVariable("STYLE", " style=\"font-size: " . $this->object->textsize . "%;\"");
                $template->setVariable("VALUE_ORDERRESULT", ' value="' . join($elements, '{::}') . '"');
                $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($this->object->getQuestion(), TRUE));
                $questionoutput = $template->get();
                if (!$show_question_only)
                {
                        // get page object output
                        $questionoutput = $this->getILIASPage($questionoutput);
                }
                $this->tpl->addJavascript("./Modules/TestQuestionPool/templates/default/orderinghorizontal.js");
                $questionoutput = $template->get();
                $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id, $questionoutput);
                return $pageoutput;
        }

        function saveFeedback()
        {
                include_once "./Services/AdvancedEditing/classes/class.ilObjAdvancedEditing.php";
                $errors = $this->feedback(true);
                $this->object->saveFeedbackGeneric(0, $_POST["feedback_incomplete"]);
                $this->object->saveFeedbackGeneric(1, $_POST["feedback_complete"]);
                $this->object->cleanupMediaObjectUsage();
                parent::saveFeedback();
        }

        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");
                        $commands = $_POST["cmd"];
                        if (is_array($commands))
                        {
                                foreach ($commands as $key => $value)
                                {
                                        if (preg_match("/^suggestrange_.*/", $key, $matches))
                                        {
                                                $force_active = true;
                                        }
                                }
                        }
                        // 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, $pass)
        {
                if(strpos($this->object->getOrderText(),'::'))
                {
                        $answers = explode('::', $this->object->getOrderText());
                } else {
                        $answers = explode(' ', $this->object->getOrderText());
                }

                if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_values($answers)) )
                {
                        return '';
                }

                $output = '<table class="test_specific_feedback"><tbody>';

                foreach($answers as $idx => $answer)
                {
                        $feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
                                $this->object->getId(), $idx
                        );

                        $output .= "<tr><td>{$answer}</td><td>{$feedback}</td></tr>";
                }

                $output .= '</tbody></table>';

                return $this->object->prepareTextareaOutput($output, TRUE);
        }

        public function writeQuestionSpecificPostData(ilPropertyFormGUI $form)
        {
                $this->object->setTextSize( $_POST["textsize"] );
                $this->object->setOrderText( $_POST["ordertext"] );
                $this->object->setPoints( $_POST["points"] );
        }

        public function getAfterParticipationSuppressionQuestionPostVars()
        {
                return array();
        }

        public function populateQuestionSpecificFormPart(\ilPropertyFormGUI $form)
        {
                // ordertext
                $ordertext = new ilTextAreaInputGUI($this->lng->txt( "ordertext" ), "ordertext");
                $ordertext->setValue( $this->object->prepareTextareaOutput( $this->object->getOrderText() ) );
                $ordertext->setRequired( TRUE );
                $ordertext->setInfo( sprintf( $this->lng->txt( "ordertext_info" ), $this->object->separator ) );
                $ordertext->setRows( 10 );
                $ordertext->setCols( 80 );
                $form->addItem( $ordertext );
                // textsize
                $textsize = new ilNumberInputGUI($this->lng->txt( "textsize" ), "textsize");
                $textsize->setValue( $this->object->getTextSize() );
                $textsize->setInfo( $this->lng->txt( "textsize_info" ) );
                $textsize->setSize( 6 );
                $textsize->setMinValue( 10 );
                $textsize->setRequired( FALSE );
                $form->addItem( $textsize );
                // points
                $points = new ilNumberInputGUI($this->lng->txt( "points" ), "points");

                $points->allowDecimals( true );
                // mbecker: Fix for mantis bug 7866: Predefined values schould make sense.
                // This implements a default value of "1" for this question type.
                if ($this->object->getPoints() == null)
                {
                        $points->setValue( "1" );
                }
                else
                {
                        $points->setValue( $this->object->getPoints() );
                }
                $points->setRequired( TRUE );
                $points->setSize( 3 );
                $points->setMinValue( 0.0 );
                $points->setMinvalueShouldBeGreater( true );
                $form->addItem( $points );
        }

        public function getAggregatedAnswersView($relevant_answers)
        {
                return  $this->renderAggregateView(
                                        $this->aggregateAnswers( $relevant_answers, $this->object->getOrderText() ) )->get();
        }

        public function aggregateAnswers($relevant_answers_chosen, $answer_defined_on_question)
        {
                $aggregate = array();
                foreach($relevant_answers_chosen as $answer)
                {
                        $answer = str_replace($this->object->getAnswerSeparator(), '&nbsp;&nbsp;-&nbsp;&nbsp;', $answer);
                        if (in_array($answer['value1'], $aggregate))
                        {
                                $aggregate[$answer['value1']] = $aggregate[$answer['value1']]+1;
                        }
                        else
                        {
                                $aggregate[$answer['value1']] = 1;
                        }
                }

                return $aggregate;
        }

        public function renderAggregateView($aggregate)
        {
                $tpl = new ilTemplate('tpl.il_as_aggregated_answers_table.html', true, true, "Modules/TestQuestionPool");

                foreach ($aggregate as $key => $line_data)
                {
                        $tpl->setCurrentBlock( 'aggregaterow' );
                        $tpl->setVariable( 'COUNT', $line_data );
                        $tpl->setVariable( 'OPTION', $key );
                        $tpl->parseCurrentBlock();
                }
                return $tpl;
        }
}