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main/exercise/multiple_answer_combination.class.php
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256
main/exercise/multiple_answer_combination.class.php
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<?php
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/* For licensing terms, see /license.txt */
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use ChamiloSession as Session;
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/**
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* Class MultipleAnswerCombination.
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*
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* This class allows to instantiate an object of type
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* MULTIPLE_ANSWER (MULTIPLE CHOICE, MULTIPLE ANSWER),
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* extending the class question
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*
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* @author Eric Marguin
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*/
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class MultipleAnswerCombination extends Question
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{
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public $typePicture = 'mcmac.png';
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public $explanationLangVar = 'MultipleSelectCombination';
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/**
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* Constructor.
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*/
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public function __construct()
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{
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parent::__construct();
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$this->type = MULTIPLE_ANSWER_COMBINATION;
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$this->isContent = $this->getIsContent();
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}
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/**
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* {@inheritdoc}
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*/
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public function createAnswersForm($form)
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{
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$nb_answers = isset($_POST['nb_answers']) ? $_POST['nb_answers'] : 2;
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$nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
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$obj_ex = Session::read('objExercise');
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$html = '<table class="table table-striped table-hover">';
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$html .= '<thead>';
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$html .= '<tr>';
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$html .= '<th width="10">'.get_lang('Number').'</th>';
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$html .= '<th width="10">'.get_lang('True').'</th>';
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$html .= '<th width="50%">'.get_lang('Answer').'</th>';
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$html .= '<th width="50%">'.get_lang('Comment').'</th>';
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$html .= '</tr>';
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$html .= '</thead>';
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$html .= '<tbody>';
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$form->addHeader(get_lang('Answers'));
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$form->addHtml($html);
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$defaults = [];
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$correct = 0;
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$answer = false;
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if (!empty($this->iid)) {
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$answer = new Answer($this->iid);
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$answer->read();
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if ($answer->nbrAnswers > 0 && !$form->isSubmitted()) {
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$nb_answers = $answer->nbrAnswers;
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}
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}
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$form->addElement('hidden', 'nb_answers');
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$boxes_names = [];
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if ($nb_answers < 1) {
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$nb_answers = 1;
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echo Display::return_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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}
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for ($i = 1; $i <= $nb_answers; $i++) {
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$form->addHtml('<tr>');
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if (is_object($answer)) {
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$defaults['answer['.$i.']'] = $answer->answer[$i];
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$defaults['comment['.$i.']'] = $answer->comment[$i];
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$defaults['weighting['.$i.']'] = float_format($answer->weighting[$i], 1);
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$defaults['correct['.$i.']'] = $answer->correct[$i];
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} else {
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$defaults['answer[1]'] = get_lang('DefaultMultipleAnswer2');
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$defaults['comment[1]'] = get_lang('DefaultMultipleComment2');
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$defaults['correct[1]'] = true;
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$defaults['weighting[1]'] = 10;
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$defaults['answer[2]'] = get_lang('DefaultMultipleAnswer1');
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$defaults['comment[2]'] = get_lang('DefaultMultipleComment1');
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$defaults['correct[2]'] = false;
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}
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$renderer = &$form->defaultRenderer();
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'correct['.$i.']'
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);
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'counter['.$i.']'
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);
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'answer['.$i.']'
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);
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'comment['.$i.']'
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);
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$answer_number = $form->addElement('text', 'counter['.$i.']', null, 'value="'.$i.'"');
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$answer_number->freeze();
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$form->addElement(
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'checkbox',
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'correct['.$i.']',
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null,
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null,
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'class="checkbox" style="margin-left: 0em;"'
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);
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$boxes_names[] = 'correct['.$i.']';
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$form->addHtmlEditor(
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"answer[$i]",
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'',
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true,
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false,
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['ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '100']
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);
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$form->addHtmlEditor(
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"comment[$i]",
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'',
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false,
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false,
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['ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '100']
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);
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$form->addHtml('</tr>');
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}
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$form->addElement('html', '</tbody></table>');
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$form->add_multiple_required_rule(
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$boxes_names,
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get_lang('ChooseAtLeastOneCheckbox'),
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'multiple_required'
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);
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//only 1 answer the all deal ...
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$form->addText('weighting[1]', get_lang('Score'), false, ['value' => 10]);
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global $text;
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if ($obj_ex->edit_exercise_in_lp == true ||
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(empty($this->exerciseList) && empty($obj_ex->iid))
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) {
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// setting the save button here and not in the question class.php
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$buttonGroup = [
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$form->addButtonDelete(get_lang('LessAnswer'), 'lessAnswers', true),
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$form->addButtonCreate(get_lang('PlusAnswer'), 'moreAnswers', true),
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$form->addButtonSave($text, 'submitQuestion', true),
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];
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$form->addGroup($buttonGroup);
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}
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$defaults['correct'] = $correct;
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if (!empty($this->iid)) {
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$form->setDefaults($defaults);
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} else {
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if ($this->isContent == 1) {
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$form->setDefaults($defaults);
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}
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}
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$form->setConstants(['nb_answers' => $nb_answers]);
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}
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/**
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* {@inheritdoc}
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*/
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public function processAnswersCreation($form, $exercise)
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{
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$questionWeighting = 0;
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$objAnswer = new Answer($this->iid);
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$nb_answers = $form->getSubmitValue('nb_answers');
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for ($i = 1; $i <= $nb_answers; $i++) {
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$answer = trim($form->getSubmitValue('answer['.$i.']'));
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$comment = trim($form->getSubmitValue('comment['.$i.']'));
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if ($i == 1) {
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$weighting = trim($form->getSubmitValue('weighting['.$i.']'));
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} else {
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$weighting = 0;
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}
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$goodAnswer = trim($form->getSubmitValue('correct['.$i.']'));
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if ($goodAnswer) {
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$weighting = abs($weighting);
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} else {
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// $weighting = -$weighting;
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$weighting = abs($weighting);
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}
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if ($weighting > 0) {
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$questionWeighting += $weighting;
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}
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$objAnswer->createAnswer(
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$answer,
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$goodAnswer,
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$comment,
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$weighting,
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$i
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);
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}
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// saves the answers into the data base
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$objAnswer->save();
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// sets the total weighting of the question
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$this->updateWeighting($questionWeighting);
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$this->save($exercise);
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}
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/**
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* {@inheritdoc}
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*/
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public function return_header(Exercise $exercise, $counter = null, $score = [])
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{
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$header = parent::return_header($exercise, $counter, $score);
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$header .= '<table class="'.$this->question_table_class.'"><tr>';
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if (!in_array($exercise->results_disabled, [
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RESULT_DISABLE_SHOW_ONLY_IN_CORRECT_ANSWER,
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])
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) {
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$header .= '<th>'.get_lang('Choice').'</th>';
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if ($exercise->showExpectedChoiceColumn()) {
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$header .= '<th>'.get_lang('ExpectedChoice').'</th>';
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}
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}
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$header .= '<th>'.get_lang('Answer').'</th>';
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if ($exercise->showExpectedChoice()) {
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$header .= '<th>'.get_lang('Status').'</th>';
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}
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if (false === $exercise->hideComment) {
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$header .= '<th>'.get_lang('Comment').'</th>';
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}
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$header .= '</tr>';
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return $header;
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}
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}
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