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326 lines
12 KiB
326 lines
12 KiB
<?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 MultipleAnswerTrueFalse
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* This class allows to instantiate an object of type MULTIPLE_ANSWER
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* (MULTIPLE CHOICE, MULTIPLE ANSWER), extending the class question
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* @author Julio Montoya
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*
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* @package chamilo.exercise
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*/
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class MultipleAnswerTrueFalse extends Question
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{
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public static $typePicture = 'mcmao.png';
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public static $explanationLangVar = 'MultipleAnswerTrueFalse';
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public $options;
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/**
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* Constructor
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*/
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public function __construct()
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{
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parent::__construct();
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$this->type = MULTIPLE_ANSWER_TRUE_FALSE;
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$this->isContent = $this-> getIsContent();
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$this->options = array(1 => 'True', 2 => 'False', 3 => 'DoubtScore');
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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']) ? $_POST['nb_answers'] : 4;
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// The previous default value was 2. See task #1759.
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$nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
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$course_id = api_get_course_int_id();
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$obj_ex = Session::read('objExercise');
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$renderer = & $form->defaultRenderer();
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$defaults = array();
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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>'.get_lang('Number').'</th>';
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$html .= '<th>'.get_lang('True').'</th>';
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$html .= '<th>'.get_lang('False').'</th>';
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$html .= '<th>'.get_lang('Answer').'</th>';
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// show column comment when feedback is enable
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if ($obj_ex->selectFeedbackType() != EXERCISE_FEEDBACK_TYPE_EXAM) {
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$html .= '<th>'.get_lang('Comment').'</th>';
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}
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$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($html);
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$correct = 0;
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$answer = null;
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if (!empty($this->id)) {
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$answer = new Answer($this->id);
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$answer->read();
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if (count($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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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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// Can be more options
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$optionData = Question::readQuestionOption($this->id, $course_id);
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for ($i = 1; $i <= $nb_answers; ++$i) {
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$form->addHtml('<tr>');
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$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 = $form->addElement(
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'text',
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'counter['.$i.']',
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null,
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'value="'.$i.'"'
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);
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$answer_number->freeze();
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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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$correct = $answer->correct[$i];
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$defaults['correct['.$i.']'] = $correct;
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$j = 1;
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if (!empty($optionData)) {
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foreach ($optionData as $id => $data) {
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$form->addElement('radio', 'correct['.$i.']', null, null, $id);
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$j++;
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if ($j == 3) {
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break;
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}
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}
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}
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} else {
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$form->addElement('radio', 'correct['.$i.']', null, null, 1);
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$form->addElement('radio', 'correct['.$i.']', null, null, 2);
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$defaults['answer['.$i.']'] = '';
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$defaults['comment['.$i.']'] = '';
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$defaults['correct['.$i.']'] = '';
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}
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$form->addHtmlEditor(
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"answer[$i]",
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get_lang('ThisFieldIsRequired'),
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true,
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false,
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['ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '100']
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);
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// show comment when feedback is enable
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if ($obj_ex->selectFeedbackType() != EXERCISE_FEEDBACK_TYPE_EXAM) {
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$form->addElement(
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'html_editor',
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'comment['.$i.']',
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null,
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array(),
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array(
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'ToolbarSet' => 'TestProposedAnswer',
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'Width' => '100%',
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'Height' => '100',
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)
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);
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}
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$form->addHtml('</tr>');
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}
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$form->addHtml('</tbody></table>');
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$correctInputTemplate = '<div class="form-group">';
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$correctInputTemplate .= '<label class="col-sm-2 control-label">';
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$correctInputTemplate .= '<span class="form_required">*</span>'.get_lang('Score');
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$correctInputTemplate .= '</label>';
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$correctInputTemplate .= '<div class="col-sm-8">';
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$correctInputTemplate .= '<table>';
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$correctInputTemplate .= '<tr>';
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$correctInputTemplate .= '<td>';
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$correctInputTemplate .= get_lang('Correct').'{element}';
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$correctInputTemplate .= '<!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->';
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$correctInputTemplate .= '</td>';
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$wrongInputTemplate = '<td>';
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$wrongInputTemplate .= get_lang('Wrong').'{element}';
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$wrongInputTemplate .= '<!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->';
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$wrongInputTemplate .= '</td>';
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$doubtScoreInputTemplate = '<td>'.get_lang('DoubtScore').'<br>{element}';
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$doubtScoreInputTemplate .= '<!-- BEGIN error --><span class="form_error">{error}</span><!-- END error -->';
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$doubtScoreInputTemplate .= '</td>';
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$doubtScoreInputTemplate .= '</tr>';
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$doubtScoreInputTemplate .= '</table>';
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$doubtScoreInputTemplate .= '</div>';
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$doubtScoreInputTemplate .= '</div>';
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$renderer->setElementTemplate($correctInputTemplate, 'option[1]');
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$renderer->setElementTemplate($wrongInputTemplate, 'option[2]');
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$renderer->setElementTemplate($doubtScoreInputTemplate, 'option[3]');
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// 3 scores
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$form->addElement('text', 'option[1]', get_lang('Correct'), array('class' => 'span1', 'value' => '1'));
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$form->addElement('text', 'option[2]', get_lang('Wrong'), array('class' => 'span1', 'value' => '-0.5'));
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$form->addElement('text', 'option[3]', get_lang('DoubtScore'), array('class' => 'span1', 'value' => '0'));
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$form->addRule('option[1]', get_lang('ThisFieldIsRequired'), 'required');
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$form->addRule('option[2]', get_lang('ThisFieldIsRequired'), 'required');
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$form->addRule('option[3]', get_lang('ThisFieldIsRequired'), 'required');
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$form->addElement('hidden', 'options_count', 3);
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// Extra values True, false, Dont known
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if (!empty($this->extra)) {
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$scores = explode(':', $this->extra);
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if (!empty($scores)) {
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for ($i = 1; $i <= 3; $i++) {
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$defaults['option['.$i.']'] = $scores[$i - 1];
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}
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}
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}
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global $text;
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if ($obj_ex->edit_exercise_in_lp == true) {
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// setting the save button here and not in the question class.php
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$buttonGroup[] = $form->addButtonDelete(get_lang('LessAnswer'), 'lessAnswers', true);
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$buttonGroup[] = $form->addButtonCreate(get_lang('PlusAnswer'), 'moreAnswers', true);
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$buttonGroup[] = $form->addButtonSave($text, 'submitQuestion', true);
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$form->addGroup($buttonGroup);
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}
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if (!empty($this->id)) {
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$form->setDefaults($defaults);
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} else {
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$form->setDefaults($defaults);
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}
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$form->setConstants(array('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 = $nbrGoodAnswers = 0;
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$objAnswer = new Answer($this->id);
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$nb_answers = $form->getSubmitValue('nb_answers');
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$course_id = api_get_course_int_id();
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$correct = array();
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$options = Question::readQuestionOption($this->id, $course_id);
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if (!empty($options)) {
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foreach ($options as $optionData) {
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$id = $optionData['id'];
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unset($optionData['id']);
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Question::updateQuestionOption($id, $optionData, $course_id);
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}
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} else {
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for ($i = 1; $i <= 3; $i++) {
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$last_id = Question::saveQuestionOption(
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$this->id,
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$this->options[$i],
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$course_id,
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$i
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);
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$correct[$i] = $last_id;
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}
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}
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/* Getting quiz_question_options (true, false, doubt) because
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it's possible that there are more options in the future */
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$new_options = Question::readQuestionOption($this->id, $course_id);
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$sorted_by_position = array();
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foreach ($new_options as $item) {
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$sorted_by_position[$item['position']] = $item;
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}
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/* Saving quiz_question.extra values that has the correct scores of
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the true, false, doubt options registered in this format
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XX:YY:ZZZ where XX is a float score value.*/
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$extra_values = array();
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for ($i = 1; $i <= 3; $i++) {
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$score = trim($form -> getSubmitValue('option['.$i.']'));
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$extra_values[] = $score;
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}
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$this->setExtra(implode(':', $extra_values));
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for ($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['.$i.']'));
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$goodAnswer = trim($form->getSubmitValue('correct['.$i.']'));
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if (empty($options)) {
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//If this is the first time that the question is created when
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// change the default values from the form 1 and 2 by the correct "option id" registered
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$goodAnswer = $sorted_by_position[$goodAnswer]['id'];
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}
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$questionWeighting += $extra_values[0]; //By default 0 has the correct answers
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$objAnswer->createAnswer($answer, $goodAnswer, $comment, '', $i);
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}
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// saves the answers into the database
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$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, $counter = null, $score = null)
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{
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$header = parent::return_header($exercise, $counter, $score);
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$header .= '<table class="'.$this->question_table_class.'">
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<tr>
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<th>'.get_lang("Choice").'</th>
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<th>'. get_lang("ExpectedChoice").'</th>
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<th>'. get_lang("Answer").'</th>';
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if ($exercise->feedback_type != EXERCISE_FEEDBACK_TYPE_EXAM) {
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$header .= '<th>'.get_lang("Comment").'</th>';
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} else {
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$header .= '<th> </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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