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406 lines
15 KiB
406 lines
15 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class UniqueAnswerNoOption
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* Allows to instantiate an object of type UNIQUE_ANSWER (MULTIPLE CHOICE, UNIQUE ANSWER),
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* extending the class question
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* @author Eric Marguin
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* @author Julio Montoya
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* @package chamilo.exercise
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*
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*/
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class UniqueAnswerNoOption extends Question
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{
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static $typePicture = 'mcuao.png';
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static $explanationLangVar = 'UniqueAnswerNoOption';
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/**
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* Constructor
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*/
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function UniqueAnswerNoOption()
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{
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//this is highly important
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parent::question();
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$this -> type = UNIQUE_ANSWER_NO_OPTION;
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$this -> isContent = $this-> getIsContent();
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}
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/**
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* function which redifines Question::createAnswersForm
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* @param the formvalidator instance
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* @param the answers number to display
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*/
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function createAnswersForm($form)
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{
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// getting the exercise list
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$obj_ex = $_SESSION['objExercise'];
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$editor_config = array('ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '125');
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//this line define how many question by default appear when creating a choice question
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$nb_answers = isset($_POST['nb_answers']) ? (int) $_POST['nb_answers'] : 3; // The previous default value was 2. See task #1759.
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$nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
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/*
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Types of Feedback
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$feedback_option[0]=get_lang('Feedback');
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$feedback_option[1]=get_lang('DirectFeedback');
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$feedback_option[2]=get_lang('NoFeedback');
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*/
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$feedback_title = '';
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$comment_title = '';
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if ($obj_ex->selectFeedbackType() == 1) {
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$editor_config['Width'] = '250';
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$editor_config['Height'] = '110';
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$comment_title = '<th width="50%" >' . get_lang('Comment') . '</th>';
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$feedback_title = '<th width="50%" >' . get_lang('Scenario') . '</th>';
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} else {
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$comment_title = '<th width="50%">' . get_lang('Comment') . '</th>';
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}
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$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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$html .= '<th width="50%">' . get_lang('Answer') . '</th>';
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$html .= $comment_title . $feedback_title;
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$html .= '<th>' . get_lang('Weighting') . '</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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$defaults = array();
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$correct = 0;
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$answer = false;
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if (!empty($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 = $answer->nbrAnswers;
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}
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}
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$temp_scenario = array();
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if ($nb_answers < 1) {
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$nb_answers = 1;
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Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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}
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$editQuestion = isset($_GET['editQuestion']) ? $_GET['editQuestion'] : false;
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if ($editQuestion) {
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//fixing $nb_answers
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$new_list = array();
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$count = 1;
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if (isset($_POST['lessAnswers'])) {
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if (!isset($_SESSION['less_answer'])) {
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$_SESSION['less_answer'] = $this->id;
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$nb_answers--;
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}
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}
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for ($k = 1; $k <= $nb_answers; ++$k) {
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if ($answer->position[$k] != '666') {
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$new_list[$count] = $count;
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$count++;
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}
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}
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} else {
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for ($k = 1; $k <= $nb_answers; ++$k) {
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$new_list[$k] = $k;
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}
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}
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$i = 1;
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//for ($k = 1 ; $k <= $real_nb_answers; $k++) {
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foreach ($new_list as $key) {
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$i = $key;
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$form->addElement('html', '<tr>');
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if (is_object($answer)) {
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if ($answer->position[$i] == 666) {
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//we set nothing
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} else {
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if ($answer->correct[$i]) {
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$correct = $i;
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}
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$answer_result = $answer->answer[$i];
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$weight_result = float_format($answer->weighting[$i], 1);
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if ($nb_answers == $i) {
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$weight_result = '0';
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}
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$defaults['answer[' . $i . ']'] = $answer_result;
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$defaults['comment[' . $i . ']'] = $answer->comment[$i];
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$defaults['weighting[' . $i . ']'] = $weight_result;
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$item_list = explode('@@', $answer->destination[$i]);
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$try = $item_list[0];
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$lp = $item_list[1];
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$list_dest = $item_list[2];
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$url = $item_list[3];
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if ($try == 0)
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$try_result = 0;
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else
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$try_result = 1;
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if ($url == 0)
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$url_result = '';
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else
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$url_result = $url;
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$temp_scenario['url' . $i] = $url_result;
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$temp_scenario['try' . $i] = $try_result;
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$temp_scenario['lp' . $i] = $lp;
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$temp_scenario['destination' . $i] = $list_dest;
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}
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}
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$defaults['scenario'] = $temp_scenario;
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$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'
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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[' . $i . ']'
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);
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'weighting[' . $i . ']'
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);
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$answer_number = $form->addElement('text', 'counter[' . $i . ']', null, 'value="' . $i . '"');
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$answer_number->freeze();
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$form->addElement('radio', 'correct', null, null, $i, 'class="checkbox" style="margin-left: 0em;"');
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$form->addElement('html_editor', 'answer[' . $i . ']', null, array(), $editor_config);
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$form->addElement('html_editor', 'comment[' . $i . ']', null, array(), $editor_config);
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$form->addElement('text', 'weighting[' . $i . ']', null, array('class' => "span1", 'value' => '0'));
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$form->addElement('html', '</tr>');
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$i++;
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}
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if (empty($this->id)) {
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$form->addElement('hidden', 'new_question', 1);
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}
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//Adding the "I don't know" question answer
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//if (empty($this -> id)) {
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$i = 666;
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$form->addHtml('<tr>');
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$defaults['answer[' . $i . ']'] = get_lang('DontKnow');
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$defaults['weighting[' . $i . ']'] = 0;
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$defaults['scenario'] = $temp_scenario;
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$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'
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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[' . $i . ']'
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);
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$renderer->setElementTemplate(
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'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
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'weighting[' . $i . ']'
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);
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$answer_number = $form->addElement('text', 'counter[' . $i . ']', null, 'value="-"');
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$answer_number->freeze();
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$form->addElement('hidden', 'position[' . $i . ']', '666');
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$form->addElement('radio', 'correct', null, null, $i, 'class="checkbox" style="margin-left: 0em;"');
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$form->addElement('html_editor', 'answer[' . $i . ']', null, array(), $editor_config);
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$form->addRule('answer[' . $i . ']', get_lang('ThisFieldIsRequired'), 'required');
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$form->addElement('html_editor', 'comment[' . $i . ']', null, array(), $editor_config);
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//$form->addElement('select', 'destination'.$i, get_lang('SelectQuestion').' : ',$select_question,'multiple');
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$form->addText("weighting[$i]", null, false, ['value' => 0, 'readonly' => 'readonly']);
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$form->addHTml('</tr>');
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$form->addHtml('</tbody></table>');
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$navigator_info = api_get_navigator();
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$buttonGroup = [];
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global $text, $class;
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//ie6 fix
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if ($obj_ex->edit_exercise_in_lp == true) {
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if ($navigator_info['name'] == 'Internet Explorer' && $navigator_info['version'] == '6') {
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$buttonGroup[] = $form->createElement('submit', 'moreAnswers','<i class="fa fa-plus"></i> '. get_lang('PlusAnswer'), 'class="btn btn-default"');
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$buttonGroup[] = $form->createElement('submit', 'lessAnswers', '<i class="fa fa-minus"></i> '.get_lang('LessAnswer'), 'class="btn btn-default"');
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$buttonGroup[] = $form->createElement('submit', 'submitQuestion', $text, 'class="' . $class . '"');
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} else {
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//setting the save button here and not in the question class.php
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$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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}
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$form->addGroup($buttonGroup);
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}
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//We check the first radio button to be sure a radio button will be check
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if ($correct == 0) {
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$correct = 1;
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}
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$defaults['correct'] = $correct;
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if (!empty($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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$form->addElement('hidden', 'nb_answers');
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$form->setConstants(array('nb_answers' => $nb_answers));
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}
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/**
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* Function which creates the form to create / edit the answers of the question
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* @param the formvalidator instance
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* @param the answers number to display
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*/
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function processAnswersCreation($form)
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{
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$questionWeighting = $nbrGoodAnswers = 0;
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$correct = $form -> getSubmitValue('correct');
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$objAnswer = new Answer($this->id);
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$nb_answers = $form -> getSubmitValue('nb_answers');
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$minus = 1;
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if ($form -> getSubmitValue('new_question')) {
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$minus = 0;
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}
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for ($i=1 ; $i <= $nb_answers - $minus; $i++) {
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$position = trim($form -> getSubmitValue('position['.$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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$weighting = trim($form -> getSubmitValue('weighting['.$i.']'));
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$scenario = $form -> getSubmitValue('scenario');
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//$list_destination = $form -> getSubmitValue('destination'.$i);
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//$destination_str = $form -> getSubmitValue('destination'.$i);
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$try = $scenario['try'.$i];
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$lp = $scenario['lp'.$i];
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$destination = $scenario['destination'.$i];
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$url = trim($scenario['url'.$i]);
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/*
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How we are going to parse the destination value
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here we parse the destination value which is a string
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1@@3@@2;4;4;@@http://www.chamilo.org
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where: try_again@@lp_id@@selected_questions@@url
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try_again = is 1 || 0
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lp_id = id of a learning path (0 if dont select)
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selected_questions= ids of questions
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url= an url
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*/
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/*
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$destination_str='';
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foreach ($list_destination as $destination_id)
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{
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$destination_str.=$destination_id.';';
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}*/
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$goodAnswer= ($correct == $i) ? true : false;
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if ($goodAnswer) {
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$nbrGoodAnswers++;
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$weighting = abs($weighting);
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if($weighting > 0) {
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$questionWeighting += $weighting;
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}
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}
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if (empty($try))
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$try=0;
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if (empty($lp)) {
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$lp=0;
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}
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if (empty($destination)) {
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$destination=0;
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}
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if ($url=='') {
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$url=0;
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}
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//1@@1;2;@@2;4;4;@@http://www.chamilo.org
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$dest= $try.'@@'.$lp.'@@'.$destination.'@@'.$url;
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$objAnswer -> createAnswer($answer,$goodAnswer,$comment,$weighting,$i,NULL,NULL,$dest);
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}
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//Create 666 answer
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$i = 666;
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$answer = trim($form -> getSubmitValue('answer['.$i.']'));
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$comment = trim($form -> getSubmitValue('comment['.$i.']'));
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$weighting = trim($form -> getSubmitValue('weighting['.$i.']'));
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$goodAnswer= ($correct == $i) ? true : false;
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$dest = '';
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$objAnswer -> createAnswer($answer,$goodAnswer,$comment,$weighting,$i,NULL,NULL,$dest);
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// saves the answers into the data base
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$objAnswer -> save();
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// sets the total weighting of the question
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$this -> updateWeighting($questionWeighting);
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$this -> save();
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}
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function return_header($feedback_type = null, $counter = null, $score = null)
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{
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$header = parent::return_header($feedback_type, $counter, $score);
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$header .= '<table class="'.$this->question_table_class .'">
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<tr>
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<th>'.get_lang("Choice").'</th>
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<th>'. get_lang("ExpectedChoice").'</th>
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<th>'. get_lang("Answer").'</th>';
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$header .= '<th>'.get_lang("Comment").'</th>';
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$header .= '</tr>';
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return $header;
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}
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}
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