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400 lines
14 KiB
400 lines
14 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* File containing the UNIQUE_ANSWER class.
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* @package chamilo.exercise
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* @author Eric Marguin
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*/
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/**
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* Code
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*/
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/**
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CLASS UNIQUE_ANSWER
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*
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* This class 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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*
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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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class UniqueAnswerNoOption extends Question
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{
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static $typePicture = 'mcuao.gif';
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static $explanationLangVar = 'UniqueAnswerNoOption';
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/**
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* Constructor
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*/
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function UniqueAnswerNoOption(){
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//this is highly important
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parent::question();
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$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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// 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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$comment_title = '<th width="500" >'.get_lang('Comment').'</th>';
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$feedback_title = '<th width="350px" >'.get_lang('Scenario').'</th>';
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}
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else {
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$comment_title = '<th>'.get_lang('Comment').'</th>';
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}
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$html='<table class="data_table">
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<tr style="text-align: center;">
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<th width="10px">
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'.get_lang('Number').'
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</th>
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<th width="10px" >
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'.get_lang('True').'
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</th>
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<th width="50%">
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'.get_lang('Answer').'
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</th>
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'.$comment_title.'
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'.$feedback_title.'
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<th width="60px">
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'.get_lang('Weighting').'
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</th>
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</tr>';
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$form -> addElement ('label', get_lang('Answers').'<br /> <img src="../img/fill_field.png">', $html);
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$defaults = array();
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$correct = 0;
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if (!empty($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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if ($_GET['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('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'correct');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'counter['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'answer['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'comment['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'weighting['.$i.']');
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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, 'style="vertical-align:middle"', $editor_config);
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$form->addElement('html_editor', 'comment['.$i.']', null, 'style="vertical-align:middle"', $editor_config);
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$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 -> addElement ('html', '<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('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'correct');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'counter['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'answer['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'comment['.$i.']');
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$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'weighting['.$i.']');
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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, 'style="vertical-align:middle"', $editor_config);
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$form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
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$form->addElement('html_editor', 'comment['.$i.']', null, 'style="vertical-align:middle"', $editor_config);
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//$form->addElement('select', 'destination'.$i, get_lang('SelectQuestion').' : ',$select_question,'multiple');
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$form->addElement('text', 'weighting['.$i.']', null, array('class' => "span1", 'value' => '0', 'readonly' =>'readonly'));
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$form->addElement ('html', '</tr>');
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$form -> addElement ('html', '</table>');
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$form -> addElement ('html', '<br />');
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$navigator_info = api_get_navigator();
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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' && $navigator_info['version']=='6') {
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$form->addElement('submit', 'moreAnswers', get_lang('PlusAnswer'),'class="btn plus"');
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$form->addElement('submit', 'lessAnswers', get_lang('LessAnswer'),'class="btn minus"');
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$form->addElement('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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$form->addElement('style_submit_button', 'lessAnswers', get_lang('LessAnswer'),'class="btn minus"');
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$form->addElement('style_submit_button', 'moreAnswers', get_lang('PlusAnswer'),'class="btn plus"');
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$form->addElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
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}
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}
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$renderer->setElementTemplate('{element} ','submitQuestion');
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$renderer->setElementTemplate('{element} ','lessAnswers');
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$renderer->setElementTemplate('{element} ','moreAnswers');
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$form -> addElement ('html', '</div></div>');
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//We check the first radio button to be sure a radio button will be check
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if ($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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$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 = $form -> getSubmitValue('scenario');
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//
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//$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, $score = null) {
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$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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