You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
209 lines
7.7 KiB
209 lines
7.7 KiB
<?php
|
|
/* For licensing terms, see /license.txt */
|
|
/**
|
|
CLASS MultipleAnswer
|
|
*
|
|
* This class allows to instantiate an object of type MULTIPLE_ANSWER (MULTIPLE CHOICE, MULTIPLE ANSWER),
|
|
* extending the class question
|
|
*
|
|
* @author Eric Marguin
|
|
* @package chamilo.exercise
|
|
**/
|
|
class MultipleAnswer extends Question
|
|
{
|
|
static $typePicture = 'mcma.gif';
|
|
static $explanationLangVar = 'MultipleSelect';
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
function MultipleAnswer()
|
|
{
|
|
parent::question();
|
|
$this -> type = MULTIPLE_ANSWER;
|
|
$this -> isContent = $this-> getIsContent();
|
|
}
|
|
|
|
/**
|
|
* function which redifines Question::createAnswersForm
|
|
* @param the formvalidator instance
|
|
* @param the answers number to display
|
|
*/
|
|
function createAnswersForm ($form)
|
|
{
|
|
|
|
$nb_answers = isset($_POST['nb_answers']) ? $_POST['nb_answers'] : 4; // The previous default value was 2. See task #1759.
|
|
$nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
|
|
|
|
$obj_ex = $_SESSION['objExercise'];
|
|
|
|
$html='<table class="data_table">
|
|
<tr>
|
|
<th width="10px">
|
|
'.get_lang('Number').'
|
|
</th>
|
|
<th width="10px">
|
|
'.get_lang('True').'
|
|
</th>
|
|
<th width="50%">
|
|
'.get_lang('Answer').'
|
|
</th>';
|
|
// show column comment when feedback is enable
|
|
$html .='<th>
|
|
'.get_lang('Comment').'
|
|
</th>';
|
|
$html .= '<th width="50px">
|
|
'.get_lang('Weighting').'
|
|
</th>
|
|
</tr>';
|
|
$form -> addElement ('label', get_lang('Answers').'<br /> <img src="../img/fill_field.png">', $html);
|
|
|
|
$defaults = array();
|
|
$correct = 0;
|
|
if(!empty($this -> id)) {
|
|
$answer = new Answer($this -> id);
|
|
$answer -> read();
|
|
if(count($answer->nbrAnswers)>0 && !$form->isSubmitted()) {
|
|
$nb_answers = $answer->nbrAnswers;
|
|
}
|
|
}
|
|
|
|
$form -> addElement('hidden', 'nb_answers');
|
|
$boxes_names = array();
|
|
|
|
if ($nb_answers < 1) {
|
|
$nb_answers = 1;
|
|
Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
|
|
}
|
|
|
|
for ($i = 1 ; $i <= $nb_answers ; ++$i) {
|
|
if(is_object($answer)) {
|
|
$defaults['answer['.$i.']'] = $answer -> answer[$i];
|
|
$defaults['comment['.$i.']'] = $answer -> comment[$i];
|
|
$defaults['weighting['.$i.']'] = float_format($answer -> weighting[$i], 1);
|
|
$defaults['correct['.$i.']'] = $answer -> correct[$i];
|
|
} else {
|
|
$defaults['answer[1]'] = get_lang('DefaultMultipleAnswer2');
|
|
$defaults['comment[1]'] = get_lang('DefaultMultipleComment2');
|
|
$defaults['correct[1]'] = true;
|
|
$defaults['weighting[1]'] = 10;
|
|
|
|
$defaults['answer[2]'] = get_lang('DefaultMultipleAnswer1');
|
|
$defaults['comment[2]'] = get_lang('DefaultMultipleComment1');
|
|
$defaults['correct[2]'] = false;
|
|
$defaults['weighting[2]'] = -5;
|
|
}
|
|
$renderer = & $form->defaultRenderer();
|
|
|
|
$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'correct['.$i.']');
|
|
$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'counter['.$i.']');
|
|
$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'answer['.$i.']');
|
|
$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'comment['.$i.']');
|
|
$renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>', 'weighting['.$i.']');
|
|
|
|
$answer_number=$form->addElement('text', 'counter['.$i.']', null, 'value="'.$i.'"');
|
|
$answer_number->freeze();
|
|
|
|
$form->addElement('checkbox', 'correct['.$i.']', null, null, 'class="checkbox" style="margin-left: 0em;"');
|
|
$boxes_names[] = 'correct['.$i.']';
|
|
|
|
$form->addElement('html_editor', 'answer['.$i.']',null, 'style="vertical-align:middle"', array('ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '100'));
|
|
$form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
|
|
|
|
$form->addElement('html_editor', 'comment['.$i.']',null, 'style="vertical-align:middle"', array('ToolbarSet' => 'TestProposedAnswer', 'Width' => '100%', 'Height' => '100'));
|
|
|
|
$form->addElement('text', 'weighting['.$i.']',null, array('class' => "span1", 'value' => '0'));
|
|
$form -> addElement ('html', '</tr>');
|
|
}
|
|
$form -> addElement ('html', '</table>');
|
|
$form -> addElement ('html', '<br />');
|
|
|
|
$form -> add_multiple_required_rule ($boxes_names , get_lang('ChooseAtLeastOneCheckbox') , 'multiple_required');
|
|
|
|
|
|
$navigator_info = api_get_navigator();
|
|
|
|
global $text, $class;
|
|
if ($obj_ex->edit_exercise_in_lp == true) {
|
|
//ie6 fix
|
|
if ($navigator_info['name']=='Internet Explorer' && $navigator_info['version']=='6') {
|
|
$form->addElement('submit', 'lessAnswers', get_lang('LessAnswer'),'class="btn minus"');
|
|
$form->addElement('submit', 'moreAnswers', get_lang('PlusAnswer'),'class="btn plus"');
|
|
$form->addElement('submit','submitQuestion',$text, 'class="'.$class.'"');
|
|
} else {
|
|
// setting the save button here and not in the question class.php
|
|
$form->addElement('style_submit_button', 'lessAnswers', get_lang('LessAnswer'),'class="btn minus"');
|
|
$form->addElement('style_submit_button', 'moreAnswers', get_lang('PlusAnswer'),'class="btn plus"');
|
|
$form->addElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
|
|
}
|
|
}
|
|
$renderer->setElementTemplate('{element} ','lessAnswers');
|
|
$renderer->setElementTemplate('{element} ','submitQuestion');
|
|
$renderer->setElementTemplate('{element} ','moreAnswers');
|
|
$form -> addElement ('html', '</div></div>');
|
|
|
|
$defaults['correct'] = $correct;
|
|
|
|
if (!empty($this -> id)) {
|
|
$form -> setDefaults($defaults);
|
|
} else {
|
|
if ($this -> isContent == 1) {
|
|
$form -> setDefaults($defaults);
|
|
}
|
|
}
|
|
$form->setConstants(array('nb_answers' => $nb_answers));
|
|
}
|
|
|
|
|
|
/**
|
|
* abstract function which creates the form to create / edit the answers of the question
|
|
* @param the formvalidator instance
|
|
* @param the answers number to display
|
|
*/
|
|
function processAnswersCreation($form) {
|
|
|
|
$questionWeighting = $nbrGoodAnswers = 0;
|
|
$objAnswer = new Answer($this->id);
|
|
$nb_answers = $form->getSubmitValue('nb_answers');
|
|
|
|
for($i=1 ; $i <= $nb_answers ; $i++) {
|
|
$answer = trim($form -> getSubmitValue('answer['.$i.']'));
|
|
$comment = trim($form -> getSubmitValue('comment['.$i.']'));
|
|
$weighting = trim($form -> getSubmitValue('weighting['.$i.']'));
|
|
$goodAnswer = trim($form -> getSubmitValue('correct['.$i.']'));
|
|
|
|
if ($goodAnswer) {
|
|
$weighting = abs($weighting);
|
|
} else {
|
|
$weighting = abs($weighting);
|
|
$weighting = -$weighting;
|
|
}
|
|
if($weighting > 0) {
|
|
$questionWeighting += $weighting;
|
|
}
|
|
$objAnswer -> createAnswer($answer,$goodAnswer,$comment,$weighting,$i);
|
|
}
|
|
|
|
// saves the answers into the data base
|
|
$objAnswer -> save();
|
|
|
|
// sets the total weighting of the question
|
|
$this->updateWeighting($questionWeighting);
|
|
$this->save();
|
|
}
|
|
|
|
function return_header($feedback_type = null, $counter = null, $score = null)
|
|
{
|
|
$header = parent::return_header($feedback_type, $counter, $score);
|
|
$header .= '<table class="'.$this->question_table_class .'">
|
|
<tr>
|
|
<th>'.get_lang("Choice").'</th>
|
|
<th>'. get_lang("ExpectedChoice").'</th>
|
|
<th>'. get_lang("Answer").'</th>';
|
|
$header .= '<th>'.get_lang("Comment").'</th>';
|
|
$header .= '</tr>';
|
|
return $header;
|
|
}
|
|
|
|
|
|
}
|
|
|