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245 lines
9.0 KiB
245 lines
9.0 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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*
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* Class Matching
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* Matching questions type class
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*
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* This class allows to instantiate an object of type 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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* @package chamilo.exercise
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*/
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class Matching extends Question
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{
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static $typePicture = 'matching.gif';
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static $explanationLangVar = 'Matching';
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/**
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* Constructor
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*/
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public function Matching()
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{
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parent::question();
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$this->type = MATCHING;
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$this->isContent = $this-> getIsContent();
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}
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/**
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* function which redefines Question::createAnswersForm
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* @param FormValidator $form
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*/
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public function createAnswersForm ($form)
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{
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$defaults = array();
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$navigator_info = api_get_navigator();
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$nb_matches = $nb_options = 2;
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if ($form -> isSubmitted()) {
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$nb_matches = $form -> getSubmitValue('nb_matches');
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$nb_options = $form -> getSubmitValue('nb_options');
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if(isset($_POST['lessMatches']))
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$nb_matches--;
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if(isset($_POST['moreMatches']))
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$nb_matches++;
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if(isset($_POST['lessOptions']))
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$nb_options--;
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if(isset($_POST['moreOptions']))
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$nb_options++;
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} else if(!empty($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) {
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$a_matches = $a_options = array();
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$nb_matches = $nb_options = 0;
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for($i=1 ; $i<=$answer->nbrAnswers ; $i++){
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if ($answer -> isCorrect($i)) {
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$nb_matches++;
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$defaults['answer['.$nb_matches.']'] = $answer -> selectAnswer($i);
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$defaults['weighting['.$nb_matches.']'] = float_format($answer -> selectWeighting($i),1);
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$defaults['matches['.$nb_matches.']'] = $answer -> correct[$i];
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} else {
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$nb_options++;
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$defaults['option['.$nb_options.']'] = $answer -> selectAnswer($i);
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}
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}
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}
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} else {
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$defaults['answer[1]'] = get_lang('DefaultMakeCorrespond1');
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$defaults['answer[2]'] = get_lang('DefaultMakeCorrespond2');
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$defaults['matches[2]'] = '2';
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$defaults['option[1]'] = get_lang('DefaultMatchingOptA');
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$defaults['option[2]'] = get_lang('DefaultMatchingOptB');
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}
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$a_matches = array();
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for($i=1 ; $i<=$nb_options ; ++$i) {
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$a_matches[$i] = chr(64+$i); // fill the array with A, B, C.....
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}
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$form -> addElement('hidden', 'nb_matches', $nb_matches);
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$form -> addElement('hidden', 'nb_options', $nb_options);
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// DISPLAY MATCHES
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$html='<table class="data_table">
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<tr>
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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="40%">
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'.get_lang('Answer').'
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</th>
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<th width="40%">
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'.get_lang('MatchesTo').'
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</th>
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<th width="50px">
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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('MakeCorrespond').'<br /> <img src="../img/fill_field.png">', $html);
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if ($nb_matches < 1) {
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$nb_matches = 1;
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Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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}
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for($i = 1 ; $i <= $nb_matches ; ++$i) {
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$form -> addElement ('html', '<tr><td>');
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$group = array();
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$puce = $form->createElement('text', null,null,'value="'.$i.'"');
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$puce->freeze();
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$group[] = $puce;
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$group[] = $form->createElement('text', 'answer['.$i.']',null, 'size="60" style="margin-left: 0em;"');
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$group[] = $form->createElement('select', 'matches['.$i.']',null,$a_matches);
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$group[] = $form->createElement('text', 'weighting['.$i.']',null, array('class' => 'span1', 'value' => 10));
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$form -> addGroup($group, null, null, '</td><td>');
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$form -> addElement ('html', '</td></tr>');
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}
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$form -> addElement ('html', '</table></div></div>');
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$group = array();
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if ($navigator_info['name']=='Internet Explorer' && $navigator_info['version']=='6') {
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$group[] = $form->createElement('submit', 'lessMatches', get_lang('DelElem'),'class="btn minus"');
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$group[] = $form->createElement('submit', 'moreMatches', get_lang('AddElem'),'class="btn plus"');
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} else {
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$group[] = $form->createElement('style_submit_button', 'moreMatches', get_lang('AddElem'),'class="btn plus"');
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$group[] = $form->createElement('style_submit_button', 'lessMatches', get_lang('DelElem'),'class="btn minus"');
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}
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$form -> addGroup($group);
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// DISPLAY OPTIONS
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$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="90%"
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'.get_lang('Answer').'
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</th>
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</tr>';
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//$form -> addElement ('html', $html);
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$form -> addElement ('label', null, $html);
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if ($nb_options < 1) {
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$nb_options = 1;
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Display::display_normal_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
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}
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for($i = 1 ; $i <= $nb_options ; ++$i) {
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$form -> addElement ('html', '<tr><td>');
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$group = array();
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$puce = $form->createElement('text', null,null,'value="'.chr(64+$i).'"');
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$puce->freeze();
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$group[] = $puce;
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$group[] = $form->createElement('text', 'option['.$i.']',null, array('class' =>'span6'));
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$form -> addGroup($group, null, null, '</td><td>');
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$form -> addElement ('html', '</td></tr>');
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}
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$form -> addElement ('html', '</table></div></div>');
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$group = array();
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global $text, $class;
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if ($navigator_info['name']=='Internet Explorer' && $navigator_info['version']=='6') {
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// setting the save button here and not in the question class.php
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$group[] = $form->createElement('submit','submitQuestion',$text, 'class="'.$class.'"');
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$group[] = $form->createElement('submit', 'lessOptions', get_lang('DelElem'),'class="minus"');
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$group[] = $form->createElement('submit', 'moreOptions',get_lang('AddElem'),'class="plus"');
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} else {
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// setting the save button here and not in the question class.php
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$group[] = $form->createElement('style_submit_button', 'lessOptions', get_lang('DelElem'),'class="minus"');
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$group[] = $form->createElement('style_submit_button', 'moreOptions',get_lang('AddElem'),' class="plus"');
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$group[] = $form->createElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
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}
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$form -> addGroup($group);
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if (!empty($this -> id)) {
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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(array('nb_matches' => $nb_matches,'nb_options' => $nb_options));
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}
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/**
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* abstract function which creates the form to create / edit the answers of the question
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* @param FormValidator $form
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*/
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public function processAnswersCreation($form)
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{
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$nb_matches = $form -> getSubmitValue('nb_matches');
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$nb_options = $form -> getSubmitValue('nb_options');
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$this -> weighting = 0;
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$objAnswer = new Answer($this->id);
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$position = 0;
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// insert the options
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for($i=1 ; $i<=$nb_options; ++$i) {
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$position++;
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$option = $form -> getSubmitValue('option['.$i.']');
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$objAnswer->createAnswer($option, 0, '', 0, $position);
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}
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// insert the answers
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for($i=1 ; $i<=$nb_matches ; ++$i) {
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$position++;
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$answer = $form -> getSubmitValue('answer['.$i.']');
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$matches = $form -> getSubmitValue('matches['.$i.']');
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$weighting = $form -> getSubmitValue('weighting['.$i.']');
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$this -> weighting += $weighting;
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$objAnswer->createAnswer($answer,$matches,'',$weighting,$position);
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}
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$objAnswer->save();
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$this->save();
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}
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/**
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* @param null $feedback_type
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* @param null $counter
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* @param null $score
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* @return string
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*/
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public function return_header($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="'.$this->question_table_class .'">';
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$header .= '<tr>
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<th>'.get_lang('ElementList').'</th>
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<th>'.get_lang('CorrespondsTo').'</th>
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</tr>';
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return $header;
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}
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}
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