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256 lines
7.3 KiB
256 lines
7.3 KiB
<?php
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/*
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DOKEOS - elearning and course management software
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For a full list of contributors, see documentation/credits.html
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See "documentation/licence.html" more details.
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Contact:
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Dokeos
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Rue des Palais 44 Paleizenstraat
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B-1030 Brussels - Belgium
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Tel. +32 (2) 211 34 56
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*/
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/**
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* File containing the Matching class.
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* @package dokeos.exercise
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* @author Eric Marguin
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* @version $Id: admin.php 10680 2007-01-11 21:26:23Z pcool $
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*/
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if(!class_exists('Matching')):
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/**
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CLASS Matching
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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 dokeos.exercise
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**/
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class Matching extends Question {
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static $typePicture = 'matching.gif';
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static $explanationLangVar = 'Matching';
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/**
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* Constructor
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*/
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function Matching(){
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parent::question();
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$this -> type = MATCHING;
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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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*/
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function createAnswersForm ($form) {
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$defaults = array();
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$nb_matches = $nb_options = 2;
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if($form -> isSubmitted())
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{
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$nb_matches = $form -> getSubmitValue('nb_matches');
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$nb_options = $form -> getSubmitValue('nb_options');
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if(isset($_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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}
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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 ; ++$i)
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{
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$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', $nb_options);
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////////////////////////
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// DISPLAY MATCHES ////
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//////////////////////
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$html='
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<div class="row">
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<div class="label">
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'.get_lang('Answers').' <br /> <img src="../img/fill_field.png">
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</div>
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<div class="formw">
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'.get_lang('MakeCorrespond').'
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<table class="data_table">
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<tr style="text-align: center">
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<th width="40px">
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'.get_lang('Number').'
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</th>
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<th>
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'.get_lang('Answer').'
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</th>
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<th>
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'.get_lang('MatchesTo').'
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</th>
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<th>
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'.get_lang('Weighting').'
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</th>
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</tr>';
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$form -> addElement ('html', $html);
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//$form -> addElement ('html_editor', 'answer','<img src="../img/fill_field.png">','id="answer" cols="122" rows="6" onkeyup="updateBlanks(this)"');
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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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$puce = FormValidator :: createElement ('text', null,null,'value="'.$i.'"');
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$puce->freeze();
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$group[] = $puce;
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$group[] = FormValidator :: createElement ('text', 'answer['.$i.']',null, 'size="40" style="margin-left: 0em;"');
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$group[] = FormValidator :: createElement ('select', 'matches['.$i.']',null,$a_matches);
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$group[] = FormValidator :: createElement ('text', 'weighting['.$i.']',null, 'style="vertical-align:middle;margin-left: 0em;" size="5" value="10"');
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$form -> addGroup($group, null, null, '</td><td width="0">');
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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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$group = array();
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$group[] = FormValidator :: createElement ('style_submit_button', 'lessMatches', get_lang('DelElem'),'class="minus"');
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$group[] = FormValidator :: createElement ('style_submit_button', 'moreMatches', get_lang('AddElem'),'class="plus"');
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$form -> addGroup($group);
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////////////////////////
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// DISPLAY OPTIONS ////
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//////////////////////
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$html='
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<div class="row">
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<div class="label">
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</div>
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<div class="formw"><br /><br />
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<table class="data_table">
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<tr style="text-align: center;">
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<th width="40px">
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'.get_lang('Number').'
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</th>
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<th>
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'.get_lang('Answer').'
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</th>
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</tr>';
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$form -> addElement ('html', $html);
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for($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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$puce = FormValidator :: createElement ('text', null,null,'value="'.chr(64+$i).'"');
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$puce->freeze();
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$group[] = $puce;
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$group[] = FormValidator :: createElement ('text', 'option['.$i.']',null, 'size="40" style="margin-left: 0em;"');
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$form -> addGroup($group, null, null, '</td><td width="0">');
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$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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$group[] = FormValidator :: createElement ('style_submit_button', 'lessOptions', get_lang('DelElem'),'class="minus"');
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$group[] = FormValidator :: createElement ('style_submit_button', 'moreOptions',get_lang('AddElem'),'class="plus"');
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global $text, $class;
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// setting the save button here and not in the question class.php
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$group[] = FormValidator :: createElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
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$form -> addGroup($group);
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$form -> setDefaults($defaults);
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$form->setConstants(array('nb_matches' => $nb_matches,'nb_options' => $nb_options));
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}
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/**
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* abstract function which creates the form to create / edit the answers of the question
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* @param the formvalidator instance
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*/
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function processAnswersCreation($form) {
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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 ; ++$i)
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{
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$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 ; ++$i)
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{
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$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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endif;
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?>
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