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381 lines
12 KiB
381 lines
12 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 UNIQUE_ANSWER 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('UniqueAnswer')):
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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 dokeos.exercise
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**/
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class UniqueAnswer extends Question {
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static $typePicture = 'mcua.gif';
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static $explanationLangVar = 'UniqueSelect';
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/**
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* Constructor
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*/
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function UniqueAnswer(){
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//this is highly important
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parent::question();
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$this -> type = UNIQUE_ANSWER;
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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) $_POST['nb_answers'] : 2;
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$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()==0) {
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$comment_title = '<th>'.get_lang('Comment').'</th>';
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} elseif ($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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$html='
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<div class="row">
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<div class="label">
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'.get_lang('Answers').' <br /> <img src="../img/fill_field.png">
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</div>
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<div class="formw">
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<table class="data_table">
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<tr style="text-align: center;">
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<th width="10px">
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'.get_lang('Number').'
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</th>
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<th width="10px" >
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'.get_lang('True').'
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</th>
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<th width="45%">
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'.get_lang('Answer').'
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</th>
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'.$comment_title.'
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'.$feedback_title.'
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<th width="20px">
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'.get_lang('Weighting').'
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</th>
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</tr>';
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$form -> addElement ('html', $html);
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$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 && !$form->isSubmitted())
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{
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$nb_answers = $answer->nbrAnswers;
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}
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}
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$form -> addElement('hidden', 'nb_answers');
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//Feedback SELECT
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$question_list=$obj_ex->selectQuestionList();
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$select_question=array();
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$select_question[0]=get_lang('SelectTargetQuestion');
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require_once('../newscorm/learnpathList.class.php');
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require_once(api_get_path(LIBRARY_PATH).'text.lib.php');
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if (is_array($question_list)) {
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foreach ($question_list as $key=>$questionid) {
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$question = Question::read($questionid);
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$select_question[$questionid]='Q'.$key.' :'.cut($question->selectTitle(),20);
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}
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}
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$select_question[-1]=get_lang('ExitTest');
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//LP SELECT
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require_once('../newscorm/learnpathList.class.php');
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//require_once('../newscorm/learnpath.class.php');
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//require_once('../newscorm/learnpathItem.class.php');
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$list = new LearnpathList(api_get_user_id());
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$flat_list = $list->get_flat_list();
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$select_lp_id=array();
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$select_lp_id[0]=get_lang('SelectTargetLP');
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foreach ($flat_list as $id => $details)
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{
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$select_lp_id[$id] = cut($details['lp_name'],20);
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}
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$temp_scenario=array();
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for($i = 1 ; $i <= $nb_answers ; ++$i)
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{
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$form -> addElement ('html', '<tr>');
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if(is_object($answer))
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{
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if($answer -> correct[$i])
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{
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$correct = $i;
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}
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$defaults['answer['.$i.']'] = $answer -> answer[$i];
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$defaults['comment['.$i.']'] = $answer -> comment[$i];
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$defaults['weighting['.$i.']'] = float_format($answer -> weighting[$i], 1);
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$item_list=explode('@@',$answer -> destination[$i]);
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//echo '<pre>'; print_r($item_list);
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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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/*$pre_list_destination=explode(';',$list_dest);
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$list_destination=array();
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foreach($pre_list_destination as $value)
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{
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$list_destination[]=$value;
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}
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$defaults['destination'.$i]=$list_destination;
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*/
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//$defaults['destination'.$i] = $list_destination;
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}else {
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$defaults['answer[1]'] = get_lang('langDefaultUniqueAnswer1');
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$defaults['weighting[1]'] = 10;
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$defaults['answer[2]'] = get_lang('langDefaultUniqueAnswer2');
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$defaults['weighting[2]'] = 0;
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$temp_scenario['destination'.$i] = array('0');
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$temp_scenario['lp'.$i] = array('0');
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//$defaults['scenario']
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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>');
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$answer_number=$form->addElement('text', null,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->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
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if ($obj_ex->selectFeedbackType()==0) // feedback
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$form->addElement('html_editor', 'comment['.$i.']', null, 'style="vertical-align:middle"', $editor_config);
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elseif ($obj_ex->selectFeedbackType()==1) // direct feedback
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{
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$form->addElement('html_editor', 'comment['.$i.']', null, 'style="vertical-align:middle"', $editor_config);
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//Adding extra feedback fields
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$group = array();
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$group['try'.$i] =&$form->createElement('checkbox', 'try'.$i,get_lang('TryAgain').': ' );
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$group['lp'.$i] =&$form->createElement('select', 'lp'.$i,get_lang('SeeTheory').': ',$select_lp_id);
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$group['destination'.$i]=&$form->createElement('select', 'destination'.$i, get_lang('GoToQuestion').': ' ,$select_question);
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$group['url'.$i] =&$form->createElement('text', 'url'.$i,get_lang('Other').': ',array('size'=>'25px'));
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$form -> addGroup($group, 'scenario', 'scenario');
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$renderer->setGroupElementTemplate('<div class="exercise_scenario_label">{label}</div><div class="exercise_scenario_element">{element}</div>','scenario');
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}
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//$form->addElement('select', 'destination'.$i, get_lang('SelectQuestion').' : ',$select_question,'multiple');
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$form->addElement('text', 'weighting['.$i.']',null, 'style="vertical-align:middle;margin-left: 0em;" size="5" value="10"');
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$form -> addElement ('html', '</tr>');
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}
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$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, $class;
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//ie6 fix
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if ($navigator_info['name']=='Internet Explorer' && $navigator_info['version']=='6') {
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$form->addElement('submit', 'lessAnswers', get_lang('LessAnswer'),'class="minus"');
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$form->addElement('submit', 'moreAnswers', get_lang('PlusAnswer'),'class="plus"');
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$form->addElement('submit','submitQuestion',$text, 'class="'.$class.'"');
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} else {
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$form->addElement('style_submit_button', 'lessAnswers', get_lang('LessAnswer'),'class="minus"');
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$form->addElement('style_submit_button', 'moreAnswers', get_lang('PlusAnswer'),'class="plus"');
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// setting the save button here and not in the question class.php
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$form->addElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
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}
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$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'] = $correct;
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$form -> setDefaults($defaults);
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$form->setConstants(array('nb_answers' => $nb_answers));
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}
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/**
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* abstract function which creates the form to create / edit the answers of the question
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* @param the formvalidator instance
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* @param the answers number to display
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*/
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function processAnswersCreation($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 = $form -> getSubmitValue('nb_answers');
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for($i=1 ; $i <= $nb_answers ; $i++)
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{
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$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= $form -> getSubmitValue('scenario');
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echo '<pre>';
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//$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'.$i]);
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/*
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How we are going to parse the destination value
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here we parse the destination value which is a string
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1@@3@@2;4;4;@@http://www.dokeos.com
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where: try_again@@lp_id@@selected_questions@@url
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try_again = is 1 || 0
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lp_id = id of a learning path (0 if dont select)
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selected_questions= ids of questions
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url= an url
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*/
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/*
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$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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{
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$nbrGoodAnswers++;
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$weighting = abs($weighting);
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if($weighting > 0)
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{
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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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{
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$lp=0;
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}
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if (empty($destination))
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{
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$destination=0;
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}
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if ($url=='')
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{
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$url=0;
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}
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//1@@1;2;@@2;4;4;@@http://www.dokeos.com
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$dest= $try.'@@'.$lp.'@@'.$destination.'@@'.$url;
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$objAnswer -> createAnswer($answer,$goodAnswer,$comment,$weighting,$i,NULL,NULL,$dest);
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}
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// saves the answers into the data base
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$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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}
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endif;
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?>
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