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- <?php
- /*
- DOKEOS - elearning and course management software
- For a full list of contributors, see documentation/credits.html
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- See "documentation/licence.html" more details.
- Contact:
- Dokeos
- Rue des Palais 44 Paleizenstraat
- B-1030 Brussels - Belgium
- Tel. +32 (2) 211 34 56
- */
- /**
- * File containing the UNIQUE_ANSWER class.
- * @package dokeos.exercise
- * @author Eric Marguin
- * @version $Id: admin.php 10680 2007-01-11 21:26:23Z pcool $
- */
- if(!class_exists('UniqueAnswer')):
- /**
- CLASS UNIQUE_ANSWER
- *
- * This class allows to instantiate an object of type UNIQUE_ANSWER (MULTIPLE CHOICE, UNIQUE ANSWER),
- * extending the class question
- *
- * @author Eric Marguin
- * @package dokeos.exercise
- **/
- class UniqueAnswer extends Question {
- static $typePicture = 'mcua.gif';
- static $explanationLangVar = 'UniqueSelect';
- /**
- * Constructor
- */
- function UniqueAnswer(){
- $this -> type = UNIQUE_ANSWER;
- }
- /**
- * function which redifines Question::createAnswersForm
- * @param the formvalidator instance
- * @param the answers number to display
- */
- function createAnswersForm ($form) {
- global $fck_attribute;
- $fck_attribute = array();
- $fck_attribute['Width'] = '348px';
- $fck_attribute['Height'] = '100px';
- $fck_attribute['ToolbarSet'] = 'Test';
- $fck_attribute['Config']['IMUploadPath'] = 'upload/test/';
- $fck_attribute['Config']['FlashUploadPath'] = 'upload/test/';
- $fck_attribute['Config']['InDocument'] = false;
- $fck_attribute['Config']['CreateDocumentDir'] = '../../courses/'.api_get_course_path().'/document/';
-
- //this line define how many question by default appear when creating a choice question
- $nb_answers = isset($_POST['nb_answers']) ? (int) $_POST['nb_answers'] : 4;
- $nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
- $html='
- <div class="row">
- <div class="label">
- '.get_lang('Answers').'
- </div>
- <div class="formw">
- <table class="data_table">
- <tr style="text-align: center;">
- <th>
- '.get_lang('Number').'
- </th>
- <th>
- '.get_lang('True').'
- </th>
- <th>
- '.get_lang('Answer').'
- </th>
- <th>
- '.get_lang('Comment').'
- </th>
- <th>
- '.get_lang('Weighting').'
- </th>
-
- </tr>';
- $form -> addElement ('html', $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;
- }
- }
- $form -> addElement('hidden', 'nb_answers');
- for($i = 1 ; $i <= $nb_answers ; ++$i)
- {
- $form -> addElement ('html', '<tr>');
- if(is_object($answer))
- {
- if($answer -> correct[$i])
- {
- $correct = $i;
- }
- $defaults['answer['.$i.']'] = $answer -> answer[$i];
- $defaults['comment['.$i.']'] = $answer -> comment[$i];
- $defaults['weighting['.$i.']'] = $answer -> weighting[$i];
- }
-
- $renderer = & $form->defaultRenderer();
- $renderer->setElementTemplate('<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>');
-
- $answer_number=$form->addElement('text', null,null,'value="'.$i.'"');
- $answer_number->freeze();
-
- $form->addElement('radio', 'correct', null, null, $i, 'style="margin-left: 0em;"');
- $form->addElement('html_editor', 'answer['.$i.']',null, 'style="vertical-align:middle"');
- $form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
- $form->addElement('html_editor', 'comment['.$i.']',null, 'style="vertical-align:middle"');
- $form->addElement('text', 'weighting['.$i.']',null, 'style="vertical-align:middle;margin-left: 0em;" size="5" value="0"');
- $form -> addElement ('html', '</tr>');
- }
- $form -> addElement ('html', '</table>');
- $form->addElement('submit', 'lessAnswers', get_lang('LessAnswer'));
- $form->addElement('submit', 'moreAnswers', get_lang('PlusAnswer'));
- $renderer->setElementTemplate('{element} ','lessAnswers');
- $renderer->setElementTemplate('{element}','moreAnswers');
- $form -> addElement ('html', '</div></div>');
-
- //We check the first radio button to be sure a radio button will be check
- if($correct==0){
- $correct=1;
- }
- $defaults['correct'] = $correct;
- $form -> setDefaults($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;
- $correct = $form -> getSubmitValue('correct');
- $objAnswer = new Answer($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.']'));
- $goodAnswer= ($correct == $i) ? true : false;
- if($goodAnswer)
- {
- $nbrGoodAnswers++;
- $weighting = abs($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();
- }
- }
- endif;
- ?>
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