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- <?php // $Id: uniquer_answer.class.php 10234 2006-12-26
- /*
- ==============================================================================
- Dokeos - elearning and course management software
-
- Copyright (c) 2004 Dokeos S.A.
- Copyright (c) 2003 Ghent University (UGent)
- Copyright (c) 2001 Universite catholique de Louvain (UCL)
- Copyright (c) Olivier Brouckaert
-
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
-
- 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 the GNU General Public License for more details.
-
- Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
- ==============================================================================
- */
- /**
- ==============================================================================
- * File containing the UNIQUE_ANSWER class.
- *
- * @author Eric Marguin
- * @package dokeos.exercise
- ==============================================================================
- */
- 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 {
-
- /**
- * Constructor
- */
- function UniqueAnswer(){
- parent::question();
- $this -> type = UNIQUE_ANSWER;
- }
-
- /**
- * function which redifines Question::createAnswersForm
- * @param the formvalidator instance
- * @param the answers number to display
- */
- function createAnswersForm ($form) {
-
- global $fck_attribute;
-
- $fck_attribute = array();
- $fck_attribute['Width'] = '300px';
- $fck_attribute['Height'] = '100px';
- $fck_attribute['ToolbarSet'] = 'Small';
- $fck_attribute['Config']['IMUploadPath'] = 'upload/test/';
- $fck_attribute['Config']['FlashUploadPath'] = 'upload/test/';
-
- $nb_answers = isset($_POST['nb_answers']) ? $_POST['nb_answers'] : 2;
- $nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
-
- $html='
- <div class="row">
- <div class="label">
- '.get_lang('Answers').'
- </div>
- <div class="formw">
- <table cellpadding="0" cellspacing="5">
- <tr bgcolor="#e6e6e6">
- <td>
- '.get_lang('Number').'
- </td>
- <td>
- '.get_lang('True').'
- </td>
- <td>
- '.get_lang('Answer').'
- </td>
- <td>
- '.get_lang('Comment').'
- </td>
- <td>
- '.get_lang('Weighting').'
- </td>
- <td width="0"></td>
- </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)
- {
-
- 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];
- }
-
- $form -> addElement ('html', '<tr><td>');
- $group = array();
- $puce = FormValidator :: createElement ('text', null,null,'value="'.$i.'"');
- $puce->freeze();
- $group[] = $puce;
- $group[] = FormValidator :: createElement ('radio', 'correct', null, null, $i);
-
- $group[] = FormValidator :: createElement ('html_editor', 'answer['.$i.']',null, 'style="vertical-align:middle"');
- $group[] = FormValidator :: createElement ('html_editor', 'comment['.$i.']',null, 'style="vertical-align:middle"');
- $group[] = FormValidator :: createElement ('text', 'weighting['.$i.']',null, 'style="vertical-align:middle" size="5" value="0"');
- $form -> addGroup($group, null, null, '</td><td width="0">');
-
- $form -> addElement ('html', '</td></tr>');
-
- }
-
- $form -> addElement ('html', '</table></div></div>');
- $group = array();
- $group[] = FormValidator :: createElement ('submit', 'lessAnswers', '-answ');
- $group[] = FormValidator :: createElement ('submit', 'moreAnswers', '+answ');
- $form -> addGroup($group);
-
- $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();
- echo '<script type="text/javascript">window.location.href="admin.php"</script>';
- }
-
- }
- endif;
- ?>
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