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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * File containing the FillBlanks class.
- * @package chamilo.exercise
- * @author Eric Marguin
- * @author Julio Montoya Armas switchable fill in blank option added
- * @version $Id: admin.php 10680 2007-01-11 21:26:23Z pcool $
- */
- if(!class_exists('FillBlanks')):
- /**
- CLASS FillBlanks
- *
- * This class allows to instantiate an object of type MULTIPLE_ANSWER (MULTIPLE CHOICE, MULTIPLE ANSWER),
- * extending the class question
- *
- * @author Eric Marguin
- * @author Julio Montoya multiple fill in blank option added
- * @package dokeos.exercise
- **/
- class FillBlanks extends Question
- {
- static $typePicture = 'fill_in_blanks.gif';
- static $explanationLangVar = 'FillBlanks';
- /**
- * Constructor
- */
- function FillBlanks()
- {
- parent::question();
- $this -> type = FILL_IN_BLANKS;
- $this -> isContent = $this-> getIsContent();
- }
- /**
- * function which redifines Question::createAnswersForm
- * @param the formvalidator instance
- */
- function createAnswersForm ($form)
- {
- $defaults = array();
-
- if(!empty($this->id)) {
- $objAnswer = new answer($this->id);
- // the question is encoded like this
- // [A] B [C] D [E] F::10,10,10@1
- // number 1 before the "@" means that is a switchable fill in blank question
- // [A] B [C] D [E] F::10,10,10@ or [A] B [C] D [E] F::10,10,10
- // means that is a normal fill blank question
- $pre_array = explode('::', $objAnswer->selectAnswer(1));
- //make sure we only take the last bit to find special marks
- $sz = count($pre_array);
- $is_set_switchable = explode('@', $pre_array[$sz-1]);
- if ($is_set_switchable[1]) {
- $defaults['multiple_answer']=1;
- } else {
- $defaults['multiple_answer']=0;
- }
- //take the complete string except after the last '::'
- $defaults['answer'] = '';
- for($i=0;$i<($sz-1);$i++) {
- $defaults['answer'] .= $pre_array[$i];
- }
- $a_weightings = explode(',',$is_set_switchable[0]);
- } else {
- $defaults['answer'] = get_lang('DefaultTextInBlanks');
- }
- // javascript
- echo '
- <script type="text/javascript">
- function FCKeditor_OnComplete( editorInstance )
- {
- if (window.attachEvent) {
- editorInstance.EditorDocument.attachEvent("onkeyup", updateBlanks) ;
- } else {
- editorInstance.EditorDocument.addEventListener("keyup",updateBlanks,true);
- }
- }
- var firstTime = true;
- function updateBlanks()
- {
- if (firstTime) {
- field = document.getElementById("answer");
- var answer = field.value; }
- else {
- var oEditor = FCKeditorAPI.GetInstance(\'answer\');
- answer = oEditor.GetXHTML( true ) ;
- }
- var blanks = answer.match(/\[[^\]]*\]/g);
- var fields = "<div class=\"row\"><div class=\"label\">'.get_lang('Weighting').'</div><div class=\"formw\"><table>";
- if(blanks!=null){
- for(i=0 ; i<blanks.length ; i++){
- if(document.getElementById("weighting["+i+"]"))
- value = document.getElementById("weighting["+i+"]").value;
- else
- value = "10";
- fields += "<tr><td>"+blanks[i]+"</td><td><input style=\"margin-left: 0em;\" size=\"5\" value=\""+value+"\" type=\"text\" id=\"weighting["+i+"]\" name=\"weighting["+i+"]\" /></td></tr>";
- }
- }
- document.getElementById("blanks_weighting").innerHTML = fields + "</table></div></div>";
- if(firstTime){
- firstTime = false;
- ';
- if(count($a_weightings)>0)
- {
- foreach($a_weightings as $i=>$weighting)
- {
- echo 'document.getElementById("weighting['.$i.']").value = "'.$weighting.'";';
- }
- }
- echo '}
- }
- window.onload = updateBlanks;
- </script>
- ';
- // answer
- $form -> addElement ('html', '<br /><br /><div class="row"><div class="label"></div><div class="formw">'.get_lang('TypeTextBelow').', '.get_lang('And').' '.get_lang('UseTagForBlank').'</div></div>');
- $form -> addElement ('html_editor', 'answer', '<img src="../img/fill_field.png">','id="answer" cols="122" rows="6" onkeyup="javascript: updateBlanks(this);"', array('ToolbarSet' => 'TestQuestionDescription', 'Width' => '100%', 'Height' => '350'));
- $form -> addRule ('answer',get_lang('GiveText'),'required');
- $form -> addRule ('answer',get_lang('DefineBlanks'),'regex','/\[.*\]/');
- //added multiple answers
- $form -> addElement ('checkbox','multiple_answer','', get_lang('FillInBlankSwitchable'));
- $form -> addElement('html','<div id="blanks_weighting"></div>');
- global $text, $class;
- // setting the save button here and not in the question class.php
- $form->addElement('style_submit_button','submitQuestion',$text, 'class="'.$class.'"');
-
- if (!empty($this -> id)) {
- $form -> setDefaults($defaults);
- } else {
- if ($this -> isContent == 1) {
- $form -> setDefaults($defaults);
- }
- }
- }
- /**
- * abstract function which creates the form to create / edit the answers of the question
- * @param the formvalidator instance
- */
- function processAnswersCreation($form)
- {
- global $charset;
- $answer = $form -> getSubmitValue('answer');
- //Due the fckeditor transform the elements to their HTML value
- $answer = api_html_entity_decode($answer, ENT_QUOTES, $charset);
- //remove the :: eventually written by the user
- $answer = str_replace('::','',$answer);
- // get the blanks weightings
- $nb = preg_match_all('/\[[^\]]*\]/', $answer, $blanks);
- if(isset($_GET['editQuestion']))
- {
- $this -> weighting = 0;
- }
- if($nb>0)
- {
- $answer .= '::';
- for($i=0 ; $i<$nb ; ++$i)
- {
- $answer .= $form -> getSubmitValue('weighting['.$i.']').',';
- $this -> weighting += $form -> getSubmitValue('weighting['.$i.']');
- }
- $answer = api_substr($answer,0,-1);
- }
- $is_multiple = $form -> getSubmitValue('multiple_answer');
- $answer.='@'.$is_multiple;
- $this -> save();
- $objAnswer = new answer($this->id);
- $objAnswer->createAnswer($answer,0,'',0,'');
- $objAnswer->save();
- }
-
- function return_header($feedback_type, $counter = null) {
- parent::return_header($feedback_type, $counter);
- $header = '<table width="100%" border="0" cellspacing="3" cellpadding="3">
- <tr>
- <td> </td>
- </tr>
- <tr>
- <td><i><?php echo get_lang("Answer"); ?></i> </td>
- </tr>
- <tr>
- <td> </td>
- </tr>';
- return $header;
- }
- }
- endif;
- ?>
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