+++ /dev/null
-<?php // $id$
-
-// note: modified from the original filter/mediaplugin/filter.php
-
-// given a href for a movie or sound file, it returns an appropriate tag
-/**
- * @package questionbank
- * @subpackage importexport
- */
-function custom_mediaplugin_filter($text, $width = null, $height = null) {
- global $CFG;
- if (is_null($width) || $width == 0) {
- $usedefaults = true;
- $width = 400;
- $height = 300;
- } else {
- $usedefaults = false;
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_mp3)) {
- $search = '/<a(.*?)href=\"([^<]+)\.mp3\"([^>]*)>(.*?)<\/a>/i';
-
- $replace = '\\0 <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"';
- $replace .= ' codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" ';
- $replace .= ' width="35" height="18" id="mp3player" align="">';
- $replace .= " <param name=movie value=\"$CFG->wwwroot/filter/mediaplugin/mp3player.swf?src=\\2.mp3\">";
- $replace .= ' <param name=quality value=high>';
- $replace .= ' <param name=bgcolor value="#333333">';
- $replace .= " <embed src=\"$CFG->wwwroot/filter/mediaplugin/mp3player.swf?src=\\2.mp3\" ";
- $replace .= " quality=high bgcolor=\"#333333\" width=\"35\" height=\"18\" name=\"mp3player\" ";
- $replace .= ' type="application/x-shockwave-flash" ';
- $replace .= ' pluginspage="http://www.macromedia.com/go/getflashplayer">';
- $replace .= '</embed>';
- $replace .= '</object> ';
-
- $text = preg_replace($search, $replace, $text);
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_swf)) {
- $search = '/<a(.*?)href=\"([^<]+)\.swf\"([^>]*)>(.*?)<\/a>/i';
- $replace = '\\0<object '.
- 'type="application/x-shockwave-flash" ' .
- 'data="\\2.swf" ' .
- 'width="' . $width . '" ' .
- 'height="' . $height . '"> ' .
- '<param name="movie" value="\\2.swf" /> ' .
- '<param name="wmode" value="transparent" />' .
- '</object>';
-
-
-/* $replace = '\\0<p class="mediaplugin"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"';
- $replace .= ' codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" ';
- $replace .= ' width="' . $width . '" height="' . $height . '" id="mp3player" align="">';
- $replace .= " <param name=movie value=\"\\2.swf\">";
- $replace .= ' <param name=quality value=high>';
- $replace .= " <embed src=\"\\2.swf\" ";
- $replace .= " quality=high width=\"$width\" height=\"$height\" name=\"flashfilter\" ";
- $replace .= ' type="application/x-shockwave-flash" ';
- $replace .= ' pluginspage="http://www.macromedia.com/go/getflashplayer">';
- $replace .= '</embed>';
- $replace .= '</object></p>';*/
-
- $text = preg_replace($search, $replace, $text);
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_mov)) {
- $search = '/<a(.*?)href=\"([^<]+)\.mov\"([^>]*)>(.*?)<\/a>/i';
-
- $replace = '\\0<p class="mediaplugin"><object classid="CLSID:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"';
- $replace .= ' codebase="http://www.apple.com/qtactivex/qtplugin.cab" ';
- $replace .= ' height="' . $height . '" width="' . $width . '"';
- $replace .= ' id="quicktime" align="" type="application/x-oleobject">';
- $replace .= "<param name=\"src\" value=\"\\2.mov\" />";
- $replace .= '<param name="autoplay" value=false />';
- $replace .= '<param name="loop" value=true />';
- $replace .= '<param name="controller" value=true />';
- $replace .= '<param name="scale" value="aspect" />';
- $replace .= "\n<embed src=\"\\2.mov\" name=\"quicktime\" type=\"video/quicktime\" ";
- $replace .= ' height="' . $height . '" width="' . $width . '" scale="aspect" ';
- $replace .= ' autoplay="false" controller="true" loop="true" ';
- $replace .= ' pluginspage="http://quicktime.apple.com/">';
- $replace .= '</embed>';
- $replace .= '</object> ';
-
- $text = preg_replace($search, $replace, $text);
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_wmv)) {
- $search = '/<a(.*?)href=\"([^<]+)\.wmv\"([^>]*)>(.*?)<\/a>/i';
-
- $replace = '\\0<p class="mediaplugin"><object classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95"';
- $replace .= ' codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701" ';
- $replace .= ' standby="Loading Microsoft? Windows? Media Player components..." ';
- $replace .= ' id="msplayer" align="" type="application/x-oleobject">';
- $replace .= "<param name=\"Filename\" value=\"\\2.wmv\">";
- $replace .= '<param name="ShowControls" value=true />';
- $replace .= '<param name="AutoRewind" value=true />';
- $replace .= '<param name="AutoStart" value=false />';
- $replace .= '<param name="Autosize" value=true />';
- $replace .= '<param name="EnableContextMenu" value=true />';
- $replace .= '<param name="TransparentAtStart" value=false />';
- $replace .= '<param name="AnimationAtStart" value=false />';
- $replace .= '<param name="ShowGotoBar" value=false />';
- $replace .= '<param name="EnableFullScreenControls" value=true />';
- $replace .= "\n<embed src=\"\\2.wmv\" name=\"msplayer\" type=\"video/x-ms\" ";
- $replace .= ' ShowControls="1" AutoRewind="1" AutoStart="0" Autosize="0" EnableContextMenu="1"';
- $replace .= ' TransparentAtStart="0" AnimationAtStart="0" ShowGotoBar="0" EnableFullScreenControls="1"';
- $replace .= ' pluginspage="http://www.microsoft.com/Windows/Downloads/Contents/Products/MediaPlayer/">';
- $replace .= '</embed>';
- $replace .= '</object> ';
-
- $text = preg_replace($search, $replace, $text);
- }
-
- if ($usedefaults) {
- $width = 240;
- $height = 180;
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_mpg)) {
- $search = '/<a(.*?)href=\"([^<]+)\.(mpe?g)\"([^>]*)>(.*?)<\/a>/i';
-
- $replace = '\\0<p class="mediaplugin"><object width="' . $width . '" height="' . $height . '">';
- $replace .= '<param name="src" value="\\2.\\3">';
- $replace .= '<param name="controller" value="true">';
- $replace .= '<param name="autoplay" value="false">';
- $replace .= '<embed src="\\2.\\3" width="' . $width . '" height="' . $height . '" controller="true" autoplay="false"> </embed>';
- $replace .= '</object></p>';
-
- $text = preg_replace($search, $replace, $text);
- }
-
- if (empty($CFG->filter_mediaplugin_ignore_avi)) {
- $search = '/<a(.*?)href=\"([^<]+)\.avi\"([^>]*)>(.*?)<\/a>/i';
-
- $replace = '\\0<p class="mediaplugin"><object width="' . $width . '" height="' . $height . '">';
- $replace .= '<param name="src" value="\\2.avi">';
- $replace .= '<param name="controller" value="true">';
- $replace .= '<param name="autoplay" value="false">';
- $replace .= '<embed src="\\2.avi" width="' . $width . '" height="' . $height . '" controller="true" autoplay="false"> </embed>';
- $replace .= '</object> ';
-
- $text = preg_replace($search, $replace, $text);
- }
- return $text;
-}
-
-
-?>
+++ /dev/null
-<?php // $Id$
-
-require_once("$CFG->dirroot/question/format/qti2/qt_common.php");
-////////////////////////////////////////////////////////////////////////////
-/// IMS QTI 2.0 FORMAT
-///
-/// HISTORY: created 28.01.2005 brian@mediagonal.ch
-////////////////////////////////////////////////////////////////////////////
-
-// Based on format.php, included by ../../import.php
-/**
- * @package questionbank
- * @subpackage importexport
- */
-define('CLOZE_TRAILING_TEXT_ID', 9999999);
-
-class qformat_qti2 extends qformat_default {
-
- var $lang;
-
- function provide_export() {
- return true;
- }
-
- function indent_xhtml($source, $indenter = ' ') {
- // xml tidier-upper
- // (c) Ari Koivula http://ventionline.com
-
- // Remove all pre-existing formatting.
- // Remove all newlines.
- $source = str_replace("\n", '', $source);
- $source = str_replace("\r", '', $source);
- // Remove all tabs.
- $source = str_replace("\t", '', $source);
- // Remove all space after ">" and before "<".
- $source = ereg_replace(">( )*", ">", $source);
- $source = ereg_replace("( )*<", "<", $source);
-
- // Iterate through the source.
- $level = 0;
- $source_len = strlen($source);
- $pt = 0;
- while ($pt < $source_len) {
- if ($source{$pt} === '<') {
- // We have entered a tag.
- // Remember the point where the tag starts.
- $started_at = $pt;
- $tag_level = 1;
- // If the second letter of the tag is "/", assume its an ending tag.
- if ($source{$pt+1} === '/') {
- $tag_level = -1;
- }
- // If the second letter of the tag is "!", assume its an "invisible" tag.
- if ($source{$pt+1} === '!') {
- $tag_level = 0;
- }
- // Iterate throught the source until the end of tag.
- while ($source{$pt} !== '>') {
- $pt++;
- }
- // If the second last letter is "/", assume its a self ending tag.
- if ($source{$pt-1} === '/') {
- $tag_level = 0;
- }
- $tag_lenght = $pt+1-$started_at;
-
- // Decide the level of indention for this tag.
- // If this was an ending tag, decrease indent level for this tag..
- if ($tag_level === -1) {
- $level--;
- }
- // Place the tag in an array with proper indention.
- $array[] = str_repeat($indenter, $level).substr($source, $started_at, $tag_lenght);
- // If this was a starting tag, increase the indent level after this tag.
- if ($tag_level === 1) {
- $level++;
- }
- // if it was a self closing tag, dont do shit.
- }
- // Were out of the tag.
- // If next letter exists...
- if (($pt+1) < $source_len) {
- // ... and its not an "<".
- if ($source{$pt+1} !== '<') {
- $started_at = $pt+1;
- // Iterate through the source until the start of new tag or until we reach the end of file.
- while ($source{$pt} !== '<' && $pt < $source_len) {
- $pt++;
- }
- // If we found a "<" (we didnt find the end of file)
- if ($source{$pt} === '<') {
- $tag_lenght = $pt-$started_at;
- // Place the stuff in an array with proper indention.
- $array[] = str_repeat($indenter, $level).substr($source, $started_at, $tag_lenght);
- }
- // If the next tag is "<", just advance pointer and let the tag indenter take care of it.
- } else {
- $pt++;
- }
- // If the next letter doesnt exist... Were done... well, almost..
- } else {
- break;
- }
- }
- // Replace old source with the new one we just collected into our array.
- $source = implode($array, "\n");
- return $source;
- }
-
- function importpreprocess() {
- global $CFG;
-
- print_error('cannotimportformat', '',
- "$CFG->wwwroot/mod/quiz/import.php?category=$category->id");
- }
-
- function exportpreprocess() {
- global $CFG;
-
- require_once("{$CFG->libdir}/smarty/Smarty.class.php");
-
- // assign the language for the export: by parameter, SESSION, USER, or the default of 'en'
- $lang = current_language();
- $this->lang = $lang;
-
- return parent::exportpreprocess();
- }
-
-
- function export_file_extension() {
- // override default type so extension is .xml
-
- return ".zip";
- }
-
- function get_qtype( $type_id ) {
- // translates question type code number into actual name
-
- switch( $type_id ) {
- case TRUEFALSE:
- $name = 'truefalse';
- break;
- case MULTICHOICE:
- $name = 'multichoice';
- break;
- case SHORTANSWER:
- $name = 'shortanswer';
- break;
- case NUMERICAL:
- $name = 'numerical';
- break;
- case MATCH:
- $name = 'matching';
- break;
- case DESCRIPTION:
- $name = 'description';
- break;
- case MULTIANSWER:
- $name = 'multianswer';
- break;
- default:
- $name = 'Unknown';
- }
- return $name;
- }
-
- function writetext( $raw ) {
- // generates <text></text> tags, processing raw text therein
-
- // for now, don't allow any additional tags in text
- // otherwise xml rules would probably get broken
- $raw = strip_tags( $raw );
-
- return "<text>$raw</text>\n";
- }
-
-
-/**
- * flattens $object['media'], copies $object['media'] to $path, and sets $object['mediamimetype']
- *
- * @param array &$object containing a field 'media'
- * @param string $path the full path name to where the media files need to be copied
- * @param int $courseid
- * @return: mixed - true on success or in case of an empty media field, an error string if the file copy fails
- */
-function copy_and_flatten(&$object, $path, $courseid) {
- global $CFG;
- if (!empty($object['media'])) {
- $location = $object['media'];
- $object['media'] = $this->flatten_image_name($location);
- if (!@copy("{$CFG->dataroot}/$courseid/$location", "$path/{$object['media']}")) {
- return "Failed to copy {$CFG->dataroot}/$courseid/$location to $path/{$object['media']}";
- }
- if (empty($object['mediamimetype'])) {
- $object['mediamimetype'] = mimeinfo('type', $object['media']);
- }
- }
- return true;
-}
-/**
- * copies all files needed by the questions to the given $path, and flattens the file names
- *
- * @param array $questions the question objects
- * @param string $path the full path name to where the media files need to be copied
- * @param int $courseid
- * @return mixed true on success, an array of error messages otherwise
- */
-function handle_questions_media(&$questions, $path, $courseid) {
- global $CFG;
- $errors = array();
- foreach ($questions as $key=>$question) {
-
- // todo: handle in-line media (specified in the question text)
- if (!empty($question->image)) {
- $location = $questions[$key]->image;
- $questions[$key]->mediaurl = $this->flatten_image_name($location);
- if (!@copy("{$CFG->dataroot}/$courseid/$location", "$path/{$questions[$key]->mediaurl}")) {
- $errors[] = "Failed to copy {$CFG->dataroot}/$courseid/$location to $path/{$questions[$key]->mediaurl}";
- }
- if (empty($question->mediamimetype)) {
- $questions[$key]->mediamimetype = mimeinfo('type', $question->image);
- }
- }
- }
-
- return empty($errors) ? true : $errors;
-}
-
-/**
- * exports the questions in a question category to the given location
- *
- * The parent class method was overridden because the IMS export consists of multiple files
- *
- * @param string $filename the directory name which will hold the exported files
- * @return boolean - or errors out
- */
- function exportprocess() {
-
- global $CFG;
- $courseid = $this->course->id;
-
- // create a directory for the exports (if not already existing)
- if (!$export_dir = make_upload_directory($this->question_get_export_dir().'/'.$this->filename)) {
- print_error('cannotcreatepath', 'quiz', '', $export_dir);
- }
- $path = $CFG->dataroot.'/'.$this->question_get_export_dir().'/'.$this->filename;
-
- // get the questions (from database) in this category
- // $questions = $DB->get_records("question",array("category" => $this->category->id);
- $questions = get_questions_category( $this->category );
-
- notify("Exporting ".count($questions)." questions.");
- $count = 0;
-
- // create the imsmanifest file
- $smarty =& $this->init_smarty();
- $this->add_qti_info($questions);
-
- // copy files used by the main questions to the export directory
- $result = $this->handle_questions_media($questions, $path, $courseid);
- if ($result !== true) {
- notify(implode("<br />", $result));
- }
-
- $manifestquestions = $this->objects_to_array($questions);
- $manifestid = str_replace(array(':', '/'), array('-','_'), "question_category_{$this->category->id}---{$CFG->wwwroot}");
- $smarty->assign('externalfiles', 1);
- $smarty->assign('manifestidentifier', $manifestid);
- $smarty->assign('quiztitle', "question_category_{$this->category->id}");
- $smarty->assign('quizinfo', "All questions in category {$this->category->id}");
- $smarty->assign('questions', $manifestquestions);
- $smarty->assign('lang', $this->lang);
- $smarty->error_reporting = 99;
- $expout = $smarty->fetch('imsmanifest.tpl');
- $filepath = $path.'/imsmanifest.xml';
- if (empty($expout)) {
- print_error('emptyxml', 'question');
- }
- if (!$fh=fopen($filepath,"w")) {
- print_error('cannotopenforwrit', '', '', $filepath);
- }
- if (!fwrite($fh, $expout)) {
- print_error('cannotwriteto', 'question', '', $filepath);
- }
- fclose($fh);
-
- // iterate through questions
- foreach($questions as $question) {
-
- // results are first written into string (and then to a file)
- $count++;
- echo "<hr /><p><b>$count</b>. ".$question->questiontext."</p>";
- $expout = $this->writequestion( $question , null, true, $path) . "\n";
- $expout = $this->presave_process( $expout );
-
- $filepath = $path.'/'.$this->get_assesment_item_id($question) . ".xml";
- if (!$fh=fopen($filepath,"w")) {
- print_error('cannotopenforwrit', '', '', $filepath);
- }
- if (!fwrite($fh, $expout)) {
- print_error('cannotwriteto', 'question', '', $filepath);
- }
- fclose($fh);
-
- }
-
- // zip files into single export file
- zip_files( array($path), "$path.zip" );
-
- // remove the temporary directory
- remove_dir( $path );
-
- return true;
- }
-
-/**
- * exports a quiz (as opposed to exporting a category of questions)
- *
- * The parent class method was overridden because the IMS export consists of multiple files
- *
- * @param object $quiz
- * @param array $questions - an array of question objects
- * @param object $result - if set, contains result of calling quiz_grade_responses()
- * @param string $redirect - a URL to redirect to in case of failure
- * @param string $submiturl - the URL for the qti player to send the results to (e.g. attempt.php)
- * @todo use $result in the ouput
- */
- function export_quiz($course, $quiz, $questions, $result, $redirect, $submiturl = null) {
- $this->xml_entitize($course);
- $this->xml_entitize($quiz);
- $this->xml_entitize($questions);
- $this->xml_entitize($result);
- $this->xml_entitize($submiturl);
- if (! $this->exportpreprocess(0, $course)) { // Do anything before that we need to
- print_error('errorduringpre', 'question', $redirect);
- }
- if (! $this->exportprocess_quiz($quiz, $questions, $result, $submiturl, $course)) { // Process the export data
- print_error('errorduringproc', 'question', $redirect);
- }
- if (! $this->exportpostprocess()) { // In case anything needs to be done after
- print_error('errorduringpost', 'question', $redirect);
- }
-
- }
-
-
-/**
- * This function is called to export a quiz (as opposed to exporting a category of questions)
- *
- * @uses $USER
- * @param object $quiz
- * @param array $questions - an array of question objects
- * @param object $result - if set, contains result of calling quiz_grade_responses()
- * @todo use $result in the ouput
- */
- function exportprocess_quiz($quiz, $questions, $result, $submiturl, $course) {
- global $USER;
- global $CFG;
-
- $gradingmethod = array (1 => 'GRADEHIGHEST',
- 2 => 'GRADEAVERAGE',
- 3 => 'ATTEMPTFIRST' ,
- 4 => 'ATTEMPTLAST');
-
- $questions = $this->quiz_export_prepare_questions($questions, $quiz->id, $course->id, $quiz->shuffleanswers);
-
- $smarty =& $this->init_smarty();
- $smarty->assign('questions', $questions);
-
- // quiz level smarty variables
- $manifestid = str_replace(array(':', '/'), array('-','_'), "quiz{$quiz->id}-{$CFG->wwwroot}");
- $smarty->assign('manifestidentifier', $manifestid);
- $smarty->assign('submiturl', $submiturl);
- $smarty->assign('userid', $USER->id);
- $smarty->assign('username', htmlspecialchars($USER->username, ENT_COMPAT, 'UTF-8'));
- $smarty->assign('quiz_level_export', 1);
- $smarty->assign('quiztitle', format_string($quiz->name,true)); //assigned specifically so as not to cause problems with category-level export
- $smarty->assign('quiztimeopen', date('Y-m-d\TH:i:s', $quiz->timeopen)); // ditto
- $smarty->assign('quiztimeclose', date('Y-m-d\TH:i:s', $quiz->timeclose)); // ditto
- $smarty->assign('grademethod', $gradingmethod[$quiz->grademethod]);
- $smarty->assign('quiz', $quiz);
- $smarty->assign('course', $course);
- $smarty->assign('lang', $this->lang);
- $expout = $smarty->fetch('imsmanifest.tpl');
- echo $expout;
- return true;
- }
-
-
-
-
-/**
- * Prepares questions for quiz export
- *
- * The questions are changed as follows:
- * - the question answers atached to the questions
- * - image set to an http reference instead of a file path
- * - qti specific info added
- * - exporttext added, which contains an xml-formatted qti assesmentItem
- *
- * @param array $questions - an array of question objects
- * @param int $quizid
- * @return an array of question arrays
- */
- function quiz_export_prepare_questions($questions, $quizid, $courseid, $shuffleanswers = null) {
- global $CFG;
- // add the answers to the questions and format the image property
- require_once($CFG->libdir.'/filelib.php');
- foreach ($questions as $key=>$question) {
- $questions[$key] = get_question_data($question);
- $questions[$key]->courseid = $courseid;
- $questions[$key]->quizid = $quizid;
-
- if ($question->image) {
-
- if (empty($question->mediamimetype)) {
- $questions[$key]->mediamimetype = mimeinfo('type',$question->image);
- }
-
- $localfile = (substr(strtolower($question->image), 0, 7) == 'http://') ? false : true;
-
- if ($localfile) {
- // create the http url that the player will need to access the file
- $questions[$key]->mediaurl = get_file_url($question->image);
- } else {
- $questions[$key]->mediaurl = $question->image;
- }
- }
- }
-
- $this->add_qti_info($questions);
- $questions = $this->questions_with_export_info($questions, $shuffleanswers);
- $questions = $this->objects_to_array($questions);
- return $questions;
- }
-
-/**
- * calls htmlspecialchars for each string field, to convert, for example, & to &
- *
- * collections are processed recursively
- *
- * @param array $collection - an array or object or string
- */
-function xml_entitize(&$collection) {
- if (is_array($collection)) {
- foreach ($collection as $key=>$var) {
- if (is_string($var)) {
- $collection[$key]= htmlspecialchars($var, ENT_COMPAT, 'UTF-8');
- } else if (is_array($var) || is_object($var)) {
- $this->xml_entitize($collection[$key]);
- }
- }
- } else if (is_object($collection)) {
- $vars = get_object_vars($collection);
- foreach ($vars as $key=>$var) {
- if (is_string($var)) {
- $collection->$key = htmlspecialchars($var, ENT_COMPAT, 'UTF-8');
- } else if (is_array($var) || is_object($var)) {
- $this->xml_entitize($collection->$key);
- }
- }
- } else if (is_string($collection)) {
- $collection = htmlspecialchars($collection, ENT_COMPAT, 'UTF-8');
- }
-}
-
-/**
- * adds exporttext property to the questions
- *
- * Adds the qti export text to the questions
- *
- * @param array $questions - an array of question objects
- * @return an array of question objects
- */
- function questions_with_export_info($questions, $shuffleanswers = null) {
- $exportquestions = array();
- foreach($questions as $key=>$question) {
- $expout = $this->writequestion( $question , $shuffleanswers) . "\n";
- $expout = $this->presave_process( $expout );
- $key = $this->get_assesment_item_id($question);
- $exportquestions[$key] = $question;
- $exportquestions[$key]->exporttext = $expout;
- }
- return $exportquestions;
- }
-
-/**
- * Creates the export text for a question
- *
- * @todo handle in-line media (specified in the question/subquestion/answer text) for course-level exports
- * @param object $question
- * @param boolean $shuffleanswers whether or not to shuffle the answers
- * @param boolean $courselevel whether or not this is a course-level export
- * @param string $path provide the path to copy question media files to, if $courselevel == true
- * @return string containing export text
- */
- function writequestion($question, $shuffleanswers = null, $courselevel = false, $path = '') {
- // turns question into string
- // question reflects database fields for general question and specific to type
- global $CFG;
- $expout = '';
- //need to unencode the html entities in the questiontext field.
- // the whole question object was earlier run throught htmlspecialchars in xml_entitize().
- $question->questiontext = html_entity_decode($question->questiontext, ENT_COMPAT);
-
- $hasimage = empty($question->image) ? 0 : 1;
- $hassize = empty($question->mediax) ? 0 : 1;
-
- $allowedtags = '<a><br><b><h1><h2><h3><h4><i><img><li><ol><strong><table><tr><td><th><u><ul><object>'; // all other tags will be stripped from question text
- $smarty =& $this->init_smarty();
- $assesmentitemid = $this->get_assesment_item_id($question);
- $question_type = $this->get_qtype( $question->qtype );
- $questionid = "question{$question->id}$question_type";
- $smarty->assign('question_has_image', $hasimage);
- $smarty->assign('hassize', $hassize);
- $smarty->assign('questionid', $questionid);
- $smarty->assign('assessmentitemidentifier', $assesmentitemid);
- $smarty->assign('assessmentitemtitle', $question->name);
- $smarty->assign('courselevelexport', $courselevel);
-
- if ($question->qtype == MULTIANSWER) {
- $question->questiontext = strip_tags($question->questiontext, $allowedtags . '<intro>');
- $smarty->assign('questionText', $this->get_cloze_intro($question->questiontext));
- } else {
- $smarty->assign('questionText', strip_tags($question->questiontext, $allowedtags));
- }
-
- $smarty->assign('question', $question);
- // the following two are left for compatibility; the templates should be changed, though, to make object tags for the questions
- //$smarty->assign('questionimage', $question->image);
- //$smarty->assign('questionimagealt', "image: $question->image");
-
- // output depends on question type
- switch($question->qtype) {
- case TRUEFALSE:
- $qanswers = $question->options->answers;
- $answers[0] = (array)$qanswers['true'];
- $answers[0]['answer'] = get_string("true", "quiz");
- $answers[1] = (array)$qanswers['false'];
- $answers[1]['answer'] = get_string("false", "quiz");
-
- if (!empty($shuffleanswers)) {
- $answers = $this->shuffle_things($answers);
- }
-
- if (isset($question->response)) {
- $correctresponseid = $question->response[$questionid];
- if ($answers[0]['id'] == $correctresponseid) {
- $correctresponse = $answers[0];
- } else {
- $correctresponse = $answers[1];
- }
- }
- else {
- $correctresponse = '';
- }
-
- $smarty->assign('correctresponse', $correctresponse);
- $smarty->assign('answers', $answers);
- $expout = $smarty->fetch('choice.tpl');
- break;
- case MULTICHOICE:
- $answers = $this->objects_to_array($question->options->answers);
- if (!empty($shuffleanswers)) {
- $answers = $this->shuffle_things($answers);
- }
- $correctresponses = $this->get_correct_answers($answers);
- $correctcount = count($correctresponses);
-
-
- $smarty->assign('responsedeclarationcardinality', $correctcount > 1 ? 'multiple' : 'single');
- $smarty->assign('correctresponses', $correctresponses);
- $smarty->assign('answers', $answers);
- $smarty->assign('maxChoices', $question->options->single ? '1' : count($answers));
- $expout = $smarty->fetch('choiceMultiple.tpl');
- break;
- case SHORTANSWER:
- $answers = $this->objects_to_array($question->options->answers);
- if (!empty($shuffleanswers)) {
- $answers = $this->shuffle_things($answers);
- }
-
- $correctresponses = $this->get_correct_answers($answers);
- $correctcount = count($correctresponses);
-
- $smarty->assign('responsedeclarationcardinality', $correctcount > 1 ? 'multiple' : 'single');
- $smarty->assign('correctresponses', $correctresponses);
- $smarty->assign('answers', $answers);
- $expout = $smarty->fetch('textEntry.tpl');
- break;
- case NUMERICAL:
- $qanswer = array_pop( $question->options->answers );
- $smarty->assign('lowerbound', $qanswer->answer - $qanswer->tolerance);
- $smarty->assign('upperbound', $qanswer->answer + $qanswer->tolerance);
- $smarty->assign('answer', $qanswer->answer);
- $expout = $smarty->fetch('numerical.tpl');
- break;
- case MATCH:
- $this->xml_entitize($question->options->subquestions);
- $subquestions = $this->objects_to_array($question->options->subquestions);
- if (!empty($shuffleanswers)) {
- $subquestions = $this->shuffle_things($subquestions);
- }
- $setcount = count($subquestions);
-
- $smarty->assign('setcount', $setcount);
- $smarty->assign('matchsets', $subquestions);
- $expout = $smarty->fetch('match.tpl');
- break;
- case DESCRIPTION:
- $expout = $smarty->fetch('extendedText.tpl');
- break;
- // loss of get_answers() from quiz_embedded_close_qtype class during
- // Gustav's refactor breaks MULTIANSWER badly - one for another day!!
- /*
- case MULTIANSWER:
- $answers = $this->get_cloze_answers_array($question);
- $questions = $this->get_cloze_questions($question, $answers, $allowedtags);
-
- $smarty->assign('cloze_trailing_text_id', CLOZE_TRAILING_TEXT_ID);
- $smarty->assign('answers', $answers);
- $smarty->assign('questions', $questions);
- $expout = $smarty->fetch('composite.tpl');
- break; */
- default:
- $smarty->assign('questionText', "This question type (Unknown: type $question_type) has not yet been implemented");
- $expout = $smarty->fetch('notimplemented.tpl');
- }
-
- // run through xml tidy function
- //$tidy_expout = $this->indent_xhtml( $expout, ' ' ) . "\n\n";
- //return $tidy_expout;
- return $expout;
- }
-
-/**
- * Gets an id to use for a qti assesment item
- *
- * @param object $question
- * @return string containing a qti assesment item id
- */
- function get_assesment_item_id($question) {
- return "question{$question->id}";
- }
-
-/**
- * gets the answers whose grade fraction > 0
- *
- * @param array $answers
- * @return array (0-indexed) containing the answers whose grade fraction > 0
- */
- function get_correct_answers($answers)
- {
- $correctanswers = array();
- foreach ($answers as $answer) {
- if ($answer['fraction'] > 0) {
- $correctanswers[] = $answer;
- }
- }
- return $correctanswers;
- }
-
-/**
- * gets a new Smarty object, with the template and compile directories set
- *
- * @return object a smarty object
- */
- function & init_smarty() {
- global $CFG;
-
- // create smarty compile dir in dataroot
- $path = $CFG->dataroot."/smarty_c";
- if (!is_dir($path)) {
- if (!mkdir($path, $CFG->directorypermissions)) {
- print_error('nopermissiontomkdir');
- }
- }
- $smarty = new Smarty;
- $smarty->template_dir = "{$CFG->dirroot}/question/format/qti2/templates";
- $smarty->compile_dir = "$path";
- return $smarty;
- }
-
-/**
- * converts an array of objects to an array of arrays (not recursively)
- *
- * @param array $objectarray
- * @return array - an array of answer arrays
- */
- function objects_to_array($objectarray)
- {
- $arrayarray = array();
- foreach ($objectarray as $object) {
- $arrayarray[] = (array)$object;
- }
- return $arrayarray;
- }
-
-/**
- * gets a question's cloze answer objects as arrays containing only arrays and basic data types
- *
- * @param object $question
- * @return array - an array of answer arrays
- */
- function get_cloze_answers_array($question) {
- $answers = $this->get_answers($question);
- $this->xml_entitize($answers);
- foreach ($answers as $answerkey => $answer) {
- $answers[$answerkey]->subanswers = $this->objects_to_array($answer->subanswers);
- }
- return $this->objects_to_array($answers);
- }
-
-/**
- * gets an array with text and question arrays for the given cloze question
- *
- * To make smarty processing easier, the returned text and question sub-arrays have an equal number of elements.
- * If it is necessary to add a dummy element to the question sub-array, the question will be given an id of CLOZE_TRAILING_TEXT_ID.
- *
- * @param object $question
- * @param array $answers - an array of arrays containing the question's answers
- * @param string $allowabletags - tags not to strip out of the question text (e.g. '<i><br>')
- * @return array with text and question arrays for the given cloze question
- */
- function get_cloze_questions($question, $answers, $allowabletags) {
- $questiontext = strip_tags($question->questiontext, $allowabletags);
- if (preg_match_all('/(.*){#([0-9]+)}/U', $questiontext, $matches)) {
- // matches[1] contains the text inbetween the question blanks
- // matches[2] contains the id of the question blanks (db: question_multianswer.positionkey)
-
- // find any trailing text after the last {#XX} and add it to the array
- if (preg_match('/.*{#[0-9]+}(.*)$/', $questiontext, $tail)) {
- $matches[1][] = $tail[1];
- $tailadded = true;
- }
- $questions['text'] = $matches[1];
- $questions['question'] = array();
- foreach ($matches[2] as $key => $questionid) {
- foreach ($answers as $answer) {
- if ($answer['positionkey'] == $questionid) {
- $questions['question'][$key] = $answer;
- break;
- }
- }
- }
- if ($tailadded) {
- // to have a matching number of question and text array entries:
- $questions['question'][] = array('id'=>CLOZE_TRAILING_TEXT_ID, 'answertype'=>SHORTANSWER);
- }
-
- } else {
- $questions['text'][0] = $question->questiontext;
- $questions['question'][0] = array('id'=>CLOZE_TRAILING_TEXT_ID, 'answertype'=>SHORTANSWER);
- }
-
- return $questions;
- }
-
-/**
- * strips out the <intro>...</intro> section, if any, and returns the text
- *
- * changes the text object passed to it.
- *
- * @param string $&text
- * @return string the intro text, if there was an intro tag. '' otherwise.
- */
- function get_cloze_intro(&$text) {
- if (preg_match('/(.*)?\<intro>(.+)?\<\/intro>(.*)/s', $text, $matches)) {
- $text = $matches[1] . $matches[3];
- return $matches[2];
- }
- else {
- return '';
- }
- }
-
-
-/**
- * adds qti metadata properties to the questions
- *
- * The passed array of questions is altered by this function
- *
- * @param &questions an array of question objects
- */
- function add_qti_info(&$questions)
- {
- foreach ($questions as $key=>$question) {
- $questions[$key]->qtiinteractiontype = $this->get_qti_interaction_type($question->qtype);
- $questions[$key]->qtiscoreable = $this->get_qti_scoreable($question);
- $questions[$key]->qtisolutionavailable = $this->get_qti_solution_available($question);
- }
-
- }
-
-/**
- * returns whether or not a given question is scoreable
- *
- * @param object $question
- * @return boolean
- */
- function get_qti_scoreable($question) {
- switch ($question->qtype) {
- case DESCRIPTION:
- return 'false';
- default:
- return 'true';
- }
- }
-
-/**
- * returns whether or not a solution is available for a given question
- *
- * The results are based on whether or not Moodle stores answers for the given question type
- *
- * @param object $question
- * @return boolean
- */
- function get_qti_solution_available($question) {
- switch($question->qtype) {
- case TRUEFALSE:
- return 'true';
- case MULTICHOICE:
- return 'true';
- case SHORTANSWER:
- return 'true';
- case NUMERICAL:
- return 'true';
- case MATCH:
- return 'true';
- case DESCRIPTION:
- return 'false';
- case MULTIANSWER:
- return 'true';
- default:
- return 'true';
- }
-
- }
-
-/**
- * maps a moodle question type to a qti 2.0 question type
- *
- * @param int type_id - the moodle question type
- * @return string qti 2.0 question type
- */
- function get_qti_interaction_type($type_id) {
- switch( $type_id ) {
- case TRUEFALSE:
- $name = 'choiceInteraction';
- break;
- case MULTICHOICE:
- $name = 'choiceInteraction';
- break;
- case SHORTANSWER:
- $name = 'textInteraction';
- break;
- case NUMERICAL:
- $name = 'textInteraction';
- break;
- case MATCH:
- $name = 'matchInteraction';
- break;
- case DESCRIPTION:
- $name = 'extendedTextInteraction';
- break;
- case MULTIANSWER:
- $name = 'textInteraction';
- break;
- default:
- $name = 'textInteraction';
- }
- return $name;
- }
-
-/**
- * returns the given array, shuffled
- *
- *
- * @param array $things
- * @return array
- */
- function shuffle_things($things) {
- $things = swapshuffle_assoc($things);
- $oldthings = $things;
- $things = array();
- foreach ($oldthings as $key=>$value) {
- $things[] = $value; // This loses the index key, but doesn't matter
- }
- return $things;
- }
-
-/**
- * returns a flattened image name - with all /, \ and : replaced with other characters
- *
- * used to convert a file or url to a qti-permissable identifier
- *
- * @param string name
- * @return string
- */
- function flatten_image_name($name) {
- return str_replace(array('/', '\\', ':'), array ('_','-','.'), $name);
- }
-
- function file_full_path($file, $courseid) {
- global $CFG;
- if (substr(strtolower($file), 0, 7) == 'http://') {
- $url = $file;
- } else {
- require_once($CFG->libdir.'/filelib.php');
- $url = get_file_url("$courseid/$file");
- }
- return $url;
- }
-
-}
-
-?>
projects / moodle.git / commitdiff