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315 lines
12 KiB
315 lines
12 KiB
<?php
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// $Id: CourseSelectForm.class.php 22200 2009-07-17 19:47:58Z iflorespaz $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos SPRL
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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Copyright (c) Bart Mollet (bart.mollet@hogent.be)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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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 the GNU General Public License for more details.
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Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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require_once ('Course.class.php');
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/**
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* Class to show a form to select resources
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* @author Bart Mollet <bart.mollet@hogent.be>
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* @package dokeos.backup
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*/
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class CourseSelectForm
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{
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/**
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* Display the form
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* @param array $hidden_fiels Hidden fields to add to the form.
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* @param boolean the document array will be serialize. This is used in the course_copy.php file
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*/
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function display_form($course, $hidden_fields = null, $avoid_serialize=false)
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{
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$resource_titles[RESOURCE_EVENT] = get_lang('Events');
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$resource_titles[RESOURCE_ANNOUNCEMENT] = get_lang('Announcements');
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$resource_titles[RESOURCE_DOCUMENT] = get_lang('Documents');
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$resource_titles[RESOURCE_LINK] = get_lang('Links');
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$resource_titles[RESOURCE_COURSEDESCRIPTION] = get_lang('CourseDescription');
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$resource_titles[RESOURCE_FORUM] = get_lang('Forums');
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$resource_titles[RESOURCE_QUIZ] = get_lang('Tests');
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$resource_titles[RESOURCE_LEARNPATH] = get_lang('Learnpaths');
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$resource_titles[RESOURCE_SCORM] = 'SCORM';
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$resource_titles[RESOURCE_TOOL_INTRO] = get_lang('ToolIntro');
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$resource_titles[RESOURCE_SURVEY] = get_lang('Survey');
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$resource_titles[RESOURCE_GLOSSARY] = get_lang('Glossary');
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?>
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<script language="JavaScript" type="text/javascript">
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function exp(item) {
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el = document.getElementById('div_'+item);
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if (el.style.display=='none'){
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el.style.display='';
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document.getElementById('img_'+item).src='../img/1.gif';
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}
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else{
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el.style.display='none';
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document.getElementById('img_'+item).src='../img/0.gif';
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}
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}
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function setCheckbox(type,value) {
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d = document.course_select_form;
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for (i = 0; i < d.elements.length; i++) {
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if (d.elements[i].type == "checkbox") {
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var name = d.elements[i].attributes.getNamedItem('name').nodeValue;
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if( name.indexOf(type) > 0 || type == 'all' ){
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d.elements[i].checked = value;
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}
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}
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}
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}
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function checkLearnPath(message){
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d = document.course_select_form;
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for (i = 0; i < d.elements.length; i++) {
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if (d.elements[i].type == "checkbox") {
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var name = d.elements[i].attributes.getNamedItem('name').nodeValue;
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if( name.indexOf('learnpath') > 0){
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if(d.elements[i].checked == true){
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setCheckbox('document',true);
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alert(message);
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break;
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}
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}
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}
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}
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}
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</script>
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<?php
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//get destination course title
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if(!empty($hidden_fields['destination_course'])) {
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require_once(api_get_path(LIBRARY_PATH).'course.lib.php');
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$course_infos = CourseManager::get_course_information($hidden_fields['destination_course']);
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echo '<h3>';
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echo get_lang('DestinationCourse').' : '.$course_infos['title'];
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echo '</h3>';
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}
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echo '<p>';
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echo get_lang('SelectResources');
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echo '</p>';
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echo '<script language="javascript" src="'.api_get_path(WEB_CODE_PATH).'inc/lib/javascript/upload.js" type="text/javascript"></script>';
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echo '<script type="text/javascript">var myUpload = new upload(1000);</script>';
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echo '<form method="post" id="upload_form" name="course_select_form" onsubmit="myUpload.start(\'dynamic_div\',\''.api_get_path(WEB_CODE_PATH).'img/progress_bar.gif\',\''.get_lang('PleaseStandBy').'\',\'upload_form\')">';
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echo '<input type="hidden" name="action" value="course_select_form"/>';
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foreach ($course->resources as $type => $resources) {
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if (count($resources) > 0) {
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switch ($type) {
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case RESOURCE_LINKCATEGORY :
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case RESOURCE_FORUMCATEGORY :
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case RESOURCE_FORUMPOST :
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case RESOURCE_FORUMTOPIC :
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case RESOURCE_QUIZQUESTION:
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case RESOURCE_SURVEYQUESTION:
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case RESOURCE_SURVEYINVITATION:
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case RESOURCE_SCORM:
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break;
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default :
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echo '<img id="img_'.$type.'" src="../img/1.gif" onclick="javascript:exp('."'$type'".');" />';
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echo '<b onclick="javascript:exp('."'$type'".');" >'.$resource_titles[$type].'</b><br />';
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echo '<div id="div_'.$type.'">';
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echo '<blockquote>';
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echo "[<a href=\"#\" onclick=\"javascript:setCheckbox('$type',true);\" >".get_lang('All')."</a> - <a href=\"#\" onclick=\"javascript:setCheckbox('$type',false);\" >".get_lang('None')."</a>]";
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echo '<br />';
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foreach ($resources as $id => $resource) {
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echo '<input type="checkbox" name="resource['.$type.']['.$id.']" id="resource['.$type.']['.$id.']"/>';
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echo ' <label for="resource['.$type.']['.$id.']">';
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$resource->show();
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echo '</label>';
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echo '<br />';
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echo "\n";
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}
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echo '</blockquote>';
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echo '</div>';
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echo '<script language="javascript">exp('."'$type'".')</script>';
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}
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}
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}
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if ($avoid_serialize) {
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//Documents are avoided due the huge amount of memory that the serialize php function "eats" (when there are directories with hundred/thousand of files)
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// this is a known issue of serialize
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$course->resources['document']= null;
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}
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echo '<input type="hidden" name="course" value="'.base64_encode(serialize($course)).'"/>';
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if (is_array($hidden_fields)) {
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foreach ($hidden_fields as $key => $value) {
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echo "\n";
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echo '<input type="hidden" name="'.$key.'" value="'.$value.'"/>';
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}
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}
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echo '<br /><button class="save" type="submit" onclick="checkLearnPath(\''.addslashes(get_lang('DocumentsWillBeAddedToo')).'\')">'.get_lang('Ok').'</button>';
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CourseSelectForm :: display_hidden_quiz_questions($course);
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CourseSelectForm :: display_hidden_scorm_directories($course);
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echo '</form>';
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echo '<div id="dynamic_div" style="display:block;margin-left:40%;margin-top:10px;height:50px;"></div>';
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}
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function display_hidden_quiz_questions($course)
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{
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foreach ($course->resources as $type => $resources) {
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if (count($resources) > 0) {
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switch ($type) {
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case RESOURCE_QUIZQUESTION:
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foreach ($resources as $id => $resource) {
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echo '<input type="hidden" name="resource['.RESOURCE_QUIZQUESTION.']['.$id.'] id="resource['.RESOURCE_QUIZQUESTION.']['.$id.']" value="On" />';
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}
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break;
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}
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}
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}
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}
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function display_hidden_scorm_directories($course)
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{
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foreach ($course->resources as $type => $resources) {
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if(count($resources) > 0) {
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switch($type) {
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case RESOURCE_SCORM:
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foreach ($resources as $id=>$resource) {
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echo '<input type="hidden" name="resource['.RESOURCE_SCORM.']['.$id.'] id="resource['.RESOURCE_SCORM.']['.$id.']" value="On" />';
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}
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break;
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}
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}
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}
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}
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/**
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* Get the posted course
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* @param string who calls the function? It can be copy_course, create_backup, import_backup or recycle_course
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* @return course The course-object with all resources selected by the user
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* in the form given by display_form(...)
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*/
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function get_posted_course($from='')
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{
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$course = unserialize(base64_decode($_POST['course']));
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//Create the resource DOCUMENT objects
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//Loading the results from the checkboxes of the javascript
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$resource = $_POST['resource'][RESOURCE_DOCUMENT];
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$table_doc = Database :: get_course_table(TABLE_DOCUMENT);
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$table_prop = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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// Searching the documents resource that have been set to null because $avoid_serialize is true in the display_form() function
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if ($from=='copy_course') {
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if (is_array($resource)) {
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$resource = array_keys($resource);
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foreach ($resource as $resource_item) {
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$sql = 'SELECT * FROM '.$table_doc.' d, '.$table_prop.' p WHERE tool = \''.TOOL_DOCUMENT.'\' AND p.ref = d.id AND p.visibility != 2 AND id = '.$resource_item.' ORDER BY path';
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$db_result = api_sql_query($sql, __FILE__, __LINE__);
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while ($obj = Database::fetch_object($db_result)) {
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$doc = new Document($obj->id, $obj->path, $obj->comment, $obj->title, $obj->filetype, $obj->size);
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$course->add_resource($doc);
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// adding item property
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$sql = "SELECT * FROM $table_prop WHERE TOOL = '".RESOURCE_DOCUMENT."' AND ref='".$resource_item."'";
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$res = api_sql_query($sql,__FILE__,__LINE__);
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$all_properties = array ();
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while ($item_property = Database::fetch_array($res,'ASSOC')) {
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$all_properties[] = $item_property;
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}
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$course->resources[RESOURCE_DOCUMENT][$resource_item]->item_properties = $all_properties;
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}
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}
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}
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}
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/*else {
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$documents = $_POST['resource'][RESOURCE_DOCUMENT];
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//print_r($course->resources );
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foreach ($resource as $resource_item) {
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echo $resource_item;
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foreach($documents as $obj) {
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print_r($obj);
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if ($obj->id==$resource_item) {
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$doc = new Document($obj->id, $obj->path, $obj->comment, $obj->title, $obj->filetype, $obj->size);
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print_r($doc);
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$course->add_resource($doc);
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}
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}
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}
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}*/
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if (is_array($course->resources)) {
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foreach ($course->resources as $type => $resources) {
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switch ($type) {
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case RESOURCE_SURVEYQUESTION:
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foreach($resources as $id => $obj) {
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if(!in_array($obj->survey_id,array_keys($_POST['resource'][RESOURCE_SURVEY]))) {
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unset ($course->resources[$type][$id]);
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}
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}
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break;
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case RESOURCE_LINKCATEGORY :
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case RESOURCE_FORUMCATEGORY :
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case RESOURCE_FORUMPOST :
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case RESOURCE_FORUMTOPIC :
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case RESOURCE_QUIZQUESTION :
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case RESOURCE_DOCUMENT:
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// Mark folders to import which are not selected by the user to import,
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// but in which a document was selected.
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$documents = $_POST['resource'][RESOURCE_DOCUMENT];
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if (is_array($resources))
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foreach($resources as $id => $obj) {
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if( $obj->file_type == 'folder' && ! isset($_POST['resource'][RESOURCE_DOCUMENT][$id]) && is_array($documents)) {
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foreach($documents as $id_to_check => $post_value) {
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$obj_to_check = $resources[$id_to_check];
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$shared_path_part = substr($obj_to_check->path,0,strlen($obj->path));
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if($id_to_check != $id && $obj->path == $shared_path_part) {
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$_POST['resource'][RESOURCE_DOCUMENT][$id] = 1;
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break;
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}
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}
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}
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}
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default :
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if (is_array($resources)) {
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foreach ($resources as $id => $obj) {
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$resource_is_used_elsewhere = $course->is_linked_resource($obj);
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// check if document is in a quiz (audio/video)
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if( $type == RESOURCE_DOCUMENT && $course->has_resources(RESOURCE_QUIZ))
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{
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foreach($course->resources[RESOURCE_QUIZ] as $qid => $quiz)
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{
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if($quiz->media == $id)
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{
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$resource_is_used_elsewhere = true;
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}
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}
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}
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if (!isset ($_POST['resource'][$type][$id]) && !$resource_is_used_elsewhere)
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{
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unset ($course->resources[$type][$id]);
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}
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}
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}
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}
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}
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}
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return $course;
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}
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}
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?>
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