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311 lines
11 KiB
311 lines
11 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This is a learning path creation and player tool in Chamilo - previously learnpath_handler.php
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*
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* @author Patrick Cool
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* @author Denes Nagy
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* @author Roan Embrechts, refactoring and code cleaning
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* @author Yannick Warnier <ywarnier@beeznest.org> - cleaning and update for new SCORM tool
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* @package chamilo.learnpath
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*/
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/**
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* INIT SECTION
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*/
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$this_section = SECTION_COURSES;
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api_protect_course_script();
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/* Libraries */
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// The main_api.lib.php, database.lib.php and display.lib.php
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// libraries are included by default.
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include 'learnpath_functions.inc.php';
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//include '../resourcelinker/resourcelinker.inc.php';
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include 'resourcelinker.inc.php';
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// Rewrite the language file, sadly overwritten by resourcelinker.inc.php.
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$language_file = "learnpath";
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/* Constants and variables */
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$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
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$tbl_lp = Database::get_course_table(TABLE_LP_MAIN);
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$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
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$tbl_lp_view = Database::get_course_table(TABLE_LP_VIEW);
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$isStudentView = (int) $_REQUEST['isStudentView'];
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$learnpath_id = (int) $_REQUEST['lp_id'];
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$submit = $_POST['submit_button'];
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/* MAIN CODE */
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// Using the resource linker as a tool for adding resources to the learning path.
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if ($action == 'add' and $type == 'learnpathitem') {
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$htmlHeadXtra[] = "<script language='JavaScript' type='text/javascript'> window.location=\"../resourcelinker/resourcelinker.php?source_id=5&action=$action&learnpath_id=$learnpath_id&chapter_id=$chapter_id&originalresource=no\"; </script>";
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}
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if ((!$is_allowed_to_edit) || ($isStudentView)) {
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error_log('New LP - User not authorized in lp_admin_view.php');
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header('location:lp_controller.php?action=view&lp_id='.$learnpath_id);
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}
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// From here on, we are admin because of the previous condition, so don't check anymore.
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$course_id = api_get_course_int_id();
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$sql_query = "SELECT * FROM $tbl_lp WHERE c_id = $course_id AND id = $learnpath_id";
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$result = Database::query($sql_query);
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$therow = Database::fetch_array($result);
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//$admin_output = '';
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/*
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Course admin section
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- all the functions not available for students - always available in this case (page only shown to admin)
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*/
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/* SHOWING THE ADMIN TOOLS */
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if (isset($_SESSION['gradebook'])) {
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$gradebook = $_SESSION['gradebook'];
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}
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if (!empty($gradebook) && $gradebook == 'view') {
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$interbreadcrumb[] = array (
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'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
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'name' => get_lang('ToolGradebook')
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);
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}
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$interbreadcrumb[] = array('url' => 'lp_controller.php?action=list', 'name' => get_lang('LearningPaths'));
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$interbreadcrumb[] = array('url' => api_get_self()."?action=build&lp_id=$learnpath_id", "name" => stripslashes("{$therow['name']}"));
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if (isset($_REQUEST['updateaudio'])) {
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$interbreadcrumb[] = array('url' => '#', 'name' => get_lang('UpdateAllAudioFragments'));
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} else {
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$interbreadcrumb[] = array('url' => '#', 'name' => get_lang('BasicOverview'));
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}
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// Theme calls.
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$show_learn_path = true;
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$lp_theme_css = $_SESSION['oLP']->get_theme();
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$htmlHeadXtra[] = api_get_jquery_ui_js();
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Display::display_header(null, 'Path');
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//api_display_tool_title($therow['name']);
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$suredel = trim(get_lang('AreYouSureToDelete'));
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//$suredelstep = trim(get_lang('AreYouSureToDeleteSteps'));
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?>
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<script type='text/javascript'>
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var newOrderData= "";
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//source code found in http://www.swartzfager.org/blog/dspNestedList.cfm
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$(function() {
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<?php
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if (!isset($_REQUEST['updateaudio'])) {
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?>
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$("#lp_item_list").sortable({
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items: "li",
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handle: ".moved", //only the class "moved"
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cursor: "move",
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placeholder: "ui-state-highlight", //defines the yellow highlight
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});
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$("#listSubmit").click(function () {
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//Disable the submit button to prevent a double-click
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$(this).attr("disabled","disabled");
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//Initialize the variable that will contain the data to submit to the form
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newOrderData= "";
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//All direct descendants of the lp_item_list will have a parentId of 0
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var parentId= 0;
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//Walk through the direct descendants of the lp_item_list <ul>
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$("#lp_item_list").children().each(function () {
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/*Only process elements with an id attribute (in order to skip the blank,
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unmovable <li> elements.*/
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if ($(this).attr("id")) {
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/*Build a string of data with the child's ID and parent ID,
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using the "|" as a delimiter between the two IDs and the "^"
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as a record delimiter (these delimiters were chosen in case the data
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involved includes more common delimiters like commas within the content)
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*/
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newOrderData= newOrderData + $(this).attr("id") + "|" + "0" + "^";
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//Determine if this child is a containter
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if ($(this).is(".container")) {
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//Process the child elements of the container
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processChildren($(this).attr("id"));
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}
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}
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}); //end of lp_item_list children loop
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//Write the newOrderData string out to the listResults form element
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//$("#listResults").val(newOrderData);
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var order = "new_order="+ newOrderData + "&a=update_lp_item_order";
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$.post("<?php echo api_get_path(WEB_AJAX_PATH)?>lp.ajax.php", order, function(reponse){
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$("#message").html(reponse);
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});
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setTimeout(function() {
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$("#message").html('');
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}, 3000);
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return false;
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}); //end of lp_item_list event assignment
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<?php } ?>
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function processChildren(parentId) {
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//Loop through the children of the UL element defined by the parentId
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var ulParentID= "UL_" + parentId;
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$("#" + ulParentID).children().each(function () {
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/*Only process elements with an id attribute (in order to skip the blank,
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unmovable <li> elements.*/
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if ($(this).attr("id"))
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{
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/*Build a string of data with the child's ID and parent ID,
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using the "|" as a delimiter between the two IDs and the "^"
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as a record delimiter (these delimiters were chosen in case the data
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involved includes more common delimiters like commas within the content)
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*/
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newOrderData= newOrderData + $(this).attr("id") + "|" + parentId + "^";
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//Determine if this child is a containter
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if ($(this).is(".container"))
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{
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//Process the child elements of the container
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processChildren($(this).attr("id"));
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}
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}
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}); //end of children loop
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} //end of processChildren function
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});
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/* <![CDATA[ */
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function stripslashes(str) {
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str=str.replace(/\\'/g,'\'');
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str=str.replace(/\\"/g,'"');
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str=str.replace(/\\\\/g,'\\');
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str=str.replace(/\\0/g,'\0');
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return str;
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}
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function confirmation(name) {
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name=stripslashes(name);
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if (confirm("<?php echo $suredel; ?> " + name + " ?")) {
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return true;
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} else {
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return false;
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}
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}
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</script>
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<?php
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/* DISPLAY SECTION */
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switch ($_GET['action']) {
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case 'edit_item':
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if (isset($is_success) && $is_success === true) {
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Display::display_confirmation_message(get_lang('_learnpath_item_edited'));
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} else {
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echo $_SESSION['oLP']->display_edit_item($_GET['id']);
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}
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break;
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case 'delete_item':
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if (isset($is_success) && $is_success === true) {
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Display::display_confirmation_message(get_lang('_learnpath_item_deleted'));
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}
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break;
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}
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// POST action handling (uploading mp3, deleting mp3)
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if (isset($_POST['save_audio'])) {
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//Updating the lp.modified_on
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$_SESSION['oLP']->set_modified_on();
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// Deleting the audio fragments.
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foreach ($_POST as $key => $value) {
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if (substr($key, 0, 9) == 'removemp3') {
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$lp_items_to_remove_audio[] = str_ireplace('removemp3', '', $key);
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// Removing the audio from the learning path item.
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$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
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$in = implode(',', $lp_items_to_remove_audio);
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}
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}
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if (count($lp_items_to_remove_audio)>0) {
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$sql = "UPDATE $tbl_lp_item SET audio = '' WHERE c_id = $course_id AND id IN (".$in.")";
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$result = Database::query($sql);
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}
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// Uploading the audio files.
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foreach ($_FILES as $key => $value) {
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if (substr($key, 0, 7) == 'mp3file' AND !empty($_FILES[$key]['tmp_name'])) {
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// The id of the learning path item.
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$lp_item_id = str_ireplace('mp3file', '', $key);
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// Create the audio folder if it does not exist yet.
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global $_course;
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$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
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if (!is_dir($filepath.'audio')) {
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mkdir($filepath.'audio', api_get_permissions_for_new_directories());
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$audio_id = add_document($_course, '/audio', 'folder', 0, 'audio');
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api_item_property_update($_course, TOOL_DOCUMENT, $audio_id, 'FolderCreated', api_get_user_id(), null, null, null, null, api_get_session_id());
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}
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// Check if file already exits into document/audio/
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$file_name = $_FILES[$key]['name'];
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$file_name = stripslashes($file_name);
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// Add extension to files without one (if possible).
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$file_name = add_ext_on_mime($file_name, $_FILES[$key]['type']);
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$clean_name = replace_dangerous_char($file_name);
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// No "dangerous" files.
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$clean_name = disable_dangerous_file($clean_name);
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$check_file_path = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/audio/'.$clean_name;
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// If the file exists we generate a new name.
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if (file_exists($check_file_path)) {
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$filename_components = explode('.', $clean_name);
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// Gettting the extension of the file.
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$file_extension = $filename_components[count($filename_components) - 1];
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// Adding something random to prevent overwriting.
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$filename_components[count($filename_components) - 1] = time();
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// Reconstructing the new filename.
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$clean_name = implode($filename_components) .'.'.$file_extension;
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// Using the new name in the $_FILES superglobal.
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$_FILES[$key]['name'] = $clean_name;
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}
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// Upload the file in the documents tool.
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include_once api_get_path(LIBRARY_PATH).'fileUpload.lib.php';
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$file_path = handle_uploaded_document($_course, $_FILES[$key], api_get_path(SYS_COURSE_PATH).$_course['path'].'/document','/audio', api_get_user_id(), '', '', '', '', '', false);
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// Getting the filename only.
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$file_components = explode('/', $file_path);
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$file = $file_components[count($file_components) - 1];
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// Store the mp3 file in the lp_item table.
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$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
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$sql_insert_audio = "UPDATE $tbl_lp_item SET audio = '".Database::escape_string($file)."'
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WHERE c_id = $course_id AND id = '".Database::escape_string($lp_item_id)."'";
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Database::query($sql_insert_audio);
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}
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}
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Display::display_confirmation_message(get_lang('ItemUpdated'));
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}
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echo $_SESSION['oLP']->overview();
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/* FOOTER */
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Display::display_footer();
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