Chamilo is a learning management system focused on ease of use and accessibility
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
chamilo-lms/main/newscorm/kevin_lp_controller.php

735 lines
24 KiB

<?php //$id: $
/**
* Controller script. Prepares the common background variables to give to the scripts corresponding to
* the requested action
* @package dokeos.learnpath
* @author Yannick Warnier <ywarnier@beeznest.org>
*/
/**
* Initialisations
*/
$debug = 0;
if($debug>0) error_log('New LP -+- Entered lp_controller.php -+-',0);
// name of the language file that needs to be included
$language_file[] = "scormdocument";
$language_file[] = "scorm";
$language_file[] = "learnpath";
//include class definitions before session_start() to ensure availability when touching
//session vars containing learning paths
require_once('learnpath.class.php');
if($debug>0) error_log('New LP - Included learnpath',0);
require_once('learnpathItem.class.php');
if($debug>0) error_log('New LP - Included learnpathItem',0);
require_once('scorm.class.php');
if($debug>0) error_log('New LP - Included scorm',0);
require_once('scormItem.class.php');
if($debug>0) error_log('New LP - Included scormItem',0);
require_once('aicc.class.php');
if($debug>0) error_log('New LP - Included aicc',0);
require_once('aiccItem.class.php');
if($debug>0) error_log('New LP - Included aiccItem',0);
require_once('temp.lib.php');
if($debug>0) error_log('New LP - Included temp',0);
require_once('back_compat.inc.php');
if($debug>0) error_log('New LP - Included back_compat',0);
api_protect_course_script();
//TODO @TODO define tool, action and task to give as parameters to:
//$is_allowed_to_edit = api_is_allowedapi_is_allowed_to_edit();
if ($is_allowed_in_course == false){
Display::display_header('');
api_not_allowed();
Display::display_footer();
}
require_once(api_get_path(LIBRARY_PATH) . "/fckeditor.lib.php");
$lpfound = false;
$myrefresh = 0;
$myrefresh_id = 0;
if(!empty($_SESSION['refresh']) && $_SESSION['refresh']==1){
//check if we should do a refresh of the oLP object (for example after editing the LP)
//if refresh is set, we regenerate the oLP object from the database (kind of flush)
api_session_unregister('refresh');
$myrefresh = 1;
if($debug>0) error_log('New LP - Refresh asked',0);
}
if($debug>0) error_log('New LP - Passed refresh check',0);
if(!empty($_REQUEST['dialog_box'])){
$dialog_box = learnpath::escape_string(urldecode($_REQUEST['dialog_box']));
}
$lp_controller_touched = 1;
var_dump($_SESSION['lpobject']);
if(isset($_SESSION['lpobject']))
{
if($debug>0) error_log('New LP - SESSION[lpobject] is defined',0);
$oLP = unserialize($_SESSION['lpobject']);
if(is_object($oLP)){
if($debug>0) error_log('New LP - oLP is object',0);
if($myrefresh == 1 OR $oLP->cc != api_get_course_id()){
if($debug>0) error_log('New LP - Course has changed, discard lp object',0);
if($myrefresh == 1){$myrefresh_id = $oLP->get_id();}
$oLP = null;
api_session_unregister('oLP');
api_session_unregister('lpobject');
}else{
$_SESSION['oLP'] = $oLP;
$lp_found = true;
}
}
}
if($debug>0) error_log('New LP - Passed data remains check',0);
if($lp_found == false
|| ($_SESSION['oLP']->get_id() != $_REQUEST['lp_id'])
)
{
if($debug>0) error_log('New LP - oLP is not object, has changed or refresh been asked, getting new',0);
//regenerate a new lp object? Not always as some pages don't need the object (like upload?)
if(!empty($_REQUEST['lp_id']) || !empty($myrefresh_id)){
if($debug>0) error_log('New LP - lp_id is defined',0);
//select the lp in the database and check which type it is (scorm/dokeos/aicc) to generate the
//right object
$lp_table = Database::get_course_table('lp');
if(!empty($_REQUEST['lp_id'])){
$lp_id = escape_txt($_REQUEST['lp_id']);
}else{
$lp_id = $myrefresh_id;
}
$sel = "SELECT * FROM $lp_table WHERE id = $lp_id";
if($debug>0) error_log('New LP - querying '.$sel,0);
$res = api_sql_query($sel);
if(Database::num_rows($res))
{
$row = Database::fetch_array($res);
$type = $row['lp_type'];
if($debug>0) error_log('New LP - found row - type '.$type. ' - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
switch($type){
case 1:
if($debug>0) error_log('New LP - found row - type dokeos - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
$oLP = new learnpath(api_get_course_id(),$lp_id,api_get_user_id());
if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
break;
case 2:
if($debug>0) error_log('New LP - found row - type scorm - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
$oLP = new scorm(api_get_course_id(),$lp_id,api_get_user_id());
if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
break;
case 3:
if($debug>0) error_log('New LP - found row - type aicc - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
$oLP = new aicc(api_get_course_id(),$lp_id,api_get_user_id());
if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
break;
default:
if($debug>0) error_log('New LP - found row - type other - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
$oLP = new learnpath(api_get_course_id(),$lp_id,api_get_user_id());
if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
break;
}
}
}else{
if($debug>0) error_log('New LP - Request[lp_id] and refresh_id were empty',0);
}
if($lp_found)
{
$_SESSION['oLP'] = $oLP;
}
}
if($debug>0) error_log('New LP - Passed oLP creation check',0);
/**
* Actions switching
*/
$_SESSION['oLP']->update_queue = array(); //reinitialises array used by javascript to update items in the TOC
$_SESSION['oLP']->message = ''; //should use ->clear_message() method but doesn't work
if(api_is_allowed_to_edit())
{
switch($_REQUEST['action'])
{
case 'add_item':
$htmlHeadXtra[] = $_SESSION['oLP']->create_js();
require('lp_admin_header.php');
if($debug>0) error_log('New LP - add item action triggered',0);
//old->if(!$lp_found){ error_log('New LP - No learnpath given for add item',0); require('lp_list.php'); }
if(!$_SESSION['oLP']){ error_log('New LP - No learnpath given for add item',0); require('lp_list.php'); }
else
{
if(!empty($_REQUEST['submit_button']) && !empty($_REQUEST['title']))
{
$_SESSION['refresh'] = 1;
if(isset($_SESSION['post_time']) && $_SESSION['post_time'] == $_REQUEST['post_time'])
{
echo $_SESSION['oLP']->build();
}
else
{
$_SESSION['post_time'] = $_REQUEST['post_time'];
if($_REQUEST['type'] != 'dokeos_chapter' && $_REQUEST['type'] != 'dokeos_module' && $_REQUEST['type'] != 'dokeos_step')
$_REQUEST['type'] = 'dokeos_module';
if($_REQUEST['type'] == 'dokeos_step')
{
if(isset($_REQUEST['doc']))
$document_id = $_REQUEST['doc'];
else
$document_id = $_SESSION['oLP']->create_document($_course);
$new_item_id = $_SESSION['oLP']->add_item($_REQUEST['parent'], $_REQUEST['previous'], $_REQUEST['type'], $document_id, $_REQUEST['title'], $_REQUEST['description'], $_REQUEST['description']);
}
else
{
$new_item_id = $_SESSION['oLP']->add_item($_REQUEST['parent'], $_REQUEST['previous'], $_REQUEST['type'], $_REQUEST['path'], $_REQUEST['title'], $_REQUEST['description']);
}
echo $_SESSION['oLP']->build($new_item_id);
}
}
else
{
echo $_SESSION['oLP']->build();
}
}
Display::display_footer();
break;
case 'add_lp':
require('lp_admin_header.php');
if($debug>0) error_log('New LP - admin action with add_lp mode triggered', 0);
$_REQUEST['learnpath_name'] = trim($_REQUEST['learnpath_name']);
if(!empty($_REQUEST['learnpath_name']))
{
$_SESSION['refresh'] = 1;
if(isset($_SESSION['post_time']) && $_SESSION['post_time'] == $_REQUEST['post_time'])
{
echo $_SESSION['oLP']->build();
}
else
{
$_SESSION['post_time'] = $_REQUEST['post_time'];
//Kevin Van Den Haute: changed $_REQUEST['learnpath_description'] by '' because it's not used
//old->$new_lp_id = learnpath::add_lp(api_get_course_id(), $_REQUEST['learnpath_name'], $_REQUEST['learnpath_description'], 'dokeos', 'manual', '');
$new_lp_id = learnpath::add_lp(api_get_course_id(), $_REQUEST['learnpath_name'], '', 'dokeos', 'manual', '');
//Kevin Van Den Haute: only go further if learnpath::add_lp has returned an id
if(is_numeric($new_lp_id))
{
//TODO maybe create a first module directly to avoid bugging the user with useless queries
$_SESSION['oLP'] = new learnpath(api_get_course_id(),$new_lp_id,api_get_user_id());
//$_SESSION['oLP']->add_item(0,-1,'dokeos_chapter',$_REQUEST['path'],'Default');
echo $_SESSION['oLP']->build();
}
}
}
else
{
echo '<div class="lp_message">';
echo '<p style="margin-top:0"><span style="font-weight:bold;">Welcome</span> to Dokeos Learning path authoring tool.</p>';
echo 'You will be able to create your learning path step by step. The structure of your learning path will appear in a menu on the left.';
echo '</div>';
echo '<div style="padding-left:40px;">';
echo '<p style="font-weight:bold">To start, give a title to your learning path:</p>';
echo '<form method="post">';
echo '<label for="idTitle" style="margin-right:10px;">Title:</label><input id="idTitle" name="learnpath_name" type="text" />';
echo '<p><input type="submit" value="OK" /></p>';
echo '<input name="post_time" type="hidden" value="' . time() . '"/>';
echo '</form>';
echo '</div>';
}
Display::display_footer();
break;
case 'build':
require('lp_admin_header.php');
if($debug>0) error_log('New LP - admin action with build mode triggered', 0);
$_SESSION['refresh'] = 1;
echo $_SESSION['oLP']->build();
Display::display_footer();
break;
case 'delete_item':
require('lp_admin_header.php');
$_SESSION['oLP']->delete_item($_GET['id']);
require('lp_admin_header.php');
if(isset($_GET['lp_id']))
echo $_SESSION['oLP']->overview();
else
echo $_SESSION['oLP']->build();
Display::display_footer();
break;
case 'edit_item':
$htmlHeadXtra[] = $_SESSION['oLP']->create_js();
require('lp_admin_header.php');
if($_REQUEST['submit_button'])
{
$_SESSION['oLP']->edit_item($_REQUEST['id'], $_REQUEST['parent'], $_REQUEST['previous'], $_REQUEST['title'], $_REQUEST['description']);
if(isset($_GET['view']) && $_GET['view'] == 'advanced')
{
echo $_SESSION['oLP']->build();
}
else
{
echo $_SESSION['oLP']->overview();
}
}
else
{
if($_GET['view'] && $_GET['view'] == 'advanced')
{
echo $_SESSION['oLP']->build();
}
else
{
echo $_SESSION['oLP']->display_edit_item($_GET['id']);
echo $_SESSION['oLP']->overview();
}
}
Display::display_footer();
break;
case 'edit_step':
$htmlHeadXtra[] = $_SESSION['oLP']->create_js();
require('lp_admin_header.php');
if($_REQUEST['submit_button'])
{
$_SESSION['oLP']->edit_item($_REQUEST['id'], $_REQUEST['title'], $_REQUEST['description']);
$_SESSION['oLP']->edit_document($_course);
$data = $_REQUEST['id'];
}
echo $_SESSION['oLP']->build($data);
Display::display_footer();
break;
case 'move':
$htmlHeadXtra[] = $_SESSION['oLP']->create_js();
require('lp_admin_header.php');
if($_REQUEST['submit_button'])
{
$_SESSION['oLP']->edit_item($_REQUEST['id'], $_REQUEST['parent'], $_REQUEST['previous'], $_REQUEST['title'], $_REQUEST['description'], $_REQUEST['old_previous'], $_REQUEST['old_next']);
echo $_SESSION['oLP']->build();
}
else
{
//if($_GET['view'] && $_GET['view'] == 'advanced')
//{
echo $_SESSION['oLP']->build();
//}
//else
//{
// echo $_SESSION['oLP']->display_edit_item($_GET['id']);
//echo $_SESSION['oLP']->overview();
//}
}
//echo $_SESSION['oLP']->build();
Display::display_footer();
break;
case 'move_item':
require('lp_admin_header.php');
if($debug > 0) error_log('New LP - move_item action triggered', 0);
//old->if(!$lp_found){ error_log('New LP - No learnpath given for move_item', 0); require('lp_list.php'); }
if(!empty($_REQUEST['direction']) && !empty($_REQUEST['id']))
{
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->move_item($_REQUEST['id'], $_REQUEST['direction']);
}
echo $_SESSION['oLP']->overview();
Display::display_footer();
break;
case 'prerequisites':
require('lp_admin_header.php');
echo $_SESSION['oLP']->build();
Display::display_footer();
break;
case 'view_item':
require('lp_admin_header.php');
if($debug>0) error_log('New LP - admin action with view_item mode triggered', 0);
//old->if(!$lp_found){ error_log('New LP - No learnpath given for view item',0); require('lp_list.php'); }
echo $_SESSION['oLP']->build();
Display::display_footer();
break;
case 'admin_view':
require('lp_admin_header.php');
if($debug>0) error_log('New LP - admin action with admin_view mode triggered', 0);
$_SESSION['refresh'] = 1;
echo $_SESSION['oLP']->overview();
Display::display_footer();
break;
/* not modified by Kevin Van Den Haute */
case 'upload':
if($debug>0) error_log('New LP - upload action triggered',0);
$cwdir = getcwd();
require('lp_upload.php');
//reinit current working directory as many functions in upload change it
chdir($cwdir);
require('lp_list.php');
break;
case 'export':
if($debug>0) error_log('New LP - export action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for export',0); require('lp_list.php'); }
else{
if($_SESSION['oLP']->get_type()==2){
$_SESSION['oLP']->export_zip();
}
//require('lp_list.php');
}
break;
case 'delete':
if($debug>0) error_log('New LP - delete action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for delete',0); require('lp_list.php'); }
else{
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->delete(null,null,'remove');
api_session_unregister('oLP');
//require('lp_delete.php');
require('lp_list.php');
}
break;
case 'toggle_visible': //change lp visibility
if($debug>0) error_log('New LP - publish action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for publish',0); require('lp_list.php'); }
else{
learnpath::toggle_visibility($_REQUEST['lp_id'],$_REQUEST['new_status']);
require('lp_list.php');
}
break;
/* rewritten by Kevin Van Den Haute (see more in the beginning of the document */
/*
case 'edit':
if($debug>0) error_log('New LP - edit action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for edit',0); require('lp_list.php'); }
else{
$_SESSION['refresh'] = 1;
require('lp_edit.php');
//require('lp_admin_view.php');
}
break;
*/
case 'update_lp':
if($debug>0) error_log('New LP - update_lp action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for edit',0); require('lp_list.php'); }
else{
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->set_name($_REQUEST['lp_name']);
$_SESSION['oLP']->set_encoding($_REQUEST['lp_encoding']);
$_SESSION['oLP']->set_maker($_REQUEST['lp_maker']);
$_SESSION['oLP']->set_proximity($_REQUEST['lp_proximity']);
require('lp_list.php');
}
break;
case 'add_sub_item': //add an item inside a chapter
if($debug>0) error_log('New LP - add sub item action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for add sub item',0); require('lp_list.php'); }
else{
$_SESSION['refresh'] = 1;
if(!empty($_REQUEST['parent_item_id'])){
$_SESSION['from_learnpath']='yes';
$_SESSION['origintoolurl'] = 'lp_controller.php?action=admin_view&lp_id='.$_REQUEST['lp_id'];
require('resourcelinker.php');
//$_SESSION['oLP']->add_sub_item($_REQUEST['parent_item_id'],$_REQUEST['previous'],$_REQUEST['type'],$_REQUEST['path'],$_REQUEST['title'], $_REQUEST['description']);
}else{
require('lp_admin_view.php');
}
}
break;
/*
case 'deleteitem':
case 'delete_item':
if($debug>0) error_log('New LP - delete item action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for delete item',0); require('lp_list.php'); }
else{
$_SESSION['refresh'] = 1;
if(!empty($_REQUEST['id'])){
$_SESSION['oLP']->delete_item($_REQUEST['id']);
}
require('lp_admin_view.php');
}
break;
*/
/*
case 'edititem':
case 'edit_item':
if($debug>0) error_log('New LP - edit item action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for edit item',0); require('lp_list.php'); }
else{
if(!empty($_REQUEST['id']) && !empty($_REQUEST['submit_item'])){
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->edit_item($_REQUEST['id'], $_REQUEST['title'], $_REQUEST['description']);
}
require('lp_admin_view.php');
}
break;
*/
case 'edititemprereq':
case 'edit_item_prereq':
if($debug>0) error_log('New LP - edit item prereq action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for edit item prereq',0); require('lp_list.php'); }
else{
if(!empty($_REQUEST['id']) && !empty($_REQUEST['submit_item'])){
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->edit_item_prereq($_REQUEST['id'],$_REQUEST['prereq']);
}
require('lp_admin_view.php');
}
break;
case 'restart':
if($debug>0) error_log('New LP - restart action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for restart',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->restart();
require('lp_view.php');
}
break;
case 'last':
if($debug>0) error_log('New LP - last action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for last',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->last();
require('lp_view.php');
}
break;
case 'first':
if($debug>0) error_log('New LP - first action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for first',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->first();
require('lp_view.php');
}
break;
case 'next':
if($debug>0) error_log('New LP - next action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for next',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->next();
require('lp_view.php');
}
break;
case 'previous':
if($debug>0) error_log('New LP - previous action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for previous',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->previous();
require('lp_view.php');
}
break;
case 'content':
if($debug>0) error_log('New LP - content action triggered',0);
if($debug>0) error_log('New LP - Item id is '.$_GET['item_id'],0);
if(!$lp_found){ error_log('New LP - No learnpath given for content',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->set_current_item($_GET['item_id']);
$_SESSION['oLP']->start_current_item();
require('lp_content.php');
}
break;
case 'view':
if($debug > 0)
error_log('New LP - view action triggered', 0);
if(!$lp_found)
{
error_log('New LP - No learnpath given for view', 0);
require('lp_list.php');
}
else
{
if($debug > 0){error_log('New LP - Trying to set current item to ' . $_REQUEST['item_id'], 0);}
$_SESSION['oLP']->set_current_item($_REQUEST['item_id']);
require('lp_view.php');
}
break;
case 'save':
if($debug>0) error_log('New LP - save action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for save',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->save_item();
require('lp_save.php');
}
break;
case 'stats':
if($debug>0) error_log('New LP - stats action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for stats',0); require('lp_list.php'); }
else{
$_SESSION['oLP']->save_current();
$_SESSION['oLP']->save_last();
require('lp_stats.php');
}
break;
case 'list':
if($debug>0) error_log('New LP - list action triggered',0);
if($lp_found){
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->save_last();
}
require('lp_list.php');
break;
case 'mode':
//switch between fullscreen and embedded mode
if($debug>0) error_log('New LP - mode change triggered',0);
$mode = $_REQUEST['mode'];
if($mode == 'fullscreen'){
$_SESSION['oLP']->mode = 'fullscreen';
}else{
$_SESSION['oLP']->mode = 'embedded';
}
require('lp_view.php');
break;
case 'switch_view_mode':
if($debug>0) error_log('New LP - switch_view_mode action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->update_default_view_mode();
require('lp_list.php');
break;
case 'switch_force_commit':
if($debug>0) error_log('New LP - switch_force_commit action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->update_default_scorm_commit();
require('lp_list.php');
break;
case 'switch_reinit':
if($debug>0) error_log('New LP - switch_reinit action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->update_reinit();
require('lp_list.php');
break;
case 'switch_scorm_debug':
if($debug>0) error_log('New LP - switch_scorm_debug action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
$_SESSION['refresh'] = 1;
$_SESSION['oLP']->update_scorm_debug();
require('lp_list.php');
break;
case 'intro_cmdAdd':
if($debug>0) error_log('New LP - intro_cmdAdd action triggered',0);
//add introduction section page
break;
case 'js_api_refresh':
if($debug>0) error_log('New LP - js_api_refresh action triggered',0);
if(!$lp_found){ error_log('New LP - No learnpath given for js_api_refresh',0); require('lp_message.php'); }
if(isset($_REQUEST['item_id'])){
$htmlHeadXtra[] = $_SESSION['oLP']->get_js_info($_REQUEST['item_id']);
}
require('lp_message.php');
break;
default:
if($debug>0) error_log('New LP - default action triggered',0);
//$_SESSION['refresh'] = 1;
require('lp_list.php');
break;
/* end of not modified by Kevin Van Den Haute */
}
}
else
{
Display::display_header();
api_not_allowed();
Display::display_footer();
}
if(!empty($_SESSION['oLP'])){
$_SESSION['lpobject'] = serialize($_SESSION['oLP']);
if($debug>0) error_log('New LP - lpobject is serialized in session',0);
}
?>