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- <?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>
- * @author Kevin Van Den Haute <kevin@develop-it.be>
- */
- /**
- * Initialisations
- */
- $debug = 0;
- if($debug>0) error_log('New LP -+- Entered lp_controller.php -+-',0);
- $langFile[] = "scormdocument";
- $langFile[] = "scorm";
- $langFile[] = "learnpath";
- //include class definitions before session_start() to ensure availability when touching
- //session vars containing learning paths
- require_once('learnpath.class.php');
- if($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_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']));
- }
- $lp_controller_touched = 1;
- if(isset($_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:
- $oLP = new learnpath(api_get_course_id(),$lp_id,api_get_user_id());
- if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
- break;
- case 2:
- $oLP = new scorm(api_get_course_id(),$lp_id,api_get_user_id());
- if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
- break;
- default:
- $oLP = new learnpath(api_get_course_id(),$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
- $_SESSION['oLP']->message = ''; //should use ->clear_message() method but doesn't work
- switch($_REQUEST['action'])
- {
- case 'admin_view':
- if($debug>0) error_log('New LP - admin_view action triggered',0);
- $_SESSION['refresh'] = 1;
- require('lp_admin_view.php');
- break;
- case 'upload':
- if($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'],$_REQUEST['new_status']);
- require('lp_list.php');
- }
- break;
- case 'edit':
- if($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_lp':
- if($debug>0) error_log('New LP - add_lp action triggered',0);
-
- //call learnpath creation abstract method with course_id, learnpath_name, learnpath_description, type_of_lp, origin_of_creation, file_name
- if(!empty($_REQUEST['learnpath_name'])){
- $_SESSION['refresh'] = 1;
- $new_lp_id = learnpath::add_lp(api_get_course_id(),$_REQUEST['learnpath_name'],$_REQUEST['learnpath_description'],'dokeos','manual','');
- //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');
- }
- require('lp_list.php');
-
-
- break;
-
- case 'add_item':
- if($debug>0) error_log('New LP - add item action triggered',0);
- if(!$lp_found){ error_log('New LP - No learnpath given for add item',0); require('lp_list.php'); }
- else{
- $_SESSION['refresh'] = 1;
- if(!empty($_REQUEST['submit_button']) && !empty($_REQUEST['title'])){
- $_SESSION['oLP']->add_item($_REQUEST['parent'],$_REQUEST['previous'],$_REQUEST['type'],$_REQUEST['path'],$_REQUEST['title']);
- }
- require('lp_admin_view.php');
- }
- break;
-
- case 'add_module':
- if($debug > 0)
- error_log('New LP - add item action triggered', 0);
-
- if(!$lp_found)
- {
- error_log('New LP - No learnpath given for add item', 0);
-
- require('lp_list.php');
- }
- else
- {
- //$_SESSION['refresh'] = 1;
-
- if(isset($_POST['cmdSubmit']))
- {
- $_SESSION['oLP']->add_item(0, -1, 'dokeos_module', '', $_POST['txtTitle']);
- }
-
- require('lp_view.php');
- }
-
- break;
- case 'add_document':
- if($debug > 0)
- error_log('New LP - add item action triggered', 0);
-
- if(!$lp_found)
- {
- error_log('New LP - No learnpath given for add item', 0);
-
- require('lp_list.php');
- }
- else
- {
- //$_SESSION['refresh'] = 1;
-
- if(isset($_POST['cmdSubmit']))
- {
- $_SESSION['oLP']->add_item(0, -1, 'dokeos_document', '', $_POST['txtTitle']);
- }
-
- require('lp_view.php');
- }
-
- break;
-
- case 'add_sub_item': //add an item inside a chapter
- if($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']);
- }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'], $_REQUEST['title']);
- }
- require('lp_admin_view.php');
- }
- break;
- case 'edititemprereq':
- case 'edit_item_prereq':
- if($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 'moveitem':
- case 'move_item':
- if($debug > 0)
- error_log('New LP - move_item action triggered', 0);
-
- if(!$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'], $_REQUEST['direction']);
- }
-
- require('lp_admin_view.php');
-
- break;
- case 'js_api_refresh':
- if($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;
- }
- if(!empty($_SESSION['oLP'])){
- $_SESSION['lpobject'] = serialize($_SESSION['oLP']);
- if($debug>0) error_log('New LP - lpobject is serialized in session',0);
- }
- ?>
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