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.
235 lines
8.8 KiB
235 lines
8.8 KiB
<?php
|
|
/* For licensing terms, see /license.txt */
|
|
|
|
/**
|
|
* This script contains the server part of the xajax interaction process. The client part is located
|
|
* in lp_api.php or other api's.
|
|
* This is a first attempt at using xajax and AJAX in general, so the code might be a bit unsettling.
|
|
* @package chamilo.learnpath
|
|
* @author Yannick Warnier <ywarnier@beeznest.org>
|
|
*/
|
|
|
|
// Flag to allow for anonymous user - needs to be set before global.inc.php
|
|
$use_anonymous = true;
|
|
require_once '../inc/global.inc.php';
|
|
|
|
/**
|
|
* Get one item's details
|
|
* @param integer LP ID
|
|
* @param integer user ID
|
|
* @param integer View ID
|
|
* @param integer Current item ID
|
|
* @param integer New item ID
|
|
*/
|
|
function switch_item_details($lp_id, $user_id, $view_id, $current_item, $next_item)
|
|
{
|
|
$debug = 0;
|
|
$return = '';
|
|
if ($debug > 0) {
|
|
error_log(
|
|
'In xajax_switch_item_details('.$lp_id.','.$user_id.','.$view_id.','.$current_item.','.$next_item.')',
|
|
0
|
|
);
|
|
}
|
|
//$objResponse = new xajaxResponse();
|
|
/*$item_id may be one of:
|
|
* -'next'
|
|
* -'previous'
|
|
* -'first'
|
|
* -'last'
|
|
* - a real item ID
|
|
*/
|
|
$mylp = learnpath::getLpFromSession(api_get_course_id(), $lp_id, $user_id);
|
|
$new_item_id = 0;
|
|
switch ($next_item) {
|
|
case 'next':
|
|
$mylp->set_current_item($current_item);
|
|
$mylp->next();
|
|
$new_item_id = $mylp->get_current_item_id();
|
|
if ($debug > 1) {
|
|
error_log('In {next} - next item is '.$new_item_id.'(current: '.$current_item.')', 0);
|
|
}
|
|
break;
|
|
case 'previous':
|
|
$mylp->set_current_item($current_item);
|
|
$mylp->previous();
|
|
$new_item_id = $mylp->get_current_item_id();
|
|
if ($debug > 1) {
|
|
error_log('In {previous} - next item is '.$new_item_id.'(current: '.$current_item.')', 0);
|
|
}
|
|
break;
|
|
case 'first':
|
|
$mylp->set_current_item($current_item);
|
|
$mylp->first();
|
|
$new_item_id = $mylp->get_current_item_id();
|
|
if ($debug > 1) {
|
|
error_log('In {first} - next item is '.$new_item_id.'(current: '.$current_item.')', 0);
|
|
}
|
|
break;
|
|
case 'last':
|
|
break;
|
|
default:
|
|
// Should be filtered to check it's not hacked.
|
|
if ($next_item == $current_item) {
|
|
// If we're opening the same item again.
|
|
$mylp->items[$current_item]->restart();
|
|
}
|
|
$new_item_id = $next_item;
|
|
$mylp->set_current_item($new_item_id);
|
|
if ($debug > 1) {
|
|
error_log('In {default} - next item is '.$new_item_id.'(current: '.$current_item.')', 0);
|
|
}
|
|
break;
|
|
}
|
|
$mylp->start_current_item(true);
|
|
if ($mylp->force_commit) {
|
|
$mylp->save_current();
|
|
}
|
|
//$objResponse->addAlert(api_get_path(REL_CODE_PATH).'newscorm/learnpathItem.class.php');
|
|
if (is_object($mylp->items[$new_item_id])) {
|
|
$mylpi = $mylp->items[$new_item_id];
|
|
} else {
|
|
if ($debug > 1) {
|
|
error_log('In switch_item_details - generating new item object', 0);
|
|
}
|
|
$mylpi = new learnpathItem($new_item_id, $user_id);
|
|
$mylpi->set_lp_view($view_id);
|
|
}
|
|
/*
|
|
* now get what's needed by the SCORM API:
|
|
* -score
|
|
* -max
|
|
* -min
|
|
* -lesson_status
|
|
* -session_time
|
|
* -suspend_data
|
|
*/
|
|
$myscore = $mylpi->get_score();
|
|
$mymax = $mylpi->get_max();
|
|
if ($mymax === '') {
|
|
$mymax = "''";
|
|
}
|
|
$mymin = $mylpi->get_min();
|
|
$mylesson_status = $mylpi->get_status();
|
|
$mylesson_location = $mylpi->get_lesson_location();
|
|
$mytotal_time = $mylpi->get_scorm_time('js');
|
|
$mymastery_score = $mylpi->get_mastery_score();
|
|
$mymax_time_allowed = $mylpi->get_max_time_allowed();
|
|
$mylaunch_data = $mylpi->get_launch_data();
|
|
/*
|
|
if ($mylpi->get_type() == 'asset') {
|
|
// Temporary measure to save completion of an asset. Later on, Chamilo should trigger something on unload, maybe... (even though that would mean the last item cannot be completed)
|
|
$mylesson_status = 'completed';
|
|
$mylpi->set_status('completed');
|
|
$mylpi->save();
|
|
}
|
|
*/
|
|
$mysession_time = $mylpi->get_total_time();
|
|
$mysuspend_data = $mylpi->get_suspend_data();
|
|
$mylesson_location = $mylpi->get_lesson_location();
|
|
$myic = $mylpi->get_interactions_count();
|
|
$myistring = '';
|
|
for ($i = 0; $i < $myic; $i++) {
|
|
$myistring .= ",[".$i.",'','','','','','','']";
|
|
}
|
|
if (!empty($myistring)) {
|
|
$myistring = substr($myistring, 1);
|
|
}
|
|
/*
|
|
* The following lines should reinitialize the values for the SCO
|
|
* However, due to many complications, we are now relying more on the
|
|
* LMSInitialize() call and its underlying lp_ajax_initialize.php call
|
|
* so this code is technically deprecated (but the change of item_id should
|
|
* remain). However, due to numerous technical issues with SCORM, we prefer
|
|
* leaving it as a double-lock security. If removing, please test carefully
|
|
* with both SCORM and proper learning path tracking.
|
|
*/
|
|
$return .=
|
|
"olms.score=".$myscore.";".
|
|
"olms.max=".$mymax.";".
|
|
"olms.min=".$mymin.";".
|
|
"olms.lesson_status='".$mylesson_status."';".
|
|
"olms.lesson_location='".$mylesson_location."';".
|
|
"olms.session_time='".$mysession_time."';".
|
|
"olms.suspend_data='".$mysuspend_data."';".
|
|
"olms.total_time = '".$mytotal_time."';".
|
|
"olms.mastery_score = '".$mymastery_score."';".
|
|
"olms.max_time_allowed = '".$mymax_time_allowed."';".
|
|
"olms.launch_data = '".$mylaunch_data."';".
|
|
"olms.interactions = new Array(".$myistring.");".
|
|
"olms.item_objectives = new Array();".
|
|
"olms.G_lastError = 0;".
|
|
"olms.G_LastErrorMessage = 'No error';".
|
|
"olms.finishSignalReceived = 0;";
|
|
/*
|
|
* and re-initialise the rest
|
|
* -lms_lp_id
|
|
* -lms_item_id
|
|
* -lms_old_item_id
|
|
* -lms_new_item_id
|
|
* -lms_initialized
|
|
* -lms_progress_bar_mode
|
|
* -lms_view_id
|
|
* -lms_user_id
|
|
*/
|
|
$mytotal = $mylp->get_total_items_count_without_chapters();
|
|
$mycomplete = $mylp->get_complete_items_count();
|
|
$myprogress_mode = $mylp->get_progress_bar_mode();
|
|
$myprogress_mode = ($myprogress_mode == '' ? '%' : $myprogress_mode);
|
|
$mynext = $mylp->get_next_item_id();
|
|
$myprevious = $mylp->get_previous_item_id();
|
|
$myitemtype = $mylpi->get_type();
|
|
$mylesson_mode = $mylpi->get_lesson_mode();
|
|
$mycredit = $mylpi->get_credit();
|
|
$mylaunch_data = $mylpi->get_launch_data();
|
|
$myinteractions_count = $mylpi->get_interactions_count();
|
|
$myobjectives_count = $mylpi->get_objectives_count();
|
|
$mycore_exit = $mylpi->get_core_exit();
|
|
|
|
$return .=
|
|
//"saved_lesson_status='not attempted';" .
|
|
"olms.lms_lp_id=".$lp_id.";".
|
|
"olms.lms_item_id=".$new_item_id.";".
|
|
"olms.lms_old_item_id=0;".
|
|
//"lms_been_synchronized=0;" .
|
|
"olms.lms_initialized=0;".
|
|
//"lms_total_lessons=".$mytotal.";" .
|
|
//"lms_complete_lessons=".$mycomplete.";" .
|
|
//"lms_progress_bar_mode='".$myprogress_mode."';" .
|
|
"olms.lms_view_id=".$view_id.";".
|
|
"olms.lms_user_id=".$user_id.";".
|
|
"olms.next_item=".$new_item_id.";". // This one is very important to replace possible literal strings.
|
|
"olms.lms_next_item=".$mynext.";".
|
|
"olms.lms_previous_item=".$myprevious.";".
|
|
"olms.lms_item_type = '".$myitemtype."';".
|
|
"olms.lms_item_credit = '".$mycredit."';".
|
|
"olms.lms_item_lesson_mode = '".$mylesson_mode."';".
|
|
"olms.lms_item_launch_data = '".$mylaunch_data."';".
|
|
"olms.lms_item_interactions_count = '".$myinteractions_count."';".
|
|
"olms.lms_item_objectives_count = '".$myinteractions_count."';".
|
|
"olms.lms_item_core_exit = '".$mycore_exit."';".
|
|
"olms.asset_timer = 0;";
|
|
|
|
$return .= "update_toc('unhighlight','".$current_item."');".
|
|
"update_toc('highlight','".$new_item_id."');".
|
|
"update_toc('$mylesson_status','".$new_item_id."');".
|
|
"update_progress_bar('$mycomplete','$mytotal','$myprogress_mode');";
|
|
|
|
$mylp->set_error_msg('');
|
|
$mylp->prerequisites_match(); // Check the prerequisites are all complete.
|
|
if ($debug > 1) {
|
|
error_log('Prereq_match() returned '.htmlentities($mylp->error), 0);
|
|
}
|
|
// Save the new item ID for the exercise tool to use.
|
|
$_SESSION['scorm_item_id'] = $new_item_id;
|
|
$_SESSION['lpobject'] = serialize($mylp);
|
|
return $return;
|
|
}
|
|
|
|
echo switch_item_details(
|
|
$_REQUEST['lid'],
|
|
$_REQUEST['uid'],
|
|
$_REQUEST['vid'],
|
|
$_REQUEST['iid'],
|
|
$_REQUEST['next']
|
|
);
|
|
|