<?php //$id$
/**
* 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 dokeos.learnpath
* @author Yannick Warnier < ywarnier @ beeznest . org >
*/
/**
* Script
*/
//flag to allow for anonymous user - needs to be set before global.inc.php
$use_anonymous = true;
// name of the language file that needs to be included
$language_file[] = 'learnpath';
require_once('back_compat.inc.php');
/**
* Writes an item's new values into the database and returns the operation result
* @param integer Learnpath ID
* @param integer User ID
* @param integer View ID
* @param integer Item ID
* @param double Current score
* @param double Maximum score
* @param double Minimum score
* @param string Lesson status
* @param string Session time
* @param string Suspend data
* @param string Lesson location
* @param array Interactions array
* @param string Core exit SCORM string
*/
function save_item($lp_id,$user_id,$view_id,$item_id,$score=-1,$max=-1,$min=-1,$status='',$time=0,$suspend='',$location='',$interactions=array(),$core_exit='none')
{
global $_configuration;
$debug=0;
$return = '';
if($debug>0){error_log('In save_item('.$lp_id.','.$user_id.','.$view_id.','.$item_id.','.$score.','.$max.','.$min.',"'.$status.'",'.$time.',"'.$suspend.'","'.$location.'","'.(count($interactions)>0?$interactions[0]:'').'","'.$core_exit.'")',0);}
//$objResponse = new xajaxResponse();
require_once('learnpath.class.php');
require_once('scorm.class.php');
require_once('aicc.class.php');
require_once('learnpathItem.class.php');
require_once('scormItem.class.php');
require_once('aiccItem.class.php');
$mylp = '';
if(isset($_SESSION['lpobject']))
{
if($debug>1){error_log('////$_SESSION[lpobject] is set',0);}
$oLP =& unserialize($_SESSION['lpobject']);
if(!is_object($oLP)){
if($debug>2){error_log(print_r($oLP,true),0);}
if($debug>2){error_log('////Building new lp',0);}
unset($oLP);
$code = api_get_course_id();
$mylp = & new learnpath($code,$lp_id,$user_id);
}else{
if($debug>2){error_log('////Reusing session lp',0);}
$mylp = & $oLP;
}
}
//$objResponse->addAlert(api_get_path(REL_CODE_PATH).'newscorm/learnpathItem.class.php');
$prereq_check = $mylp->prerequisites_match($item_id);
if($prereq_check === true) //launch the prerequisites check and set error if needed
{
$mylpi =& $mylp->items[$item_id];
//$mylpi->set_lp_view($view_id);
if(isset($max) & & $max!=-1)
{
$mylpi->max_score=$max;
}
if(isset($min) & & $min!=-1)
{
$mylpi->min_score=$min;
}
if(isset($score) & & $score!=-1)
{
if($debug>1){error_log('Calling set_score('.$score.') from xajax',0);}
$mylpi->set_score($score);
}
if(isset($status) & & $status!='')
{
if($debug>1){error_log('Calling set_status('.$status.') from xajax',0);}
$mylpi->set_status($status);
if($debug>1){error_log('Done calling set_status from xajax',0);}
}
if(isset($time) & & $time!='')
{
//if big integer, then it's a timestamp, otherwise it's normal scorm time
if($debug>1){error_log('Calling set_time('.$time.') from xajax',0);}
if($time == intval(strval($time)) & & $time>1000000){
$real_time = time() - $time;
//$real_time += $mylpi->get_total_time();
$mylpi->set_time($real_time,'int');
}else{
$mylpi->set_time($time);
}
}
if(isset($suspend) & & $suspend!='')
{
$mylpi->current_data = $suspend;//escapetxt($suspend);
}
if(isset($location) & & $location!='')
{
$mylpi->set_lesson_location($location);
}
//deal with interactions provided in arrays in the following format
//id(0), type(1), time(2), weighting(3),correct_responses(4),student_response(5),result(6),latency(7)
if(is_array($interactions) & & count($interactions)>0){
foreach($interactions as $index=>$interaction){
//$mylpi->add_interaction($index,$interactions[$index]);
//fix DT#4444
$clean_interaction = str_replace('@.|@',',',$interactions[$index]);
$mylpi->add_interaction($index,$clean_interaction);
}
}
$mylpi->set_core_exit($core_exit);
$mylp->save_item($item_id,false);
}else{
//return $objResponse;
return $return;
}
$mystatus_in_db = $mylpi->get_status(true);
if ($mystatus_in_db< >'completed' & & $mystatus_in_db< >'passed' & & $mystatus_in_db< >'browsed') {
$mystatus_in_memory = $mylpi->get_status(false);
if ($mystatus_in_memory< >$mystatus_in_db) {
$mystatus=$mystatus_in_memory;
} else {
$mystatus=$mystatus_in_db;
}
} else {
$mystatus=$mystatus_in_db;
}
$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==''?'%':$myprogress_mode);
//$mylpi->write_to_db();
$_SESSION['lpobject'] = serialize($mylp);
if($mylpi->get_type()!='sco')
{ //if this object's JS status has not been updated by the SCORM API, update now
//$objResponse->addScript("lesson_status='".$mystatus."';");
$return .= "olms.lesson_status='".$mystatus."';";
}
//$objResponse->addScript("update_toc('".$mystatus."','".$item_id."');");
$return .= "update_toc('".$mystatus."','".$item_id."');";
$update_list = $mylp->get_update_queue();
foreach($update_list as $my_upd_id => $my_upd_status)
{
if($my_upd_id != $item_id){ //only update the status from other items (i.e. parents and brothers), do not update current as we just did it already
//$objResponse->addScript("update_toc('".$my_upd_status."','".$my_upd_id."');");
$return .= "update_toc('".$my_upd_status."','".$my_upd_id."');";
}
}
//$objResponse->addScript("update_progress_bar('$mycomplete','$mytotal','$myprogress_mode');");
$return .= "update_progress_bar('$mycomplete','$mytotal','$myprogress_mode');";
if($debug>0){
//$objResponse->addScript("logit_lms('Saved data for item ".$item_id.", user ".$user_id." (status=".$mystatus.")',2);");
$return .= "logit_lms('Saved data for item ".$item_id.", user ".$user_id." (status=".$mystatus.")',2);";
if($debug>1){error_log('End of save_item()',0);}
}
if($_configuration['tracking_enabled'] & & !isset($_SESSION['login_as']))
{ // if $_SESSION['login_as'] is set, then the user is an admin logged as the user
$tbl_track_login = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$sql_last_connection="SELECT login_id, login_date FROM $tbl_track_login WHERE login_user_id='".api_get_user_id()."' ORDER BY login_date DESC LIMIT 0,1";
$q_last_connection=Database::query($sql_last_connection);
if(Database::num_rows($q_last_connection) > 0) {
$current_time=date('Y-m-d H:i:s');
$row = Database::fetch_array($q_last_connection);
$i_id_last_connection=$row['login_id'];
$s_sql_update_logout_date="UPDATE $tbl_track_login SET logout_date='".$current_time."' WHERE login_id='$i_id_last_connection'";
Database::query($s_sql_update_logout_date);
}
}
if ($mylp->get_type()==2) {
$return .="update_stats();";
}
return $return;
//return $objResponse;
}
$interactions = array();
if(isset($_REQUEST['interact'])) {
if (is_array($_REQUEST['interact'])) {
foreach($_REQUEST['interact'] as $idx=>$interac)
{
$interactions[$idx] = split(',',substr($interac,1,-1));
if(!isset($interactions[$idx][7])){ //make sure there are 7 elements
$interactions[$idx][7]='';
}
}
}
}
echo save_item(
$_REQUEST['lid'],
$_REQUEST['uid'],
$_REQUEST['vid'],
$_REQUEST['iid'],
$_REQUEST['s'],
$_REQUEST['max'],
$_REQUEST['min'],
$_REQUEST['status'],
$_REQUEST['t'],
$_REQUEST['suspend'],
$_REQUEST['loc'],
$interactions,
$_REQUEST['core_exit']);
