<?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 
$language_file[] = 'learnpath';
require_once('back_compat.inc.php');
/**
 * Writes an item's new values into the database and returns the operation result
 * @param   integer Learnpath ID
 * @param   integer User ID
 * @param   integer View ID
 * @param   integer Item ID
 * @param   array   Objectives array
 */
function save_objectives($lp_id,$user_id,$view_id,$item_id,$objectives=array())
{
    global $_configuration;
    $debug=0;
    $return = '';
    if($debug>0){error_log('In xajax_save_objectives('.$lp_id.','.$user_id.','.$view_id.','.$item_id.',"'.(count($objectives)>0?count($objectives):'').'")',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;
        }
    }
    $mylpi =& $mylp->items[$item_id];
    //error_log(__FILE__.' '.__LINE__.' '.print_r($objectives,true),0);
    if(is_array($objectives) && count($objectives)>0){
        foreach($objectives as $index=>$objective){
            //error_log(__FILE__.' '.__LINE__.' '.$objectives[$index][0],0);
            $mylpi->add_objective($index,$objectives[$index]);
        }
        $mylpi->write_objectives_to_db();
    }
    //return $objResponse;
    return $return;
}
$objectives = array();
if(isset($_GET['objectives'])) {
    if (is_array($_GET['objectives'])) {
        foreach($_GET['objectives'] as $idx=>$ob)
        {
            $objectives[$idx] = split(',',substr($ob,1,-1));
            if(!isset($objectives[$idx][4])){ //make sure there are 7 elements
                $objectives[$idx][4]='';
            }
        }
    }
}
echo save_objectives($_GET['lid'],$_GET['uid'],$_GET['vid'],$_GET['iid'],$objectives);