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