*/ /** * 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 $language_file[] = 'learnpath'; require_once('back_compat.inc.php'); /** * Backup an item's values into the javascript API as "old" values (so we still have them at hand) * @param integer Learnpath ID * @param integer User ID * @param integer View ID * @param integer Item ID * @param double Current score * @param double Maximum score * @param double Minimum score * @param string Lesson status * @param string Session time * @param string Suspend data * @param string Lesson location */ function backup_item_details($lp_id,$user_id,$view_id,$item_id,$score=-1,$max=-1,$min=-1,$status='',$time='',$suspend='',$location='') { $objResponse = new xajaxResponse(); $objResponse->addScript( "old_score=".$score.";" . "old_max=".$max.";" . "old_min=".$min.";" . "old_lesson_status='".$status."';" . "old_session_time='".$time."';" . "lms_old_item_id='".$item_id."';" . "old_suspend_data='".$suspend."';" . "old_lesson_location='".$location."';"); //$objResponse->addAlert('data for item '.$item_id.', user '.$user_id.' backed up'); return $objResponse; } /** * Writes an item's new values into the database and returns the operation result * @param integer Learnpath ID * @param integer User ID * @param integer View ID * @param integer Item ID * @param double Current score * @param double Maximum score * @param double Minimum score * @param string Lesson status * @param string Session time * @param string Suspend data * @param string Lesson location * @param string Core exit SCORM string */ function save_item($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; $debug=0; if($debug>0){error_log('In xajax_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($score!=-1){ $mylpi->set_score($score); } if($max!=-1){ $mylpi->max_score=$max; } if($min!=-1){ $mylpi->min_score=$min; } if($status!='') { if($debug>1){error_log('Calling set_status('.$status.') from xajax',0);} $mylpi->set_status($status); if($debug>1){error_log('Done calling set_status from xajax',0);} } if($time!='') { //if big integer, then it's a timestamp, otherwise it's normal scorm time 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($suspend!='') { $mylpi->current_data = $suspend;//escapetxt($suspend); } if($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]); } } $mylpi->set_core_exit($core_exit); $mylp->save_item($item_id,false); } $mystatus = $mylpi->get_status(false); $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."';"); } $objResponse->addScript("update_toc('".$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."');"); } } $objResponse->addScript("update_progress_bar('$mycomplete','$mytotal','$myprogress_mode');"); if($debug>0){ $objResponse->addScript("logit_lms('Saved data for item ".$item_id.", user ".$user_id." (status=".$mystatus.")',2)"); if($debug>1){error_log('End of xajax_save_item()',0);} } if($_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"; $q_last_connection=api_sql_query($sql_last_connection); if(Database::num_rows($q_last_connection) > 0) { $row = Database::fetch_array($q_last_connection); $i_id_last_connection=$row['login_id']; $s_sql_update_logout_date="UPDATE $tbl_track_login SET logout_date=NOW() WHERE login_id='$i_id_last_connection'"; api_sql_query($s_sql_update_logout_date); } } return $objResponse; } /** * Writes an item's new values into the database and returns the operation result * @param integer Learnpath ID * @param integer User ID * @param integer View ID * @param integer Item ID * @param array Objectives array */ function save_objectives($lp_id,$user_id,$view_id,$item_id,$objectives=array()) { global $_configuration; $debug=0; if($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 $objResponse; } /** * Get one item's details * @param integer LP ID * @param integer user ID * @param integer View ID * @param integer Current item ID * @param integer New item ID */ function switch_item_details($lp_id,$user_id,$view_id,$current_item,$next_item) { $debug=0; if($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 */ 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>1){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>1){error_log('////Reusing session lp',0);} $mylp = & $oLP; } } $new_item_id = 0; switch($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(); $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, Dokeos 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(); $objResponse->addScript( "score=".$myscore.";" . "max=".$mymax.";" . "min=".$mymin.";" . "lesson_status='".$mylesson_status."';" . "lesson_location='".$mylesson_location."';" . "session_time='".$mysession_time."';" . "suspend_data='".$mysuspend_data."';" . "lesson_location='".$mylesson_location."';" . "total_time = '".$mytotal_time."';" . "mastery_score = '".$mymastery_score."';" . "max_time_allowed = '".$mymax_time_allowed."';" . "launch_data = '".$mylaunch_data."';" . "interactions = new Array();" . "item_objectives = new Array();" . "G_lastError = 0;" . "G_LastErrorMessage = 'No error';"); /* * and re-initialise the rest * -saved_lesson_status = 'not attempted' * -lms_lp_id * -lms_item_id * -lms_old_item_id * -lms_new_item_id * -lms_been_synchronized * -lms_initialized * -lms_total_lessons * -lms_complete_lessons * -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(); $objResponse->addScript( "saved_lesson_status='not attempted';" . "lms_lp_id=".$lp_id.";" . "lms_item_id=".$new_item_id.";" . "lms_old_item_id=0;" . "lms_been_synchronized=0;" . "lms_initialized=0;" . "lms_total_lessons=".$mytotal.";" . "lms_complete_lessons=".$mycomplete.";" . "lms_progress_bar_mod='".$myprogress_mode."';" . "lms_view_id=".$view_id.";" . "lms_user_id=".$user_id.";" . "next_item=".$new_item_id.";" . //this one is very important to replace possible literal strings "lms_next_item=".$mynext.";" . "lms_previous_item=".$myprevious.";" . "lms_item_type = '".$myitemtype."';" . "lms_item_credit = '".$mycredit."';" . "lms_item_lesson_mode = '".$mylesson_mode."';" . "lms_item_launch_data = '".$mylaunch_data."';" . "lms_item_interactions_count = '".$myinteractions_count."';" . "lms_item_objectives_count = '".$myinteractions_count."';" . "lms_item_core_exit = '".$mycore_exit."';" . "asset_timer = 0;" ); $objResponse->addScript("update_toc('unhighlight','".$current_item."');"); $objResponse->addScript("update_toc('highlight','".$new_item_id."');"); $objResponse->addScript("update_toc('$mylesson_status','".$new_item_id."');"); $objResponse->addScript("update_progress_bar('$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);} $objResponse->addScript("update_message_frame('".str_replace("'","\'",htmlentities($mylp->error))."');"); $_SESSION['scorm_item_id'] = $new_item_id;//Save the new item ID for the exercise tool to use $_SESSION['lpobject'] = serialize($mylp); return $objResponse; } /** * Start a timer and hand it back to the JS by assigning the current time (of start) to * var asset_timer */ function start_timer() { $objResponse = new xajaxResponse(); $time = time(); $objResponse->addScript("asset_timer='$time';asset_timer_total=0;"); return $objResponse; } require('lp_comm.common.php'); $xajax->processRequests(); ?>