*/ /** * Code */ // 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 $language_file[] = 'learnpath'; require_once 'back_compat.inc.php'; /** * Get one item's details * @param integer LP ID * @param integer user ID * @param integer View ID * @param integer Current item ID * @param integer New item ID */ function switch_item_details($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 */ 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 = $mylpi->get_max(); if ($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 dokeos 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';" ; /* * 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); } $_SESSION['scorm_item_id'] = $new_item_id; // Save the new item ID for the exercise tool to use. $_SESSION['lpobject'] = serialize($mylp); return $return; //return $objResponse; } echo switch_item_details($_REQUEST['lid'], $_REQUEST['uid'], $_REQUEST['vid'], $_REQUEST['iid'], $_REQUEST['next']);