/**
* Lookup list of instances associated with this user
* @param username value of username in moodle, currently this is ccid
*
* @return array list of instance records associated with user. array( stdClass, ...) stdClass->id, stdClass->url, stdClass->token, stdClass->sourceid
*/
function eclass_getUserInstances($username)
{
global $DB, $CFG;
//using default cache name
$eCache = new EclassCache();
$data = $eCache->getData(INSTANCES_DATAKEY);
if ($data != ECLASS_CACHE_EXPIRED) {
return $data;
}
//otherwise do a query
$dbman = $DB->get_manager();
//check if our tables exist
if (!$dbman->table_exists("eclass_instances") || !$dbman->table_exists("eclass_user_instances")) {
return array();
}
$records = $DB->get_records_sql("select i.* from {eclass_instances} AS i JOIN {eclass_user_instances} AS ui ON (i.id = ui.instance_id) where ui.userid = :userid", array('userid' => $username));
$eCache->setData(INSTANCES_DATAKEY, 5, $records);
$instances = Instance::wrapRecords($records);
debugging("User Instances Found: " . print_r($records, true), DEBUG_DEVELOPER);
return $instances;
}
/**
* Get remote calendar events
* @param int $tstart Start time of time range for events
* @param int $tend End time of time range for events
* @param array/int/boolean $users array of users, user id or boolean for all/no user events
* @param array/int/boolean $groups array of groups, group id or boolean for all/no group events
* @param array/int/boolean $courses array of courses, course id or boolean for all/no course events
*
* @return array of selected remote events + local events or return the events passed to this function (local)
*/
function get_remote_events($tstart, $tend, $users, $event_index)
{
global $DB, $USER, $CFG, $SESSION;
$events = array();
if (is_string($users) || is_int($users)) {
// get instances
require_once $CFG->dirroot . '/local/eclass/lib/session_storage.php';
$instances = eclass_getUserInstances($USER->username);
foreach ($instances as $instance) {
$serverurl = $instance->url . "/webservice/xmlrpc/server.php" . '?wstoken=' . $instance->token;
require_once 'Zend/XmlRpc/Client.php';
$xmlrpcclient = new Zend_XmlRpc_Client($serverurl);
//make the web service call
$function = 'eclass_get_events';
$params = array('userid' => $USER->username, 'start' => $tstart, 'end' => $tend, 'cal_global' => (int) $SESSION->cal_show_global, 'cal_groups' => (int) $SESSION->cal_show_groups, 'cal_course' => (int) $SESSION->cal_show_course, 'cal_user' => (int) $SESSION->cal_show_user);
try {
$remote_events = $xmlrpcclient->call($function, $params);
foreach ($remote_events as $anevent) {
$anevent = (object) $anevent;
$events[$event_index] = $anevent;
$events[$event_index]->id = $event_index;
$event_index++;
}
} catch (Exception $e) {
var_dump($e);
}
}
}
if (!empty($events)) {
$event_cache = new StdClass();
$event_cache->events = $events;
$event_cache->s_time = $tstart;
$event_cache->e_time = $tend;
$eCache = new EclassCache();
$eCache->setData("events" . $SESSION->cal_show_global . $SESSION->cal_show_groups . $SESSION->cal_show_course . $SESSION->cal_show_user, 5, $event_cache);
}
return $events;
}
