/**
* This class implements the Singleton pattern. There is only ever
* one instance of the this class and it is accessed only via the
* ClassName::instance() method.
*
* @return object
* @access public
* @since 5/26/05
* @static
*/
public static function instance()
{
if (!isset(self::$instance)) {
self::$instance = new SegueCourseManager();
}
return self::$instance;
}
/**
* Answer an array of courses for this folder
*
* @return array of course objects
* @access protected
* @since 4/1/08
*/
protected function getCourses()
{
$courseMgr = SegueCourseManager::instance();
return $courseMgr->getUsersCurrentCourses(SORT_DESC);
}
/**
* Answer the course associated with this slot.
*
* @return object SegueCourseSection
* @access public
* @since 2/17/09
*/
public function getCourse()
{
$idMgr = Services::getService("Id");
return SegueCourseManager::instance()->getCourse($idMgr->getId($this->getShortname()));
}
/**
* Execute this action.
*
* @return void
* @access public
* @since 08/11/08
*/
public function execute()
{
$this->start();
try {
if (!$this->isAuthorizedToExecute()) {
throw new PermissionDeniedException("You are not authorized to load course listing.");
}
$semester = RequestContext::value('semester');
$year = strval(RequestContext::value('year'));
$courseMgr = SegueCourseManager::instance();
if (!isset($GLOBALS['SEGUE_COURSE_SITE_LISTING_SEMESTERS']) || !is_array($GLOBALS['SEGUE_COURSE_SITE_LISTING_SEMESTERS']) || !count($GLOBALS['SEGUE_COURSE_SITE_LISTING_SEMESTERS'])) {
throw new ConfigurationErrorException("\$GLOBALS['SEGUE_COURSE_SITE_LISTING_SEMESTERS'] must be an array to enable couse-listing.");
}
$semesters = $GLOBALS['SEGUE_COURSE_SITE_LISTING_SEMESTERS'];
if (!in_array($semester, $semesters)) {
throw new InvalidArgumentException("'semester' must be one of " . implode(", ", $semesters) . ".");
}
if (!preg_match('/^(19|20)[0-9]{2,}$/', $year)) {
throw new InvalidArgumentException("Year '{$year}' must be four digits.");
}
if (!defined('SEGUE_COURSE_SITE_LISTING_MATCH_CALLBACK')) {
throw new ConfigurationErrorException("SEGUE_COURSE_SITE_LISTING_MATCH_CALLBACK must be defined to enable couse-listing.");
}
$func = SEGUE_COURSE_SITE_LISTING_MATCH_CALLBACK;
$slotMgr = SlotManager::instance();
$agentMgr = Services::getService('Agent');
$slots = $slotMgr->getAllSlots();
while ($slots->hasNext()) {
$slot = $slots->next();
if ($slot->siteExists() && $func($slot->getShortname(), $semester, $year)) {
print "\n\t<site id=\"" . $slot->getSiteId()->getIdString() . "\">";
print "\n\t\t<shortname>" . $slot->getShortname() . "</shortname>";
$siteAsset = $slot->getSiteAsset();
print "\n\t\t<displayName>" . strip_tags($siteAsset->getDisplayName()) . "</displayName>";
print "\n\t\t<description>" . strip_tags($siteAsset->getDescription()) . "</description>";
print "\n\t\t<url>" . SiteDispatcher::getSitesUrlForSiteId($slot->getSiteId()->getIdString()) . "</url>";
foreach ($slot->getOwners() as $ownerId) {
$owner = $agentMgr->getAgent($ownerId);
print "\n\t\t<owner id=\"" . $ownerId->getIdString() . "\">";
print "\n\t\t<displayName>" . $owner->getDisplayName() . "</displayName>";
$propertiesIterator = $owner->getProperties();
while ($propertiesIterator->hasNext()) {
$properties = $propertiesIterator->next();
$keys = $properties->getKeys();
while ($keys->hasNext()) {
$key = $keys->next();
print "\n\t\t<property key=\"" . $key . "\">";
print "<![CDATA[" . $properties->getProperty($key) . "]]>";
print "</property>";
}
}
print "\n\t\t</owner>";
}
print "\n\t</site>";
}
}
} catch (Exception $e) {
$this->error($e->getMessage(), get_class($e));
}
$this->end();
}
