/**
* Gets a single instance of the class
*
* @param string $component - the component name
*
* @return CompojoomUtilsComponent|null
*/
public static function getInstance($component)
{
if (!self::$instance) {
self::$instance = new CompojoomUtilsComponent($component);
}
return self::$instance;
}
/**
* Retrieves the update information of the component, returning an array with the following keys:
*
* hasUpdate True if an update is available
* version The version of the available update
* infoURL The URL to the download page of the update
*
* @param bool $force Set to true if you want to forcibly reload the update information
*
* @return array See the method description for more information
*/
public function getUpdates($force = false)
{
$db = $this->getDbo();
// Default response (no update)
$updateResponse = array('hasUpdate' => false, 'version' => '', 'infoURL' => '');
if (empty($this->extension_id)) {
return $updateResponse;
}
// If we are forcing the reload, set the last_check_timestamp to 0
// and remove cached component update info in order to force a reload
if ($force) {
// Find the update site IDs
$updateSiteIds = $this->getUpdateSiteIds();
if (empty($updateSiteIds)) {
return $updateResponse;
}
// Set the last_check_timestamp to 0
$query = $db->getQuery(true)->update($db->qn('#__update_sites'))->set($db->qn('last_check_timestamp') . ' = ' . $db->q('0'))->where($db->qn('update_site_id') . ' IN (' . implode(', ', $updateSiteIds) . ')');
$db->setQuery($query);
$db->execute();
// Remove cached component update info from #__updates
$query = $db->getQuery(true)->delete($db->qn('#__updates'))->where($db->qn('update_site_id') . ' IN (' . implode(', ', $updateSiteIds) . ')');
$db->setQuery($query);
$db->execute();
}
// Use the update cache timeout specified in com_installer
$comInstallerParams = CompojoomUtilsComponent::getInstance('com_installer');
$timeout = 3600 * $comInstallerParams->get('cachetimeout', '6');
// Load any updates from the network into the #__updates table
$this->updater->findUpdates($this->extension_id, $timeout);
// Get the update record from the database
$query = $db->getQuery(true)->select('*')->from($db->qn('#__updates'))->where($db->qn('extension_id') . ' = ' . $db->q($this->extension_id));
$db->setQuery($query);
$updateRecord = $db->loadObject();
// If we have an update record in the database return the information found there
if (is_object($updateRecord)) {
$updateResponse = array('hasUpdate' => true, 'version' => $updateRecord->version, 'infoURL' => $updateRecord->infourl);
}
return $updateResponse;
}
