/**
* gc
*
* @param string $past
*
* @return bool
*/
public function gc($past)
{
$query = $this->db->getQuery(true);
$query->delete($this->db->quoteName($this->options['table']))->where($this->db->quoteName($this->options['time_col']) . ' < ' . $this->db->quote((int) $past));
// Remove expired sessions from the database.
$this->db->setQuery($query);
return (bool) $this->db->execute();
}
/**
* Garbage collect stale sessions from the SessionHandler backend.
*
* @param integer $lifetime The maximum age of a session.
*
* @return boolean True on success, false otherwise.
*
* @since 1.0
*/
public function gc($lifetime = 1440)
{
// Determine the timestamp threshold with which to purge old sessions.
$past = time() - $lifetime;
try {
$query = $this->db->getQuery(true);
$query->delete($this->db->quoteName('#__session'))->where($this->db->quoteName('time') . ' < ' . $this->db->quote((int) $past));
// Remove expired sessions from the database.
$this->db->setQuery($query);
return (bool) $this->db->execute();
} catch (\Exception $e) {
return false;
}
}
/**
* Merges the incoming structure definition with the existing structure.
*
* @return void
*
* @note Currently only supports XML format.
* @since 1.0
* @throws \RuntimeException on error.
*/
public function mergeStructure()
{
$tables = $this->db->getTableList();
if ($this->from instanceof \SimpleXMLElement) {
$xml = $this->from;
} else {
$xml = new \SimpleXMLElement($this->from);
}
// Get all the table definitions.
$xmlTables = $xml->xpath('database/table_structure');
foreach ($xmlTables as $table) {
// Convert the magic prefix into the real table name.
$tableName = $this->getRealTableName((string) $table['name']);
if (in_array($tableName, $tables)) {
// The table already exists. Now check if there is any difference.
if ($queries = $this->getAlterTableql($xml->database->table_structure)) {
// Run the queries to upgrade the data structure.
foreach ($queries as $query) {
$this->db->setQuery((string) $query);
try {
$this->db->execute();
} catch (\RuntimeException $e) {
$this->db->log(LogLevel::DEBUG, 'Fail: ' . $this->db->getQuery());
throw $e;
}
$this->db->log(LogLevel::DEBUG, 'Pass: '******'Fail: ' . $this->db->getQuery());
throw $e;
}
$this->db->log(LogLevel::DEBUG, 'Pass: ' . $this->db->getQuery());
}
}
}
