public function getDBVersion()
{
$version = $this->connection->fetchAll('SELECT ver_value FROM Versions WHERE ver_name = "last_db_version"');
$version = $version[0]['ver_value'];
$roll = $this->connection->fetchAll('SELECT ver_value FROM Versions WHERE ver_name = "last_db_roll"');
$roll = $roll[0]['ver_value'];
if (!$version) {
$version = '[unknown]';
}
$dbInfo = $version;
if (!in_array($roll, array('', '.'))) {
$dbInfo .= ', roll ' . $roll;
}
return array('version' => $version, 'roll' => $roll, 'dbInfo' => $dbInfo);
}