protected static function select($a)
{
self::init();
if ($a === 'write') {
if (self::$_writeConnected && self::$_last === 'write') {
return;
}
foreach (self::$_mcs as $i => $c) {
R::selectDatabase("write:{$i}");
if (R::testConnection()) {
R::freeze(true);
self::$_writeConnected = true;
self::$_last = 'write';
return;
}
}
throw new \Exception('Master DB have down');
}
if ($a === 'read') {
if (self::$_readConnected && self::$_last === 'read') {
return;
}
foreach (self::$_scs as $i => $c) {
R::selectDatabase("read:{$i}");
if (R::testConnection()) {
R::freeze(true);
self::$_readConnected = true;
self::$_last = 'read';
return;
}
}
throw new \Exception('Slave and master DB have down');
}
}
