public static function setUpBeforeClass()
 {
     $connection = new \MongoClient(self::$_server);
     self::$_dbConnection1 = $connection->{self::$_database1};
     self::$_dbConnection2 = $connection->{self::$_database2};
     \Mawelous\Yamop\Mapper::setDatabase(array('first' => self::$_dbConnection1, 'second' => self::$_dbConnection2));
 }
 public static function setUpBeforeClass()
 {
     $connection = new \MongoClient(self::$_server);
     self::$_dbConnection = $connection->{self::$_database};
     \Mawelous\Yamop\Mapper::setDatabase(self::$_dbConnection);
 }
function mongo_connect($host, $dbName)
{
    $connection = new \MongoClient($host);
    \Mawelous\Yamop\Mapper::setDatabase($connection->{$dbName});
}