def lock_connection(cls, conf, dsn, key=None):
        """
        A class method to lock a connection (given by :code:`dsn`) in the specified
        configuration file. Automatically opens the file and writes to it before
        closing.

        :param str conf: The configuration file to modify
        :param str dsn: The name of the connection to lock
        :raises `giraffez.errors.ConfigurationError`: if the connection does not exist
        """
        with Config(conf, "w", key) as c:
            connection = c.get_connection(dsn)
            if not connection:
                raise ConfigurationError("Unable to lock connection")
            if dsn is None:
                dsn = c.settings["connections"]["default"]
            value = "connections.{}.lock".format(dsn)
            lock = c.get_value("connections.{}.lock".format(dsn), default=0)
            if lock >= 2:
                raise ConnectionLock(dsn)
            lock += 1
            c.set_value("connections.{}.lock".format(dsn), lock)
            c.write()
def lock_connection(cls, conf, dsn, key=None):
        """
        A class method to lock a connection (given by :code:`dsn`) in the specified
        configuration file. Automatically opens the file and writes to it before
        closing.

        :param str conf: The configuration file to modify
        :param str dsn: The name of the connection to lock
        :raises `giraffez.errors.ConfigurationError`: if the connection does not exist
        """
        with Config(conf, "w", key) as c:
            connection = c.get_connection(dsn)
            if not connection:
                raise ConfigurationError("Unable to lock connection")
            if dsn is None:
                dsn = c.settings["connections"]["default"]
            value = "connections.{}.lock".format(dsn)
            lock = c.get_value("connections.{}.lock".format(dsn), default=0)
            if lock >= 2:
                raise ConnectionLock(dsn)
            lock += 1
            c.set_value("connections.{}.lock".format(dsn), lock)
            c.write()
def lock_connection ( cls , conf , dsn , key = None ) : with Config ( conf , "w" , key ) as c : connection = c . get_connection ( dsn ) if not connection : raise ConfigurationError ( "Unable to lock connection" ) if dsn is None : dsn = c . settings [ "connections" ] [ "default" ] value = "connections.{}.lock" . format ( dsn ) lock = c . get_value ( "connections.{}.lock" . format ( dsn ) , default = 0 ) if lock >= 2 : raise ConnectionLock ( dsn ) lock += 1 c . set_value ( "connections.{}.lock" . format ( dsn ) , lock ) c . write ( )
A class method to lock a connection (given by :code:`dsn`) in the specified
        configuration file. Automatically opens the file and writes to it before
        closing.

        :param str conf: The configuration file to modify
        :param str dsn: The name of the connection to lock
        :raises `giraffez.errors.ConfigurationError`: if the connection does not exist
A class method to lock a connection ( given by : code : dsn ) in the specified configuration file . Automatically opens the file and writes to it before closing .