'Add a reserved tick to the database'

def add_reserved_tick(self, order_id, reserved_order_id, quantity):

    self.execute(u'INSERT    INTO    orders_reserved_ticks    (trader_id,    order_number,    reserved_trader_id,    reserved_order_number,quantity,    quantity_type)    VALUES(?,?,?,?,?,?)', (unicode(order_id.trader_id), unicode(order_id.order_number), unicode(reserved_order_id.trader_id), unicode(reserved_order_id.order_number), float(quantity), unicode(quantity.wallet_id)))
    self.commit()
