def _raise_if_closed(self):
"""Helper to check the connection state before running a query.
Raises an exception if this connection is closed.
:raises: :class:`InterfaceError`: if this connection is closed.
"""
if self.is_closed:
raise InterfaceError("connection is already closed")
def wrapper(cursor, *args, **kwargs):
if not cursor.connection:
raise ProgrammingError("Cursor is not connected to the database")
if cursor.is_closed:
raise InterfaceError("Cursor and/or connection is already closed.")
return function(cursor, *args, **kwargs)
def _raise_if_closed(self):
"""Raise an exception if this cursor is closed.
Helper to check this cursor's state before running a
SQL/DDL/DML query. If the parent connection is
already closed it also raises an error.
:raises: :class:`InterfaceError` if this cursor is closed.
"""
if self.is_closed:
raise InterfaceError("Cursor and/or connection is already closed.")
def wrapper(connection, *args, **kwargs):
if connection.is_closed:
raise InterfaceError("Connection is already closed")
return function(connection, *args, **kwargs)