Hello!
On Thu, Jul 27, 2006 at 08:39:02PM +0300, Dan Pascu wrote:
> Following the discussion we had about 2 months ago about having sqlobject
> raise a set of exceptions independent of the backend used, I asked a
> colleague of mine to implement this.
> He did it for the mysql and sqlite backends
This is a good start, thank you!
> ---------- Forwarded Message ----------
> Subject: Database exceptions handling
> Date: Wednesday 26 July 2006 08:03
> From: Mircea Amarascu <[EMAIL PROTECTED]>
> To: sqlobject-discuss@lists.sourceforge.net
>
> I've discovered that the Database API Specification v2.0 is followed by
> both MySQL and
> SQLite Python modules, so all that need to be done in this case was a
> one-to-one mapping between
> their exceptions and the SQLObject defined ones.
I am not so sure about one-to-one mapping. On a duplicate inserts Some
DB drivers raise ProgrammingError, some raise OperationError, some
IntegrityError. This is what we'd like to unify in a consistent set of
SQLObject's exceptions.
> Index: sqlite/sqliteconnection.py
> ===================================================================
>
> +class ErrorMessage(str):
> + def __new__(cls, e):
> + obj = str.__new__(cls, e[0])
> + obj.code = None
> + obj.module = e.__module__
> + obj.exception = e.__class__.__name__
> + return obj
> +
These classes are too similar. Are they really two different classes?
> Index: mysql/mysqlconnection.py
> ===================================================================
>
> +class ErrorMessage(str):
> + def __new__(cls, e):
> + obj = str.__new__(cls, e[1])
> + obj.code = int(e[0])
> + obj.module = e.__module__
> + obj.exception = e.__class__.__name__
> + return obj
> +
Oleg.
--
Oleg Broytmann http://phd.pp.ru/ [EMAIL PROTECTED]
Programmers don't die, they just GOSUB without RETURN.
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