Phil Thompson wrote:
On Tue, 11 Nov 2008 00:46:21 +0100, Gijs Molenaar <[EMAIL PROTECTED]> wrote:
Hi people,
I'm trying to write a QT SQL driver for monetdb, but I've not been
successful. MonetDB is a database system that supports SQL and has
python bindings. Please see attachment for my initial tryout. The code
is far from complete, but I'm stuck at the beginning, the DriverCreator.
I subclass QSqlDriverCreatorBase To create a factory that returns
monetdb SQL driver instances, but when I run it I get the error:
TypeError: QtSql.QSqlDriverCreatorBase represents a C++ abstract class
and cannot be instantiated
So I assume that I'm not allowed to inherit this class from python. Am
I'm doing something wrong or is it only possible to do this with a C++
driver for now? This isn't really clear in the documentation or I can't
find it.
Is there anybody here who knows more about this, or tried to do
something similar?
SIP uses the class name to determine if it is a sub-class of an abstract
class (not very clever I admit). Your sub-class has the same name as the
abstract class. If you rename it the problem should go away.
Yes I saw too late that I was using the same name... I shouldn't write
code after 12 PM ;).
After some more strange SIP problems I have the driver partly working
now. The code is online; if somebody is interested:
https://gijs.pythonic.nl/svn/uva/adt/task4/monetdb-navigator/src/QtMonetdbDriver.py
Thanks for the reply!
- gijs
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