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List:       koffice-devel
Subject:    Re: kexi and its driver interface
From:       Lucijan Busch <lucijan () gmx ! at>
Date:       2002-12-11 18:00:35
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On Wednesday 11 December 2002 07:12, Dawit A. wrote:
> Hello,
>
> I'm interested in writing a Postgresdb driver for kexi
very nice idea since i don't here anything by aseigo

> , but have few
> questions before I start writing that interface. First why do some of the
> function pass QString by value instead of reference ?  For example, the
> connect functions in kexidb.h.
>
> The other is an advice from experience on using multiple arguments to pass
> authentication/login information.  IMHO the postgres approach of using just
> a simple string separated by spaces makes it infinitely scalable without
> affecting backward compatibility at a cost of loosing automatic type
> checking.  Even a better approach might be to use a QMap of strings as a
> predefined name/value pairs.  For example,  In kexidb.h the interface would
> be defined as:
>
> typedef ConnectInfo QMap<QString,QString>;
>
> virtual bool connect (const ConnectInfo& conninfo);
>
> And in the application it would be:
>
> void somefun (...)
> {
>   ConnectInfo conn;
>
>   conn["username"] = foo;
>   conn["port"] = portnumber;
>   conn["db"] = dbname;
>
>   connect (conn);
> }

that idea looks nice, but i don't really understand what should be the 
advatage of this system...

however, maybe we could meet in irc (irc.freenode.net) i'm called lucijan
and talk about that

cu
lucijan

> Just my $0.02 worth...
>
> Regards,
> Dawit A.
>
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> koffice-devel@mail.kde.org
> http://mail.kde.org/mailman/listinfo/koffice-devel

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