Re: making a DBI under Pugs now

At 9:39 PM +0000 11/24/05, Tim Bunce wrote:
>On Wed, Nov 02, 2005 at 06:28:00PM -0800, Darren Duncan wrote:
>>  Today when I was on #perl6 at irc.freenode.net and, out of the blue
>>  just following my connect, autrijus asked me if I would port
>>  DBI::PurePerl and DBD::MySQLPP to Perl 6 such that their presence can
>>  help with Pugs new object handling abilities.
>
>I think that's a bad idea, personally.
>
>I see little good and much harm that could come from doing this.
>
>I want DBI v1 to be a poster child for the ability of Perl 6 to run
>Perl 5 extensions - one way or another (either via ponie or an embedded
>libperl5.so).
>
>The goal of helping "Pugs new object handling abilities" is not worth
>the fragmentation and other problems that would arise.  There are a
>multitude of significant OO modules can could be used for this instead.

Well, you have nothing to worry about; I decided weeks ago to avoid 
such problems and not write any modules named 'DBI' or 'DBD' for Perl 
6.

Rather, the rewrite of 'Rosetta' in Perl 6 will satisfy the necessary 
issues, both as an example of object oriented programming, and as a 
working solution for native database access in Perl 6.

FYI, I am now positioning Rosetta as being a solution in the same 
problem domain as DBI itself, where the main thing it "does" is 
provide a generic lower-level transport layer between an application 
and database (and is a foundation for more specialized APIs), and 
that it is conceptually close to the database's native API.  The main 
difference between Rosetta and DBI is that Rosetta does more munging 
of what it transports, to further homogenize the appearance of 
different databases.

See 
http://svn.openfoundry.org/pugs/ext/Rosetta-Incubator/docs/Overview , 
which I just wrote this monday, for the whole comparison; it is 
incomplete, but readers should learn a lot about the intentions of 
Rosetta that they didn't before.

Rosetta manifests my own ideas of an ideal "DBI v2", though I will 
never name it 'DBI' to avoid stepping on your toes.  I won't give any 
pretense that this is an official successor to DBI v1, though I'm 
hoping that the official DBI v2 and my effort can cross-pollinate 
good ideas.

-- Darren Duncan