[Dbix-class] Handel 1.0: Electric Boogaloo

[Christopher H. Laco]

It's become clear to me as of late that my Handel-DBIC branch is so far
behind trunk that re converting to the latest DBIC isn't worth the
effort given that I'd like to do a big refactor in 1.0 anyways.

The thought I'm entertaining for 1.0 is a move from ISA subclassing
towards delegation. Not only would I like for someone to be able to plug
in their own DBI layer, but I'd like people to be able to get away from
DBI altogether if they wish. For example, storing the carts contents
remotely via SOAP/XMLRPC or storing them locally in things like XML etc.
This may be a BadThing(TM) which I will regret at some later date. At
least at the DB level, I'd like to give people the ability to store the
cart and orders stuff in two completely different databases.

I know, or think I know, that one of the focuses of DBIC as of late is
to be used as a delegate using Schema rather than relying on
subclassing. What I don't yet understand is a clear best way to tuck
that type of stuff under the covers of another module.

I would think at the very least, I'm going to have 3 levels of things,
the public API, the data access API, and the DBIC Schema modules
themselves. The public API would be essentially what it is now:
new/add/delete/load, etc. The DBIC Schema is pretty straight forward as
well. It's essentially that column/table setups from my current
CDBI/DBIX hackings.

As for the DBI layer and the delegation magic, I'm totally lost.
Has anyone done something similiar; moved from an ISA setup to a
delegation setup? Does it work? Does it fail?

Thanks,
-=Chris




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