[Zope-dev] Storing part of an object on the file system

[Andy McKay]

Hmm sounds like ZPatterns might help ;-)... will take a look thanks.
--
  Andy McKay.


----- Original Message -----
From: "Steve Alexander" <steve@cat-box.net>
To: "Andy McKay" <andym@activestate.com>
Cc: <zope-dev@zope.org>
Sent: Friday, February 09, 2001 1:27 AM
Subject: Re: [Zope-dev] Storing part of an object on the file system


> Andy McKay wrote:
>
> > Ok whack idea #34... Well sort of, the idea was sparked by ExtFile (yes
its
> > all his fault honest). We want to have files on the file system for many
> > reasons which I won't go into now, just take it for granted. But we also
> > want some of the objects information to be in the standard data.fs, so
we
> > can catalog it use acquisition provide a simple interface to it and so
on.
> > So far you are saying thats ExtFile and you are right.
> >
> > But we want to extend it to any object anywhere, instead of storing the
data
> > attribute in the object and pickling it in the ZODB I want to be able to
> > store the data attribute on the file system. This gives us loads of
> > advantages we also thought this would be extremely useful to other
people.
> > We've bounced around ideas on how to do this and here the only two so
far:
>
> Use ZPatterns. This is exactly what ZPatterns is designed for; choosing
> different places to store and retrieve different attributes.
>
> > -    we could overload the data attribute with a class that on Pickling
into
> > the ZODB instead writes it on to the filesystem...
>
> You can easily do this with ZPatterns.
>
> > -    we could in the ZODB put a hack to say if pickling something with
so
> > and so attribute do this instead...
>
> You can easily do this with ZPatterns.
>
> > I feel like this something I should just not be doing, but it would be
great
> > if I could get it work...
>
> Take a look at the SkinScript reference.
>
> http://www.zope.org//Members/pje/Wikis/ZPatterns/SkinScriptSyntax
>
> --
> Steve Alexander
> Software Engineer
> Cat-Box limited
> http://www.cat-box.net
>