[Zope-dev] DTML Zclass ID bug - HELP!

[Anthony Pfrunder]

On Sun, 17 Oct 1999, Michel Pelletier wrote:

> Anthony Pfrunder wrote:
[snip]
> Did you try <dtml-var document_id>?

Yes and every other thing I could think of <dtml-var title_or_id>...
Remember, the ID field within the View / Edit property sheet (aquired from
DTML doc) has an empty ID field which shouldn't happen.

[snip - will try self(self) when I get home]

> > Just a thought - what about adding a Storage/Zclass mixin class for people
> > doing combo Product / ZClass systems.  Hence, the ZClass gets stored
> > within a ZODB in the appropiate Product directory hence reducing
> > installation hassles.  This also means we can just zip up the Product
> > directory to automatically include ZClasses [looks at the ZODB experts on
> > Zope-dev].

I had a brief look but I couldn't see how ZClasses actually triggers a
transation to store the stuff you create.  I am thinking of something
like:

class My_Product(mixin1, Folder, Zclasses_mixin):
    def __init__(self, ...):
	self.storage_thingo = FileStorage(Product_Base + '/ZClasses.zexp')
	Zclasses_mixin.__init__(self.storage_thingo, cool stuff)

So for starters:
	* How does ZClasses trigger / manage transations
	* There is a DBStorage example in Zope/ZODB but how do you "mount"
it such that all operations on objects within a certain folder are
redirected to this Storage without ANY transations stored in the host?

> My brain hurts when I even try to think about it.  Without a good model,
> I have no idea.  Give it a whack if you think it can happen.
Panadol is an esstential part of the Zope Developers toolkit ;)
BTW: the comments and function names within the DTML source code are
REALLY funny.

Cheers,

Anthony Pfrunder