[Zope3-Users] Content cloning ?
thierry.florac at onf.fr
Tue Jan 16 06:24:01 EST 2007
Le lundi 15 janvier 2007 à 16:36 +0100, Christian Theune a écrit :
> Am Montag, den 15.01.2007, 16:06 +0100 schrieb Thierry Florac:
> > Hi,
> > In an application I'm currently building with Zope3, I need to be able
> > to "clone" several kinds of content data.
> > While cloning a simple content class is quite simple, I don't know
> > exactly how to clone data provided through adapters, which may store
> > these data throught annotations.
> > What I was thinking about was something like :
> > - create a new interface "IClonable", with a single "clone" method
> > - make my specific content interfaces, eventually provided throught
> > adapters, extend IClonable
> > - get a list of interfaces provided by my content class, directly or
> > throught adapters, which extend IClonable, and call their "clone" method
> > when cloning is required.
> > So, actually, my main problem is :
> > - how can I get the list of interfaces provided by a given class,
> > directly of throught adapters ?
> > - is this conception method the best one in Python/Zope3 to clone
> > data ??
> > Thanks for any help or advise...
> You might want to checkout zc.copy.
Thanks for this link ; in fact I already downloaded "zc.copy" but just
forgot to take a look at it...
In fact, after looking at "zc.copy" package, I finally used the
"original" zope.copypastemove package function to duplicate my content
because it better feets my needs, without duplicating a set of
informations as zc.copy does but just keeping a link on them.
The last problem I still have is that some of the informations stored
into object's annotations have to be indexed into a set of catalogs.
While these informations are indexed correctly when annotations are
created "by hand" in the "normal" way, it's not the case when content is
duplicated "in a whole". Any idea ? Should I iterate over object
annotations and check for ones that should contain indexable content ?
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