[Zope-CMF] transparent folder

[David Hart]

Hi Guys,

Joachim Werner wrote:

> Gregoire Weber schrieb:
>
>> IMO it's better to extend PortalFolder with the relevant methods, as 
>> I've done it. Have a look at the code below.
>
>
> That makes sense. But I don't really recomment TransparentFolder 
> functionality any more. It really can cause serious performance 
> problems, especially if you nest them ...
>
> Cheers
>
> Joachim Werner 

Extending PortalFolder with OrderedObjectManager is long-term approach 
I've planned to take. Thanks for the chunk of OrderedPortalFolder.py! 
I'll give it a try. Do you have complementary OrderedSkinnedFolder and 
OrderedPloneFolder bits? I presume they're changed only by superclassing 
OrderedPortalFolder instead of PortalFolder?

The OrderedFolder hack was simply a proof-of-concept to see what would 
break. I was encouraged to go the route of extending CMF with 
OrderedObjectManager/OrderedFolder because of the recent news of 
OrderedObjectManager's inclusion in Zope 2.7, which is great news!

TransparentFolder is really a hack for what I want to achieve, and I 
would never nest them! :) What would really be useful is efficient N-key 
sorting for OrderedObjectManager. The ZMI UI might be a bit hard to 
present, but it would be very powerful.

But back to invokeFactory... any idea what's causing it to misbehave? Am 
I using it properly?


Cheers,

Dave Hart