Casey Duncan wrote: >On Wednesday 06 March 2002 07:27 am, Tim McLaughlin allegedly wrote: > >>Firstly, I'm trying to return a lazy list to a dtml-in, but it seems >>that the __getitems__ are all called up front.... This is the class and >>the print statement shows up in debugging before any debugging output >>from within the dtml-in: >> >[snip code] > >>Does this mean that dmtl-in touches all of the objects first for some >>reason? Or am I missing something? >> > >My guess is that you have a sort attribute on your dtml-in, which would touch >everything in the sequence up front. > Your are right on with that (doh!)....
> >>Second hard ?..... Is there any way to wrap a Folder subclassed >>instance within another class so that I can override some methods on an >>instance by instance basis? I tried doing a .__class__ replacement, but >>for whatever reason, Zope machinery seems to keep it from taking effect. >> Any ideas? I've tried about 5 different approaches to no avail :( >> > >I'm not sure how (or why) you would wrap a class around an instance. In order >to override methods on an instance by instance basis, you would most probably >need to create a object proxy wrapper that override __getattr__ so that it >can fire off the right methods. > >If these methods are accessed TTW, then you could just use __bobo_traverse__ >for this too. > Very long and involved explanation, so I'll skip it :).... but since you agree with one of the many approaches I took (using a proxy), I'll revisit that one and see if morning will make it better. Thanks for the help, Tim -- Tim McLaughlin Iteration ZERO, Inc. - www.iterationzero.com 703.481.3983 _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
