[Zope] Batch property change of ZCataloged ZClasses

[Milos Prudek]

I need to loop over a subset of ZCataloged ZClass instances, change a 
property, and reindex the ZClass.


A simple approach fails:

for i in context.Catalog_Org(userid=uid):
   l=i.userid
   l.remove(uid)
   rid=i.data_record_id_
   obj=context.Catalog_Org.getobject(rid)
   obj.propertysheets.data.manage_changeProperties(userid=l)
   obj.reindex_object()

The above Python Script will change only one ZClass instance, no matter 
how many exist, because when "obj.reindex_object()" is reached, it 
causes the loop to end immediately.


A data_record_id caching makes the script work:

rids=[]
for i in context.Catalog_Org(userid=uid):
   l=i.userid
   l.remove(uid)
   rid=i.data_record_id_
   rids.append(rid)
   obj=context.Catalog_Org.getobject(rid)
   obj.propertysheets.data.manage_changeProperties(userid=l)

for rid in rids:
   obj=context.Catalog_Org.getobject(rid)
   obj.reindex_object()

Is it a bug or feature?

I run Zope 2.4.3 on Linux.

-- 
Milos Prudek