[Zope] ZCatalog and Folder Properties

[Rogerio Atem de Carvalho]

Hi,

for a number of reasons, I need the following:

1)Create instances of a ZClass, say MyClass, on a specific folder that is 
passaded as a parameter.

2)I have a Catalog that indexes DTMLDocuments placed on a (something) big 
hierarchy of folders. Besides that, some "higher" folders (not all) has two 
strings properties that I need to use to search those DTMLDocuments. I need 
something like "Search all DTMLDocuments that have <string parameters> on its 
content and are in <folder-property1> and <folder-property2>". The use of those 
folder properties is optional, I mean, you can use none, one or both properties 
to search. If you use none, you are going to search on the whole hierarchy of 
folders, otherwise, the search aplies to only part of it.

You can see that what I need is to give the DTMLDocs two properties that they 
obtain from the folders they are placed in. 

What can I do? Use aquisition? Define a DTMLMethod in each "higher" folder that 
can return its DTMLDocs? How can I combine this kind of solution with ZCatalog 
searches?

Regards,

Rogerio Atem