I'm trying to expand on the ZCatalog tutorial at http://www.zope.org/Documentation/How-To/ZCatalogTutorial by creating a ZClass which automatically maintains a catalog of the CatalogAware items within it. So far, I've created: FnordProduct: Product FnordContainerClass: ZClass derived from ObjectManager Catalog: ZCatalog FnordClass: ZClass derived from CatalogAware ... along with a <classname>Info property sheet each and a matching View to boot. Surprise! When I create a FnordContainer and populate it, the Fnords inside it are catalogued in the ZCatalog in the product. That looks like inheritance (sorry, acquisition:) in action. I assume I need to doctor the FnordContainerClass_add method to create a new ZCatalog in the new FnordContainer. How do I do that? CatalogAwareness.py also mentions: This is a Mix-In class to make objects automaticly catalog and uncatalog themselves in Zope, and to provide some other basic attributes that are useful to catalog. Note that if your class or ZClass subclasses CatalogAware, it will only catalog itself when it is added or copied in Zope. If you make changes to your own object, you are responsible for calling your object's index_object method. Uh, fine. At the moment, I'm only editing my Fnords via their Properties view. How do I doctor the view so that index_object is called? Finally; I've added an index_html method to my FnordContainerClass and used the Z Search Interface pseudo-product (all it does is create DTML methods, and one day I'll investigate and find out how the beggars did it) to create search and results methods. For some reason, it can't find any of the items in the Catalog. Wierd. Any ideas? Regards, Garth. -- <gtk@well.com>