[Helma-user] _extends & _prototype

[Jonathan Puckey]

Hi listers,

I have a small question about _extends:

I'm using _extends to extend my Page prototype to have a different  
_parent.
This is because I want to make a different main.hac fire when the  
Page is loaded from:
/Exhibitions/archive/2005/this-is-the-title/

then when it's loaded from:
/Exhibitions/this-is-the-title/

But now I'm recieving the following errors in my event.log:
[2006/10/31 16:32:16] *** Prototype not stored for extended  
relational type ArchivePage
[2006/10/31 16:32:16] *** objects fetched from db will have base  
prototype!

Should I take any notice of these errors?
I just don't see the reason for defining a _prototype field for this  
setup..

greetings,
Jonathan

More information on my setup:

Category type.properties:
_children = collection(Page)
_children.local = ID
_children.foreign = PAGE_CAT
_children.accessname = URLTITLE
archive = collection(ArchivePage)
archive.group = YEAR
archive.local = ID
archive.foreign = PAGE_CAT
archive.accessname = URLTITLE
archive.group.prototype= Archive
archive.group.order = YEAR desc

Page type.properties:
_db = myDataSource
_table = PAGE
_id = ID
_parent = cat
cat=object(Category)
cat.local=PAGE_CAT
cat.foreign=ID

ArchivePage type.properties:
_extends = Page
_parent = cat.archive
cat=object(Category)
cat.local=PAGE_CAT
cat.foreign=ID