[Zope3-Users] Stuck on configuration of extra folder metadata

[Cliff Ford]

To partly answer my own question, I found this configuration works:

   <!-- Extra Metadata -->
   <!--
   <adapter
     for=".interfaces.IFolderInformable"
     provides=".interfaces.IFolderInfo"
     factory=".folderinfo.FolderInfo"
     trusted="true"
     />
   -->
   <!-- store metadate on a standard folder object -->
   <adapter
     for="zope.app.folder.interfaces.IFolder"
     provides=".interfaces.IFolderInfo"
     factory=".folderinfo.FolderInfo"
     trusted="true"
     />
   <!-- store metadata on a custom content object -->
   <adapter
     for=".interfaces.IGlgPage"
     provides=".interfaces.IFolderInfo"
     factory=".folderinfo.FolderInfo"
     trusted="true"
     />

And the .interfaces.IFolderInfo from my initial posting below is not 
needed (it should have been .interfaces.IFolderInformable anyway). I 
don't know why I don't have to configure the abstract IAnnotatable 
class, perhaps because both classes I am interested in are already 
IAttributeAnnotatable. I also think I learned a lot about how to use the 
annotations from page templates. An example:

<div tal:define="info python:view.getFolderInfo(context).getdata()">
...
</div>

Sorry this is a bit of a blog, but anyone searching the archives for 
answers might find it useful.

Cliff


Cliff Ford wrote:
> 
> I want to keep some extra metadata in a folder instance (by extra I mean 
> other than Dublin Core). I have produced the components necessary to 
> store the extra metadata on one of my own content objects but I don't 
> know how to change the configuration so that it applies to a normal 
> folder. Can anyone enlighten me?
> 
> Cliff
> 
> I have this in configure.zcml:
> 
> <content class=".mypage.MyPage">
>   <implements
>     interface="zope.app.annotation.interfaces.IattrubuteAnnotatable
>                .interfaces.IFolderInfo"
>   />
>   ...
> 
> The .interfaces.IFolderInfo needs to be applied to a folder rather than 
> my own content object.
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