hi ZPattern-Freaks out there, i want to write an ImapClient for CyrusImap as Zope-Product. - Handle several Mailboxes - Use Zope-Management for IMAP-Folder-Management and ACL/Security - Use Custom-Interface as Mailclient The Final Structue I want to have. It should act like a standart Zope Folder-Tree: - ImapClient ( holds Connection-Objects toIMAP-Mailboxes, Storage=ZODB) |- ImapRootFolder ( Connection-Object and Root-Folder , Storage=ZODB) | |-ImapFolder (a folder on the imapserver, not persitantly stored) | | |-ImapFolder (..) | | | | ... | | |-ImapMessage (a message on the imapserver, not persitantly stored) | |-ImapMessage (..) |- ImapRootFolder (..) | |-ImapFolder (..) | | |-ImapFolder (..) | | | | ... | | |-ImapMessage (..) | |-ImapMessage (..) after big thougths about whether to use an Implementation like - ZLDAPConnection * A Root Connection Object class ZLDAPConnection (Acquisition.Implicit,Persistent, OFS.SimpleItem.Item,...) * the nodes ar stored in a Tree of Entries class Entry(Acquisition.Implicit,OFS.SimpleItem.Item) or LocalFS does quite the same ... BUT: I want to be able to "skin" every meta_type separately, but I cannot just use Acquisition because of duplicates like "index_html" ------------------- - Use a Specialist AFAIK a Rack can only serve one meta-type It's hard to implement the Folder Structure in racks ------------------- - Use a Folder w/Customizer this pretty looks like the one to use ... but phillip told me some time ago,that I can use it only with persistant ZODB-Storage like other zope-objects - just use Dataskins with factory. So I decided to give it a try. I now have an ImapClient (CustomizerFolder) which stores ImapRootFolder(Dataskin,Acquisition.Implicit,Folder) the RootFolder emulates an ObjectManager to serve the Folders retrieved from the IMAP-Server. The ImapFolder-Objects are stored in an Attribute Children which is a List. and are created like this: def IMAPFolderFactory(client,Name,FullName="", PaddedName=""): handle = ImapDataSkins.ImapFolder(Name) handle._setRack(client.aq_inner.aq_parent._getDataManagerFor(handle)) handle.__dict__['_rackMounted'] = 0 handle = handle.__of__(client) handle.setup(Name,FullName,PaddedName) return handle Now I have an Tree I can browse in the ZMI ... BUT ... "I lose contact to Zope" when i browse down into the first object wich is not persistantly stored. I allthough don't get the "mapped Attributes/Methods" from the Customizer. Is there a possiblity to use the CustomizerFolder with not ZODB-Objects - What Methods need to be implemented that this could work any help appreciated .. don't want to stop halfway ;-) .. thanks Ulrich Eck