[EMAIL PROTECTED] wrote: > I am trying to implement a proxy class (specifically for the purposes of > multi-versioned document objects (folderish proxies that contain the object > that they proxy to). I am using __getattr__ within my product, and the code > pasted below works, and does not "break" Implicit acquisition (because the > object that _CurrentVersion points to is subclassed from SimpleItem, which > implements Implicit Acquisition). However, because of the way that this > messes with Acquisition, certain things like accessing the ZMI pages or > acquired methods can be quite slow (but work). I suspect that this is > because an instance of this class actually acquires items through the item > it proxies to, which conveniently is contained inside it, which makes > acquisition work for the instance of this class (albeit magnitudes slower). > > I would really like to make this perform better and act properly, but I'm at > a loss as to the right way to do this. Thoughts? > > Sean > > class MVProxy(Folder): > """ > Object acting as proxy to multiple document > implementations serving for each version of this > document; this is a proxy object class > Subclasses OFS.Folder.Folder > """ > def __init__(self, id, title=''): > self.id = id > self.title = title > timestamp = str(int(time.mktime(time.localtime()))) > currentId = id+'_'+timestamp > current = DocumentCoreImpl(currentId, title) > self._setObject(currentId, current) > self._CurrentVersion = current > > def __getattr__(self, name): > return getattr(self._CurrentVersion, name)
Can you use __bobo_traverse__ instead of __getattr__ ? That should make things much faster. -- Steve Alexander _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
