Steve Alexander wrote:
Phillip J. Eby wrote:
Now, I can provide *unfiltered* linkage by direct delegation, but this would mean dropping the ability to selectively take only certain attributes or sheets from the parent. But I suppose that, compared to dropping the capability to acquire altogether, this might be preferable.
This sounds fine for my use of Triggers that apply across everything that a Specialist manages.
I've got ZPatterns 0.4.2a1 now. I see that Folders w/ customizer support now have their own Data-plug-ins tab (they didn't before), and that it does direct delegation, rather than filtered forwarding. Does this mean that your suggestion above has become a design decision for ZPatterns? Data plug-ins directly in Customizers and Specialists aren't due to be deprecated? I'm guessing that this is the case. Also, it is a bit of a pain to refresh each of the DataManager instances on each upgrade. How about an external method in ZPatterns to walk the object tree and update instances as required? Perhaps it could use ZopeFind. Or, seeing as Specialists and Customizer folders contain other DataManagers, could you add a button to a tab in Specialists and Customizer folders that refreshes them, and recursively all the DataManagers they contain? Then I'd just have to go to each top-level datamanager and refresh them when I upgrade. Oh also, FYI, we're using ZPatterns for a couple of medium sized projects, one of which is functionally complete. SkinScript has proved extremely useful. I've been able to evolve an application in a very clean way using propertysheets and SkinScript, whereas before I'd have had to retrofit a custom base class. Phillip and Ty, thanks for your sharing your work and sharing your ideas. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net