Dieter Maurer wrote:
Martin Aspeli wrote at 2007-1-7 23:40 +0000:
...
Why not do it a more Zope3 ish way:
class ICMFTool(Interface):
"""Marker for any CMF tool"""
and then in the subclass of the local component registry:
local_utility = ....
if ICMFTool.providedBy(local_utility):
local_utility = local_utility.__of__(context)
or so.
No need to invent a new marker interface for this.
Objects ready to participate in context wrapping indicate this
by the "__of__" method...
No, no need, but I'd argue good reasons.
- It's an explicit declaration of support
- It's a lot less magic
- It's prettier than getattr/hasattr
- If something else has an __of__() for whatever reason, we don't
catch it by accident.
- It may not be desirable to wrap everything that *could* be wrapped.
Martin
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