On Jun 18, 2008, at 1:44 PM, Malthe Borch wrote:
Martijn Faassen wrote:
There's one major problem that I see. What's the backwards
compatibility story? I'm sure there are a lot of cases in lots of
code where people look up views with a getMultiAdapter, and if we
started registering views differently, wouldn't that code break?
How to we get from A to B?
It deserves consideration, but I don't think code will be prone to
break since we're merely providing more information to lookup a view
component, not less.
Exactly. The interface passed to getMultiAdapter or queryMultiAdapter
is a minimum requirement. Making views provide IView won't stop them
from providing Interface, which is the default.
On a somewhat related matter, it would be great if the browser:page
ZCML directive could be augmented to have a provides= attribute, so
that even more specific categories of views can be marked. E.g. for
Malthe's Collage add-on for Plone, which does page compositing, we
want to look up a named view on an object, but only if the view
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