[Zope3-dev] RFC: Simplify Skinning

[Dominik Huber]

Phillip's Proposal:
Furthermore, I propose to remove the |IDefaultLayer| interface. We've 
been using the |default| layer as a connotation of "always being 
available unless overridden by a more specific layer." However, this 
does not apply all the time: When the |default| layer is not included in 
a specific skin, nothing from the |default| layer will be found even 
though the ZCML statements suggest that it would always be available. I 
therefore propose to make the |default| skin layer an alias for 
|IBrowserRequest|. Anything registered for |default| will obviously 
always be available then, no matter what your skin layer looks like.

-1
I really appreciate that I can disable all registrations if I do not 
derive a skin from the default layer. That's very important use case for 
us. We introduced a minimal layer that is providing only the most 
important functionality like traversers etc. Regularly we derive 
end-user skins from this minimal layer and then we register all views 
explicitly so that we have full controll over accessibility of information.

Regards,
Dominik
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