[Zope-CMF] RFC: first stab at viewification

[Tres Seaver]

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I just checked in a preliminary pass at viewifying the
'full_metadata_form' (now 'metadata.html' as a view):

  svn+ssh://svn.zope.org/repos/main/CMF/branches/tseaver-viewification

A couple of things to note:

  - I adopted a "don't generalize too soon" approach on this,
    rather than trying to come up with a perfect reuse example.
    I have two views registered, 'metadata.html' for the template
    and 'metadata.py' for the controller to which it POSTs (since
    it needs to do redirects).  This is a sort of "hybrid" strategy.

  - Performance on the view version is nearly twice the "classic"
    version (14.2 ms vs 24.2 ms on my box).

  - The view code *does* have tests, although they aren't exhaustive.

  - Making Document objects five:traversable broke some other unit
    tests, so I left that commented out in CMFDefault/configure.zcml.
    To actually exercise the view TTW, you will need to uncomment it.

I need to review Yuppie's branch for folder_contents as well:

  svn+ssh://svn.zope.org/repos/main/CMF/branches/goldegg-folder_contents

Feedback on both branches would be appreciated;  we have folks gathering
here in FXBG to hammer out the remaining viewification plan for CMF 2.0
next week.


Tres.
- --
===================================================================
Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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