[Zope-dev] zope.app.form: Make "no value" always available?

[Tres Seaver]

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Thomas Lotze wrote:
> Thomas Lotze wrote:
> 
>> Roger Ineichen wrote:
>>
>>> Since this is a miss behavior and I agree that this should get fixed. We
>>> probably should think about a solution which supports the old behavior
>>> by default.
>>>
>>> Note, this whould probably also break other packages like
>>> z3c.csvvocabulary.
>> We've thought about this some more. Our current suggestion is to
>> implement both behaviours using a class attribute for switching, with
>> the base class implementing the new, better one and a subclass setting
>> the attribute differently for BBB.
> 
> Oh well, it turns out that this doesn't really work well as the class in
> question is used as a base class by all the items edit widgets. The
> next-best approach we'd try would be a module-global flag that turns the
> old behaviour back on and must be set during application start-up for BBB.
> Would that be an acceptable solution?

+0 if you release it with a new "major" release number (i.e., 3.6.0),
and document clearly how to get the BBB behavior.  If you need to
release with a new "minor" number (i.e., 3.5.1), then the BBB behavior
must be the default.


Tres.
- --
===================================================================
Tres Seaver          +1 540-429-0999          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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