[Zope-dev] Re: SVN: Zope/branches/ajung-zpt-end-game/lib/python/Products/PageTemplates/Expressions.py Officially deprecate the BBB methods on the iterator and add a note

[Philipp von Weitershausen]

Philipp von Weitershausen wrote:
> Tres Seaver wrote:
>>>> +    @deprecate("The 'first' method has been deprecated and will disappear "
>>>> +               "in Zope 2.12.  Use the 'start' property instead.")
>>>>      def first(self, name=None):
>>>>          if self.start:
>>>>              return True
>>>>          return not self.same_part(name, self._last, self.item)
>>>>  
>>>> +    @deprecate("The 'last' method has been deprecated and will disappear "
>>>> +               "in Zope 2.12.  Use the 'end' property instead.")
>>>>      def last(self, name=None):
>>>>          if self.end:
>>>>              return True
>>>>
>> I don't think deprecating 'first' and 'last' is appropriate here:  they
>> *aren't* synonyms for 'start' and 'end;  they are used to implement
>> sort-break processing.  Here is the comment from the checkin which
>> initially documented them
>> (http://mail.zope.org/pipermail/zpt/2001-December/002598.html):
> 
> This sounds sensible. Thanks for the pointer. I'll undeprecate them :).

I'll add nonetheless that neither 'first' nor 'last' nor 'nextIndex' are
required by the ZPT spec
(http://www.zope.org/Wikis/DevSite/Projects/ZPT/RepeatVariable). Hence,
Zope 3 just doesn't have them. I can still see a use case for 'first'
and 'last' which is why I'll do my best to continue to support them.

Philipp