On Sat, Aug 18, 2007 at 11:30:11AM -0300, Humberto Diogenes wrote:
> I use it.
Sooner or later I will abandon it. I have asked the question to
determine how soon to abandon it. But certainly I am not going to maintain
it forever.
> Just discovered that 0.8 doesn't work very well with ZPT (Zope
> Page Templates). Everytime there's a tal:repeat="x expr" ZPT calls
> "if not expr", which in turn calls __nonzero__ and since 0.8 that
> raises an exception.
It was added to SQLObject to prevent people writing
if MyTable.select():
and force them to use either
if list(MyTable.select()):
or
if MyTable.select().count():
That shows ZPT has a misdesign here. What should SQLObject return in
__nonzero__() in this case? SQLObject doesn't know in advance if there is
a row in the result set.
Please write to a ZPT mailing list pointing them to an example of an
iterable object that cannot be typecasted to boolean.
Oleg.
--
Oleg Broytmann http://phd.pp.ru/ [EMAIL PROTECTED]
Programmers don't die, they just GOSUB without RETURN.
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