[Zope] Optional date properties (Zope 1.11)

[Alexander Staubo]

Okay, admittedly that is so -- but I'd still like to pass a default
value. Most date/time systems have a way of specifying a "zero" date
value that be tested for equality. Right now what I'm doing is testing
against "1900/01/01 00:00:00.0000 GMT+1", which feels a little stupid.

--
Alexander Staubo             http://www.mop.no/~alex/
"`Ford, you're turning into a penguin. Stop it.'"
--Douglas Adams, _The Hitchhiker's Guide to the Galaxy_

>-----Original Message-----
>From: Brian Lloyd [mailto:Brian@digicool.com]
>Sent: 10. juni 1999 16:56
>To: 'Alexander Staubo'; Zope Mailing List (E-mail)
>Subject: RE: [Zope] Optional date properties (Zope 1.11)
>
>
>> I thought I could add an optional date property to my Z
>> Class' property
>> sheet, but no -- it seems Zope requires that you fill in a
>valid date.
>> Is there a workaround?
>>
>> Isn't this inconsistent with other properties' behaviour, though?
>> Wouldn't it be logical that an empty date value as entered in Zope's
>> management screens would represent "None" or at least a
>generic "zero"
>> date?
>>
>> --
>> Alexander Staubo
>
>I don't think that this is necessarily inconsistent - for example,
>if you try to add an int, float, etc. with no value you get:
>
>exceptions.ValueError:
>Empty entry when integer expected
>
>String and string-ish fields may _seem_ to act slightly
>differently in that they accept an empty value, but this
>is really not so different when you consider that '' is a
>valid string (in the same way that 0 would be a valid,
>but "empty" integer).
>
>
>Brian Lloyd        brian@digicool.com
>Software Engineer  540.371.6909
>Digital Creations  http://www.digicool.com
>>
>