You are not making me hate dates any less.  :-)

On Sep 29, 2010, at 8:15 PM, Ken Anderson wrote:

> An NSTimestamp represents a point in time, as has been stated.  Making it 
> behave differently is a bad idea.
> 
> I have a set of methods that determine today's date in GMT, and store things 
> that are dates that way.  I've never had a problem.  I pull out the year, 
> month, and day from a timestamp represented in the local timezone, then 
> create a new timestamp with the same year, month, and day with GMT as the 
> timezone.  It's always worked for me...
> 
> Ken
> 
> 
> 
> On Sep 29, 2010, at 10:44 PM, Chuck Hill wrote:
> 
>> Piling on here.  As Louis pointed out, "NSTimestamps are points in time".  
>> Messing with that in prototypes is a Bad Idea.  You will regret.  Have you 
>> crossed a DST boundary yet in your testing? And making one database behave 
>> differently than others seems at least unwise.  
>> 
>> If you want a calendar date, find a different class.  Joda Time and Apache 
>> Commons would be a good place to start looking.  That would make  welcome 
>> and very useful contribution to Wonder.
>> 
>> 
>> Chuck and hating Java and Dates
>> 
>> 
>> 
>> On Sep 29, 2010, at 6:58 PM, Ramsey Lee Gurley wrote:
>>> On Sep 29, 2010, at 9:40 PM, Paul Hoadley wrote:
>>> On 30/09/2010, at 10:21 AM, Louis Demers wrote:
>>>> 
>>>>> In my app, when that's the behaviour I want, I zero out the data before 
>>>>> writing it to the database so  that subsequent checks for equality will 
>>>>> return values...
>>>> 
>>>> FWIW, I've found that the only clean solution to this problem is to 
>>>> abandon using timestamp types to represent a 1-day-resolution date.  In my 
>>>> experience, at least, zeroing out the time part only works until you start 
>>>> using multiple timezones.
>>> 
>>> Apple agrees with you Paul.
>>> 
>>> http://developer.apple.com/legacy/mac/library/documentation/InternetWeb/Reference/WO542Reference/index.html
>>> 
>>> Calendar dates should not be represented by NSTimestamp.  The Date 
>>> prototype is wrong for using it IMHO.
>>> 
>>> Ramsey
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>> 
>> -- 
>> Chuck Hill             Senior Consultant / VP Development
>> 
>> Practical WebObjects - for developers who want to increase their overall 
>> knowledge of WebObjects or who are trying to solve specific problems.    
>> http://www.global-village.net/products/practical_webobjects
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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> 

-- 
Chuck Hill             Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall 
knowledge of WebObjects or who are trying to solve specific problems.    
http://www.global-village.net/products/practical_webobjects







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