Re[SOLVED]: WebObjects 5.3.3, DST, NSTimeZone
Re[SOLVED]: WebObjects 5.3.3, DST, NSTimeZone
- Subject: Re[SOLVED]: WebObjects 5.3.3, DST, NSTimeZone
- From: Baiss Eric Magnusson <email@hidden>
- Date: Sat, 10 Mar 2007 20:21:12 -0800
I used the below, it all makes sense, could be I really didn't need
all of it.
However, the problem ended up in the loop that created the repetitive
events.
Given:
GregorianCalendar dayForEventGC = new GregorianCalendar();
dayForEventGC.set( Calendar.YEAR, curYear ); ..etc.
I replaced the line
alteredEvent.setEventDate( new NSTimestamp( dayForEventGC.getTime()));
with
alteredEvent.setEventDate( new NSTimestamp( year, month, day, hour,
minute, 0, NSTimeZone.systemTimeZone() ));
On Mar 10, 2007, at 10:12 AM, George Domurot wrote:
I think you'll want something along the lines of:
// determine time zone
//
public NSTimeZone timeZoneObj() {
Number timezone = timeZone(); // get from the client via
javascript call to getTimezoneOffset()
if ( timezone == null ) return NSTimeZone.systemTimeZone();
int gmtOffset = timezone.intValue();
return NSTimeZone.timeZoneForSecondsFromGMT( gmtOffset );
} // end timeZoneObj
// prepare formatter
//
NSTimestampFormatter myTimestampFormatter;
myTimestampFormatter = new NSTimestampFormatter("%I:%M %p");
myTimestampFormatter.setDefaultFormatTimeZone(timeZone);
myTimestampFormatter.setDefaultParseTimeZone(timeZone);
Keep your WOString binding for value set to the NSTimestamp, and
the only other binding required is formatter to
myTimestampFormatter. You can also use this formatter for your
WOTextField (not as fancy as your pop-ups) with the same bindings.
On Mar 10, 2007, at 7:34 AM, George Domurot wrote:
Baiss:
If you use a formatter when displaying your time, or within a
text field for form entry, you don't have to worry about pushing
your Timestamp into the correct zone for display. The formatter
will take care of all the adjustments for you. With the formatter
you can stick to the data as it's stored and avoid converting it
into (or out of) GregorianCalendar.
-George
On Mar 9, 2007, at 10:54 AM, Mark Ritchie wrote:
On 7-Mar-07, at 11:34 AM, Baiss Eric Magnusson wrote:
It seems to me that I need to go back and associate a time
zone id for all my events.
and then use this
tz = NSTimestamp.....
NSTimestamp myNSTimestamp = new NSTimestamp(year, month, day,
hour, minute, seconds, tz)
Hi Baiss!
Use caution here! As had already been pointed out, NSTimestamp
does not store time zone information. I believe that the tz
argument in all the constructors is only used to interpret the
other arguments.
The docs say this for several of the constructors. The given
information is converted and stored as millisecond offset since
reference date in the reference timezone. That would be
January 1, 1970, 00:00:00 GMT.
As Ken pointed out, you might be better of storing the local
time and the time zone so that you can reconstruct the right
times. Alternatively, you might find:
timestampByAddingGregorianUnits(int years, int months, int
days, int hours, int minutes, int seconds) useful. The docs
say that it preserves time of day across DST changes.
timestampByAddingGregorianUnits in the docs.
public NSTimestamp timestampByAddingGregorianUnits( int year,
int month, int day, int hour, int minute, int second)
Deprecated in the Java Foundation framework. Don't use this method.
Hope that helps!
Mark
----
Baiss Eric Magnusson
<http://www.Track-Your-Finances.com>
<http://www.CascadeWebDesign.com>
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| References: | |
| | >WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Pascal Robert <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Ken Anderson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Chuck Hill <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Mark Ritchie <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: George Domurot <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: Baiss Eric Magnusson <email@hidden>) |
| | >Re: WebObjects 5.3.3, DST and J2SE 1.4.2 (From: George Domurot <email@hidden>) |