[dev] Infinite loops in Kronolith with certain recurring events.

[Michael Rubinsky]

Ok. This was a royal PITA.  This is what I found regarding the issues  
I was having with kronolith going into an endless loop with certain  
recurring events. It boils down to that fact that  
DateTime->format('W') returns the first week of the year for a date  
like 12/29/2008 so that when calculating the after_week and  
after_week_end values in nextRecurrnece() the after_week value is set  
to the first week of 2007. So the code chokes when calling  
nextRecurrence() with an after date of 12/29/08. Example code  
(basically code that is executed during nextRecurrence() and the  
methods it calls):

<code>
$after = new Horde_Date(array('year' => 2008, 'month' => 12, 'day' => 29));
$dt = new DateTime();
$dt->setDate($after->year, $after->month, $after->mday);
$dt->setTime($after->hour, $after->min, $after->sec);

//$weekNumber gets set to '01'
$weekNumber = $dt->format('W');

$after_week = Horde_Date::firstDayOfWeek($weekNumber, $after->year);

echo $after_week;

</code>

outputs 12/31/2007 instead of expected 12/29/08 (since that date IS  
the start of the week).

So, we need to check if the ->format('W') call rolls into the next  
year before we calculate $after_week.  I'll keep at it....just glad I  
finally nailed what was going on after way too many hours of digging :)



Thanks,
mike

--
The Horde Project (www.horde.org)
mrubinsk at horde.org

"Time just hates me. That's why it made me an adult." - Josh Joplin
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