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fix Call to a member function format() on null caused by 9810077eab

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This commit is contained in:
Ralf Becker 2017-03-31 14:05:21 +02:00
parent d2d7040721
commit af6fe077dd
1 changed files with 4 additions and 0 deletions
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4
calendar/inc/class.calendar_rrule.inc.php
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@ -535,6 +535,10 @@ class calendar_rrule implements Iterator
*/
public function valid($use_just_date=false)
{
if (!$this->enddate)
{
return true;
}
if ($use_just_date)
{
return $this->current->format('Ymd') <= $this->enddate->format('Ymd');