Subtracts a number of seconds or units from this date, returning a new
Horde_Date object.
| public sub ( $factor ) |
public function testDateMath()
{
$d = new Horde_Date('2008-01-01 00:00:00');
$this->assertEquals('2007-12-31 00:00:00', (string) $d->sub(array('day' => 1)));
$this->assertEquals('2009-01-01 00:00:00', (string) $d->add(array('year' => 1)));
$this->assertEquals('2008-01-01 04:00:00', (string) $d->add(14400));
$span = new Horde_Date_Span('2006-01-01 00:00:00', '2006-08-16 00:00:00');
$this->assertEquals('2006-04-24 11:30:00', (string) $span->begin->add($span->width() / 2));
}
/**
* Test if the weekday of the given timestamp is the nth occurence of this
* weekday within its month, where '5' indicates the last occurrence even if
* there is less than five occurrences.
*
* @param integer $timestamp The timestamp to check.
* @param integer $occurence 1 to 5, where 5 indicates the final occurrence
* during the month if that day of the week does
* not occur 5 times
* @return boolean
*/
protected static function _isNthOcurrenceOfWeekdayInMonth($timestamp, $occurence)
{
$original = new Horde_Date($timestamp);
$original->setTimezone('UTC');
if ($occurence == 5) {
$modified = $original->add(array('mday' => 7));
return $modified->month > $original->month;
} else {
$modified = $original->sub(array('mday' => 7 * $occurence));
$modified2 = $original->sub(array('mday' => 7 * ($occurence - 1)));
return $modified->month < $original->month && $modified2->month == $original->month;
}
}
/**
* Subtract a number of seconds from this span, returning the new span.
*/
public function sub($factor)
{
return new Horde_Date_Span($this->begin->sub($factor), $this->end->sub($factor));
}
/**
* Generate the HTML for a vEvent.
*/
protected function _vEventException($vevent, $id, $method = 'PUBLISH')
{
global $prefs, $registry;
$attendees = null;
$options = array();
try {
if (($attendees = $vevent->getAttribute('ATTENDEE')) && !is_array($attendees)) {
$attendees = array($attendees);
}
} catch (Horde_Icalendar_Exception $e) {
}
$view = $this->_getViewOb();
try {
$start = $vevent->getAttribute('DTSTART');
$view->start = is_array($start) ? strftime($prefs->getValue('date_format'), mktime(0, 0, 0, $start['month'], $start['mday'], $start['year'])) : strftime($prefs->getValue('date_format'), $start) . ' ' . date($prefs->getValue('twentyFour') ? ' G:i' : ' g:i a', $start);
} catch (Horde_Icalendar_Exception $e) {
$start = null;
}
try {
$end = $vevent->getAttribute('DTEND');
// Check for exceptions that are over and done with.
$d = new Horde_Date($end);
if ($d->timestamp() < time()) {
return false;
}
$view->end = is_array($end) ? strftime($prefs->getValue('date_format'), mktime(0, 0, 0, $end['month'], $end['mday'], $end['year'])) : strftime($prefs->getValue('date_format'), $end) . ' ' . date($prefs->getValue('twentyFour') ? ' G:i' : ' g:i a', $end);
} catch (Horde_Icalendar_Exception $e) {
$end = null;
}
try {
$summary = $vevent->getAttribute('SUMMARY');
$view->summary = $summary;
} catch (Horde_Icalendar_Exception $e) {
$summary = _("Unknown Meeting");
$view->summary_error = _("None");
}
try {
$view->desc2 = $vevent->getAttribute('DESCRIPTION');
} catch (Horde_Icalendar_Exception $e) {
}
try {
$view->loc = $vevent->getAttribute('LOCATION');
} catch (Horde_Icalendar_Exception $e) {
}
if (!empty($attendees)) {
$view->attendees = $this->_parseAttendees($vevent, $attendees);
}
if (!is_null($start) && !is_null($end) && in_array($method, array('PUBLISH', 'REQUEST', 'ADD')) && $registry->hasMethod('calendar/getFbCalendars') && $registry->hasMethod('calendar/listEvents')) {
try {
$calendars = $registry->call('calendar/getFbCalendars');
$vevent_start = new Horde_Date($start);
$vevent_end = new Horde_Date($end);
// Check if it's an all-day event.
if (is_array($start)) {
$vevent_allDay = true;
$vevent_end = $vevent_end->sub(1);
} else {
$vevent_allDay = false;
$time_span_start = $vevent_start->sub($prefs->getValue('conflict_interval') * 60);
$time_span_end = $vevent_end->add($prefs->getValue('conflict_interval') * 60);
}
$events = $registry->call('calendar/listEvents', array($start, $vevent_end, $calendars, false));
// TODO: Check if there are too many events to show.
$conflicts = array();
foreach ($events as $calendar) {
foreach ($calendar as $event) {
// TODO: WTF? Why are we using Kronolith constants
// here?
if (in_array($event->status, array(Kronolith::STATUS_CANCELLED, Kronolith::STATUS_FREE))) {
continue;
}
if ($vevent_allDay || $event->isAllDay()) {
$type = 'collision';
} elseif ($event->end->compareDateTime($time_span_start) <= -1 || $event->start->compareDateTime($time_span_end) >= 1) {
continue;
} elseif ($event->end->compareDateTime($vevent_start) <= -1 || $event->start->compareDateTime($vevent_end) >= 1) {
$type = 'nearcollision';
} else {
$type = 'collision';
}
$conflicts[] = array('collision' => $type == 'collision', 'range' => $event->getTimeRange(), 'title' => $event->getTitle());
}
}
if (!empty($conflicts)) {
$view->conflicts = $conflicts;
}
} catch (Horde_Exception $e) {
}
}
if (!empty($options)) {
reset($options);
$view->options = $options;
$view->options_id = $id;
}
return $view->render('action');
}