/**
* Render this calendar to a string in iCal format.
*
* \return
* String representation of this calendar
*/
function render()
{
$out = array();
$out[] = 'BEGIN:VCALENDAR';
$out[] = 'VERSION:2.0';
$out[] = sprintf('METHOD:%s', $this->method);
$out[] = sprintf('PRODID:%s', $this->generator);
$out[] = '';
foreach ($this->events as $event) {
$out[] = 'BEGIN:VEVENT';
/* Generation date */
$out[] = sprintf('DTSTAMP;VALUE=DATE:%s', AnewtDateTime::iso8601_compact(AnewtDateTime::now()));
/* Summary and description */
assert('!is_null($event->summary)');
$description = $event->description;
if (is_null($description)) {
$description = $event->summary;
}
$out[] = sprintf('SUMMARY:%s', AnewtCalendar::escape_string($event->summary, false));
$out[] = sprintf('DESCRIPTION:%s', AnewtCalendar::escape_string($description, true));
/* Unique ID */
$uid = $event->uid;
if (is_null($uid)) {
/* Generate a unique id */
$uid = strtoupper(sprintf('%s-%s', md5($event->summary), md5(AnewtDateTime::iso8601_compact($event->date_start))));
}
$out[] = sprintf('UID:%s', $uid);
/* Dates */
assert('$event->date_start instanceof AnewtDateTimeAtom');
$datestart_str = $event->all_day ? AnewtDateTime::iso8601_date_compact($event->date_start) : AnewtDateTime::iso8601_compact($event->date_start);
/* With time */
$out[] = sprintf('DTSTART;VALUE=DATE:%s', $datestart_str);
if (!is_null($event->date_end)) {
assert('$event->date_end instanceof AnewtDateTimeAtom');
$date_end_str = $event->all_day ? AnewtDateTime::iso8601_date_compact($event->date_end) : AnewtDateTime::iso8601_compact($event->date_end);
/* With time */
$out[] = sprintf('DTEND;VALUE=DATE:%s', $date_end_str);
}
$out[] = sprintf('TRANSP:%s', $event->transparent ? 'TRANSPARENT' : 'OPAQUE');
/* Misc */
if (!is_null($event->location)) {
$out[] = sprintf('LOCATION:%s', $event->location);
}
if (!is_null($event->url)) {
$out[] = sprintf('URL:%s', $event->url);
}
$out[] = 'END:VEVENT';
$out[] = '';
}
$out[] = 'END:VCALENDAR';
return implode(CRLF, $out);
}
/**
* Return a string representing this event.
*
* \return
* String with iCalender data.
*/
function to_ical()
{
$r = array();
$r[] = 'BEGIN:VEVENT';
/* Generation date */
$r[] = sprintf('DTSTAMP;VALUE=DATE:%s', AnewtDateTime::iso8601_compact(AnewtDateTime::now()));
/* Summary */
$r[] = sprintf('SUMMARY:%s', $this->get('summary'));
/* Description */
if (!$this->is_set('description')) {
$this->set('description', $this->get('summary'));
}
$r[] = sprintf('DESCRIPTION:%s', $this->get('description'));
/* Unique ID */
if (!$this->is_set('uid')) {
/* Generate a unique id */
$uid = strtoupper(sprintf('%s-%s', md5($this->get('summary')), md5(AnewtDateTime::iso8601_compact($this->get('datestart')))));
$this->set('uid', $uid);
}
$r[] = sprintf('UID:%s', $this->get('uid'));
/* All day event? */
$all_day = $this->get('all-day');
assert('is_bool($all_day)');
/* Start date */
$datestart = $this->get('datestart');
$datestart_str = $all_day ? AnewtDateTime::iso8601_date_compact($datestart) : AnewtDateTime::iso8601_compact($datestart);
/* with time */
$r[] = sprintf('DTSTART;VALUE=DATE:%s', $datestart_str);
/* End date */
if ($this->is_set('dateend')) {
$dateend = $this->get('dateend');
assert('$dateend instanceof AnewtDateTimeAtom');
$dateend_str = $all_day ? AnewtDateTime::iso8601_date_compact($dateend) : AnewtDateTime::iso8601_compact($dateend);
/* with time */
$r[] = sprintf('DTEND;VALUE=DATE:%s', $dateend_str);
}
/* Transparency */
$transparent = $this->getdefault('transparent', false);
assert('is_bool($transparent)');
$r[] = sprintf('TRANSP:%s', $transparent ? 'TRANSPARENT' : 'OPAQUE');
/* Location */
if ($this->is_set('location')) {
$r[] = sprintf('LOCATION:%s', $this->get('location'));
}
/* URL */
if ($this->is_set('url')) {
$r[] = sprintf('URL:%s', $this->get('url'));
}
$r[] = 'END:VEVENT';
$r[] = '';
return implode("\r\n", $r);
}
