/**
* creates formatted output for calendar component property trigger
*
* @author Kjell-Inge Gustafsson, kigkonsult <*****@*****.**>
* @since 2.4.16 - 2008-10-21
* @return string
*/
function createTrigger()
{
if (empty($this->trigger)) {
return FALSE;
}
if (empty($this->trigger['value'])) {
return $this->getConfig('allowEmpty') ? $this->_createElement('TRIGGER') : FALSE;
}
$content = $attributes = null;
if (isset($this->trigger['value']['year']) && isset($this->trigger['value']['month']) && isset($this->trigger['value']['day'])) {
$content .= iCal_UtilityFunctions::_format_date_time($this->trigger['value']);
} else {
if (TRUE !== $this->trigger['value']['relatedStart']) {
$attributes .= $this->intAttrDelimiter . 'RELATED=END';
}
if ($this->trigger['value']['before']) {
$content .= '-';
}
$content .= iCal_UtilityFunctions::_format_duration($this->trigger['value']);
}
$attributes .= $this->_createParams($this->trigger['params']);
return $this->_createElement('TRIGGER', $attributes, $content);
}