IcalendarPropertyAttendee.php

<?php

class IcalendarPropertyAttendee extends IcalendarProperty
{
	public $name = 'ATTENDEE';
	public $val_type = RFC2445_TYPE_CAL_ADDRESS;

	public function construct()
	{
		$this->valid_parameters = [
			'LANGUAGE' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'CN' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'ROLE' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'PARTSTAT' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'RSVP' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'CUTYPE' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'MEMBER' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'DELEGATED-TO' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'DELEGATED-FROM' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'SENT-BY' => RFC2445_OPTIONAL | RFC2445_ONCE,
			'DIR' => RFC2445_OPTIONAL | RFC2445_ONCE,
			RFC2445_XNAME => RFC2445_OPTIONAL,
		];
	}

	public function setParentComponent($componentname)
	{
		if (!parent::setParentComponent($componentname)) {
			return false;
		}

		if ($this->parent_component == 'VFREEBUSY' || $this->parent_component == 'VALARM') {
			// Most parameters become invalid in this case, the full allowed set is now:
			$this->valid_parameters = [
				'LANGUAGE' => RFC2445_OPTIONAL | RFC2445_ONCE,
				RFC2445_XNAME => RFC2445_OPTIONAL,
			];
		}

		return false;
	}
}