<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* A Date MIME Header for Swift Mailer.
*
* @author Chris Corbyn
*/
class Swift_Mime_Headers_DateHeader extends Swift_Mime_Headers_AbstractHeader
{
/**
* Date-time value of this Header.
*
* @var DateTimeImmutable
*/
private $dateTime;
/**
* Creates a new DateHeader with $name.
*
* @param string $name of Header
*/
public function __construct($name)
{
$this->setFieldName($name);
}
/**
* Get the type of Header that this instance represents.
*
* @see TYPE_TEXT, TYPE_PARAMETERIZED, TYPE_MAILBOX
* @see TYPE_DATE, TYPE_ID, TYPE_PATH
*
* @return int
*/
public function getFieldType()
{
return self::TYPE_DATE;
}
/**
* Set the model for the field body.
*
* @param DateTimeInterface $model
*/
public function setFieldBodyModel($model)
{
$this->setDateTime($model);
}
/**
* Get the model for the field body.
*
* @return DateTimeImmutable
*/
public function getFieldBodyModel()
{
return $this->getDateTime();
}
/**
* Get the date-time representing the Date in this Header.
*
* @return DateTimeImmutable
*/
public function getDateTime()
{
return $this->dateTime;
}
/**
* Set the date-time of the Date in this Header.
*
* If a DateTime instance is provided, it is converted to DateTimeImmutable.
*
* @param DateTimeInterface $dateTime
*/
public function setDateTime(DateTimeInterface $dateTime)
{
$this->clearCachedValueIf($this->getCachedValue() != $dateTime->format(DateTime::RFC2822));
if ($dateTime instanceof DateTime) {
$immutable = new DateTimeImmutable('@'.$dateTime->getTimestamp());
$dateTime = $immutable->setTimezone($dateTime->getTimezone());
}
$this->dateTime = $dateTime;
}
/**
* Get the string value of the body in this Header.
*
* This is not necessarily RFC 2822 compliant since folding white space will
* not be added at this stage (see {@link toString()} for that).
*
* @see toString()
*
* @return string
*/
public function getFieldBody()
{
if (!$this->getCachedValue()) {
if (isset($this->dateTime)) {
$this->setCachedValue($this->dateTime->format(DateTime::RFC2822));
}
}
return $this->getCachedValue();
}
}