public function markAsRead()
	{
		if (!$this->get('id'))
		{
			$this->addError('Recipient record not found');
			return false;
		}

		$xseen = Seen::oneByMessageAndUser($this->get('mid'), $this->get('uid'));

		if ($xseen->get('whenseen') == ''
		 || $xseen->get('whenseen') == '0000-00-00 00:00:00'
		 || $xseen->get('whenseen') == null)
		{
			$dt = new Date('now');

			$xseen->set('mid', $this->get('mid'));
			$xseen->set('uid', $this->get('uid'));
			$xseen->set('whenseen', $dt->toSql());
			if (!$xseen->save())
			{
				$this->addError($xseen->getError());
				return false;
			}
		}

		return true;
	}