public function automaticPublishUp($data)
	{
		if (!isset($data['publish_up']))
		{
			$data['publish_up'] = null;
		}

		$publish_up = $data['publish_up'];

		if (!$publish_up || $publish_up == '0000-00-00 00:00:00')
		{
			$publish_up = ($data['id'] ? $this->created : Date::of('now')->toSql());
		}

		return $publish_up;
	}