Letter::loadData

public function loadData($id)
{
	$data = static::getList(array(
		'filter' => array(
			'=ID' => $id
		)
	))->fetch();
	if (!is_array($data))
	{
		return null;
	}

	$segments = $this->loadDataSegments($id);
	foreach ($segments as $typeCode => $list)
	{
		foreach($list as $item)
		{
			$data["SEGMENTS_$typeCode"][] = $item['ID'];
		}
	}

	return $data;
}