Indexer::getFilterPrices

protected function getFilterPrices()
{
	if (!isset($this->priceFilter))
	{
		$this->priceFilter = array();
		if (self::$catalog)
		{
			//TODO: replace CCatalogGroup::GetListArray after create cached d7 method
			$priceList = CCatalogGroup::GetListArray();
			if (!empty($priceList))
				$this->priceFilter = array_keys($priceList);
			unset($priceList);
		}
	}
	return $this->priceFilter;
}