Element::loadElementPrices

protected function loadElementPrices(array $productList)
{
	$priceList = BitrixCatalogPriceTable::getList(array(
		'select' => array('ID', 'PRODUCT_ID', 'CATALOG_GROUP_ID', 'PRICE', 'CURRENCY', 'QUANTITY_FROM', 'QUANTITY_TO'),
		'filter' => array('@PRODUCT_ID' => $productList)
	));
	while($price = $priceList->fetch())
	{
		if (!isset($this->elementPrices[$price["CATALOG_GROUP_ID"]][$price["CURRENCY"]]))
			$this->elementPrices[$price["CATALOG_GROUP_ID"]][$price["CURRENCY"]] = array();
		$priceValue = (float)$price["PRICE"];
		$this->elementPrices[$price["CATALOG_GROUP_ID"]][$price["CURRENCY"]][(string)$priceValue] = $priceValue;
	}
	unset($price);
	unset($priceList);

	foreach ($this->elementPrices as $catalogGroupId => $currencyPrices)
	{
		foreach ($currencyPrices as $currency => $prices)
		{
			if (count($prices) > 2)
			{
				$this->elementPrices[$catalogGroupId][$currency] = array(
					min($prices),
					max($prices),
				);
			}
		}
		unset($currency, $prices);
	}
	unset($catalogGroupId, $currencyPrices);
}