/**
* Retrieves max price.
*
* @return float
*/
public function getMaxPrice()
{
$Params = $this->getLayer()->getProductCollection()->getExtendedSearchParams();
$uniquePart = strtoupper(md5(serialize($Params)));
$cacheKey = 'MAXPRICE_' . $this->getLayer()->getStateKey() . '_' . $uniquePart;
$cachedData = Mage::app()->loadCache($cacheKey);
if (!$cachedData) {
$stats = $this->getLayer()->getProductCollection()->getStats($this->_getFilteredField());
$max = $stats[$this->_getFilteredField()]['max'];
if (!is_numeric($max)) {
$max = parent::getMaxPrice();
}
$cachedData = (double) $max;
$tags = $this->getLayer()->getStateTags();
$tags[] = self::CACHE_TAG;
Mage::app()->saveCache($cachedData, $cacheKey, $tags);
}
return $cachedData;
}
