/**
* Find surcharges for the current collection
* @return \Isotope\Model\ProductCollectionSurcharge[]
*/
public function getSurcharges()
{
if (null === $this->arrSurcharges) {
if ($this->isLocked()) {
$this->arrSurcharges = array();
if (($objSurcharges = ProductCollectionSurcharge::findBy('pid', $this->id)) !== null) {
$this->arrSurcharges = $objSurcharges->getModels();
}
} else {
$this->arrSurcharges = ProductCollectionSurcharge::findForCollection($this);
}
}
return $this->arrSurcharges;
}
