/**
*
*
* @return Double
*/
protected function LiveTotalWeight()
{
if (self::$total_weight === null) {
self::$total_weight = 0;
if ($this->useWeight()) {
if ($fieldName = Config::inst()->get('PickUpOrDeliveryModifier', 'weight_field')) {
$items = $this->Order()->Items();
//get index numbers for bonus products - this can only be done now once they have actually been added
if ($items && $items->count()) {
foreach ($items as $itemIndex => $item) {
$buyable = $item->Buyable();
if ($buyable) {
// Calculate the total weight of the order
if (!empty($buyable->{$fieldName}) && $item->Quantity) {
self::$total_weight += $buyable->{$fieldName} * $item->Quantity;
}
}
}
}
}
}
}
return self::$total_weight;
}
