/**
* Increase / decrease product inventory amount
*
* @param integer $delta Amount delta
*
* @return void
*/
public function changeAmount($delta)
{
if ($this->getVariant() && !$this->getVariant()->getDefaultAmount()) {
$this->getVariant()->changeAmount($delta);
} else {
parent::changeAmount($delta);
}
}
/**
* Change product quantity in stock
*
* @param \XLite\Model\OrderItem $entity Order item entity
*
* @return void
*/
protected function changeItemAmountInStock($entity)
{
if (isset($this->orderItemsData[$entity->getItemId()]['amount']) && $entity->getAmount() != $this->orderItemsData[$entity->getItemId()]['amount']) {
// Calculate amount to update stock: negative when qty was increased and positive when decreased
$delta = $this->orderItemsData[$entity->getItemId()]['amount'] - $entity->getAmount();
// Update stock
$entity->changeAmount($delta);
}
}
/**
* {@inheritDoc}
*/
public function changeAmount($delta)
{
$this->__initializer__ && $this->__initializer__->__invoke($this, 'changeAmount', array($delta));
return parent::changeAmount($delta);
}
