/**
* Apply promotional rules
*
* @return $this
*/
public function applyPromotionalRules()
{
foreach ($this->promotionalRules->getAll() as $promotionalRule) {
if ($promotionalRule instanceof PromotionalRuleApplyInterface) {
if ($promotionalRule->needApply($this)) {
$promotionalRule->apply($this);
}
}
}
return $this;
}