code: @Override
  	public com.liferay.commerce.discount.model.CommerceDiscountRule updateCommerceDiscountRule(
  		com.liferay.commerce.discount.model.CommerceDiscountRule commerceDiscountRule) {
  		return _commerceDiscountRuleLocalService.updateCommerceDiscountRule(commerceDiscountRule);
  	}
docs: Updates the commerce discount rule in the database or adds it if it does not yet exist. Also notifies the appropriate model listeners.
  
  @param commerceDiscountRule the commerce discount rule
  @return the commerce discount rule that was updated