code: @Indexable(type = IndexableType.REINDEX)
  	@Override
  	public CommerceDiscount addCommerceDiscount(
  		CommerceDiscount commerceDiscount) {
  		commerceDiscount.setNew(true);
  
  		return commerceDiscountPersistence.update(commerceDiscount);
  	}
docs: Adds the commerce discount to the database. Also notifies the appropriate model listeners.
  
  @param commerceDiscount the commerce discount
  @return the commerce discount that was added