<?php
/**
 * Provides the discount class, an interface to the discount table in the database
 *
 * @author Camil Staps
 *
 * BusinessAdmin: administrative software for small companies
 * Copyright (C) 2015 Camil Staps (ViviSoft)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * An interface to the discount table in the database
 */
class Discount extends OfferItem {
	use StandardCalculatable;

	/** {@inheritDoc} */
	public
		$table = 'discount',
		$fillable_columns = ['offerId', 'title', 'description', 'value', 'VAT_percentage'];

	/** {@inheritDoc} */
	public function calculateSubtotal() {
		return - $this->value;
	}
}