invoice_printer_email.php

<?php
/**
 * Email invoice
 *
 * PHP version 5
 *
 * Copyright (C) 2010-2018 Ere Maijala
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2,
 * as published by the Free Software Foundation.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category MLInvoice
 * @package  MLInvoice\Base
 * @author   Ere Maijala <ere@labs.fi>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     http://labs.fi/mlinvoice.eng.php
 */
require_once 'invoice_printer_base.php';
require_once 'invoice_printer_email_trait.php';

/**
 * Email invoice
 *
 * @category MLInvoice
 * @package  MLInvoice\Base
 * @author   Ere Maijala <ere@labs.fi>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     http://labs.fi/mlinvoice.eng.php
 */
class InvoicePrinterEmail extends InvoicePrinterBase
{
    use InvoicePrinterEmailTrait;

    /**
     * Method that is called when the invoice has been sent
     *
     * @return void
     */
    protected function emailSent()
    {
        if ($this->invoiceData['state_id'] == 1) {
            // Mark invoice sent
            dbParamQuery(
                'UPDATE {prefix}invoice SET state_id=2 WHERE id=?',
                [
                    $this->invoiceId
                ]
            );
        }
    }
}