Opencart 2.x Event name in called function - opencart2.x

Question

So I have 3 events who call the same function.
Would it be possible to obtain the event name directly in the function?
$this->model_extension_event->addEvent('postorderchange', 'post.order.edit', 'module/postorderchange/on_order_change');
$this->model_extension_event->addEvent('postorderchange', 'post.order.add', 'module/postorderchange/on_order_change');
$this->model_extension_event->addEvent('postorderchange', 'post.order.history.add', 'module/postorderchange/on_order_change');
I want to be able to get the name of the event in the on_order_change() function.

Answer 1

post.order.history.add event trigger the total/voucher/send action.
you can check send function in following file.
catalog/controller/total/voucher.php
Inside the function : -
public function send($order_id) {
$this->load->model('checkout/order');
$order_info = $this->model_checkout_order->getOrder($order_id);
// If order status in the complete range create any vouchers that where in the order need to be made available.
if (in_array($order_info['order_status_id'], $this->config->get('config_complete_status'))) {
$voucher_query = $this->db->query("SELECT *, vtd.name AS theme FROM `" . DB_PREFIX . "voucher` v LEFT JOIN " . DB_PREFIX . "voucher_theme vt ON (v.voucher_theme_id = vt.voucher_theme_id) LEFT JOIN " . DB_PREFIX . "voucher_theme_description vtd ON (vt.voucher_theme_id = vtd.voucher_theme_id) WHERE v.order_id = '" . (int)$order_info['order_id'] . "' AND vtd.language_id = '" . (int)$order_info['language_id'] . "'");
if ($voucher_query->num_rows) {
// Send out any gift voucher mails
$language = new Language($order_info['language_directory']);
$language->load($order_info['language_directory']);
$language->load('mail/voucher');
foreach ($voucher_query->rows as $voucher) {
// HTML Mail
$data = array();
$data['title'] = sprintf($language->get('text_subject'), $voucher['from_name']);
$data['text_greeting'] = sprintf($language->get('text_greeting'), $this->currency->format($voucher['amount'], $order_info['currency_code'], $order_info['currency_value']));
$data['text_from'] = sprintf($language->get('text_from'), $voucher['from_name']);
$data['text_message'] = $language->get('text_message');
$data['text_redeem'] = sprintf($language->get('text_redeem'), $voucher['code']);
$data['text_footer'] = $language->get('text_footer');
if (is_file(DIR_IMAGE . $voucher['image'])) {
$data['image'] = $this->config->get('config_url') . 'image/' . $voucher['image'];
} else {
$data['image'] = '';
}
$data['store_name'] = $order_info['store_name'];
$data['store_url'] = $order_info['store_url'];
$data['message'] = nl2br($voucher['message']);
if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/mail/voucher.tpl')) {
$html = $this->load->view($this->config->get('config_template') . '/template/mail/voucher.tpl', $data);
} else {
$html = $this->load->view('default/template/mail/voucher.tpl', $data);
}
$mail = new Mail();
$mail->protocol = $this->config->get('config_mail_protocol');
$mail->parameter = $this->config->get('config_mail_parameter');
$mail->smtp_hostname = $this->config->get('config_mail_smtp_hostname');
$mail->smtp_username = $this->config->get('config_mail_smtp_username');
$mail->smtp_password = html_entity_decode($this->config->get('config_mail_smtp_password'), ENT_QUOTES, 'UTF-8');
$mail->smtp_port = $this->config->get('config_mail_smtp_port');
$mail->smtp_timeout = $this->config->get('config_mail_smtp_timeout');
$mail->setTo($voucher['to_email']);
$mail->setFrom($this->config->get('config_email'));
$mail->setSender(html_entity_decode($order_info['store_name'], ENT_QUOTES, 'UTF-8'));
$mail->setSubject(html_entity_decode(sprintf($language->get('text_subject'), $voucher['from_name']), ENT_QUOTES, 'UTF-8'));
$mail->setHtml($html);
$mail->send();
}
}
}
}
You can modified here..