opencart new module

C:\op\domains\shop.loc\admin\controller\pricelist\price.php
<?php
class Controllerpricelistprice extends Controller {
    public function index() {
        $this->load->language('pricelist/price');

        $this->load->model('pricelist/price');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') ) {
            switch($this->request->post['cmd']){
            case 'markup':
                try {
            $this->model_pricelist_price->setMarkup(
                                        @$this->request->post['STOCK'],
                                        @$this->request->post['PRICE_S'],
                                        @$this->request->post['PRICE_E'],
                                        @$this->request->post['MARKUP'],
                                        @$this->request->post['DISCOUNT']
            );
                    } catch (Exception $e) {
                        echo 'Выброшено исключение: ',  $e->getMessage(), "\n";
                        }

            break;
            }
        }



        $data['price_markup'] = $this->model_pricelist_price->getMarkup();


        $this->document->setTitle($this->language->get('heading_title'));

        $data['heading_title'] = $this->language->get('heading_title');

        $data['markup_submit'] = $this->language->get('markup_submit');
        $data['markup_title'] = $this->language->get('markup_title');

        $data['breadcrumbs'] = array();

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('text_home'),
            'href' => $this->url->link('common/dashboard', 'token=' . $this->session->data['token'], true)
        );

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('heading_title'),
            'href' => $this->url->link('pricelist/price', 'token=' . $this->session->data['token'], true)
        );

        $data['header'] = $this->load->controller('common/header');
        $data['column_left'] = $this->load->controller('common/column_left');
        $data['footer'] = $this->load->controller('common/footer');


        $this->response->setOutput($this->load->view('pricelist/setting', $data));
    }
}
C:\op\domains\shop.loc\admin\language\ru-ru\pricelist\price.php
<?php
// Heading
$_['heading_title']  = 'Настройка прайс-листов!';
..

C:\op\domains\shop.loc\admin\model\pricelist\price.php

<?php
class Modelpricelistprice extends Model {
 public function setMarkup( $STOCK,
                            $PRICE_S,
                            $PRICE_E,
                            $MARKUP,
                            $DISCOUNT){
                           ..
        $this->db->query("UPDATE l..");



 }
  public function getMarkup(){
   $sql="SELECT * FROM `load_markup`";
   $query = $this->db->query($sql);
   return $query->rows;
 }
}

C:\op\domains\shop.loc\admin\view\template\pricelist\setting.tpl
<?php echo $header; ?><?php echo $column_left; ?>
<div id="content">
<div class="page-header">
  <div class="container-fluid">
    <h1><?php echo $heading_title; ?></h1>
    <ul class="breadcrumb">
      <?php foreach ($breadcrumbs as $breadcrumb) { ?>
      <li><a href="<?php echo $breadcrumb['href']; ?>"><?php echo $breadcrumb['text']; ?></a></li>
      <?php } ?>
    </ul>
  </div>
</div>
<div class="container-fluid">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h3 class="panel-title"><i class="fa fa-exclamation-triangle"></i> <?php echo $markup_title; ?></h3>
    </div>
    <div class="panel-body">
      <noscript>Включите JavaScript!</noscript>

            <?php foreach($price_markup as $val): ?>

            <option value='<?=$val['STOCK'];?>'><?=$val['STOCK'];?></option>
            ..
            <?php endforeach; ?>


    </div>
  </div>
</div>
<?php echo $footer; ?>