OCmod bug

[mhcwebdesign]

As first reported on the OpenCart forum (http://forum.opencart.com/viewtopic.php?f=2&t=134922&p=530629#p530579). This OCmod-XML causes the additions to go into the wrong places, only the first instance ends up in the right place:

    <?xml version="1.0" encoding="utf-8"?>
    <modification>
        <name>Testing</name>
        <code>random</code>
        <version>1.0</version>
        <author>opencart</author>
        <link>http://opencart.com</link>

        <file path="admin/controller/catalog/product.php">
          <operation>
             <search><![CDATA[
                $this->load->language('catalog/product');
                ]]></search>
             <add position="before"><![CDATA[
                $this->load->language('path/path');
             ]]></add>
          </operation>
        </file>
    </modification>

Tested on OpenCart 2.0.1.0 as well as the latest OpenCart 2.0.1.1.

It resulted in this wrong system/modification/admin/controller/catalog/product.php:

<?php
class ControllerCatalogProduct extends Controller {
    private $error = array();

    public function index() {

            $this->load->language('path/path');

        $this->load->language('catalog/product');

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

        $this->load->model('catalog/product');

        $this->getList();

            $this->load->language('path/path');

    }

    public function add() {
        $this->load->language('catalog/product');

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

        $this->load->model('catalog/product');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validateForm()) {
            $this->model_catalog_product->addProduct($this->request->post);

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['filter_name'])) {
                $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_price'])) {
                $url .= '&filter_price=' . $this->request->get['filter_price'];
            }

            if (isset($this->request->get['filter_quantity'])) {
                $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
            }

            if (isset($this->request->get['filter_status'])) {
                $url .= '&filter_status=' . $this->request->get['filter_status'];
            }

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url, 'SSL'));

            $this->load->language('path/path');

        }

        $this->getForm();
    }

    public function edit() {
        $this->load->language('catalog/product');

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

        $this->load->model('catalog/product');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validateForm()) {
            $this->model_catalog_product->editProduct($this->request->get['product_id'], $this->request->post);

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['filter_name'])) {
                $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_price'])) {
                $url .= '&filter_price=' . $this->request->get['filter_price'];
            }

            if (isset($this->request->get['filter_quantity'])) {
                $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
            }

            if (isset($this->request->get['filter_status'])) {
                $url .= '&filter_status=' . $this->request->get['filter_status'];
            }

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];

            $this->load->language('path/path');

            }

            $this->response->redirect($this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url, 'SSL'));
        }

        $this->getForm();
    }

    public function delete() {
        $this->load->language('catalog/product');

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

        $this->load->model('catalog/product');

        if (isset($this->request->post['selected']) && $this->validateDelete()) {
            foreach ($this->request->post['selected'] as $product_id) {
                $this->model_catalog_product->deleteProduct($product_id);
            }

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['filter_name'])) {
                $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_price'])) {
                $url .= '&filter_price=' . $this->request->get['filter_price'];
            }

            if (isset($this->request->get['filter_quantity'])) {
                $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
            }

            if (isset($this->request->get['filter_status'])) {
                $url .= '&filter_status=' . $this->request->get['filter_status'];
            }

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            $this->load->language('path/path');


            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url, 'SSL'));
        }

        $this->getList();
    }

    public function copy() {
        $this->load->language('catalog/product');

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

        $this->load->model('catalog/product');

        if (isset($this->request->post['selected']) && $this->validateCopy()) {
            foreach ($this->request->post['selected'] as $product_id) {
                $this->model_catalog_product->copyProduct($product_id);
            }

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['filter_name'])) {
                $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_price'])) {
                $url .= '&filter_price=' . $this->request->get['filter_price'];
            }

            if (isset($this->request->get['filter_quantity'])) {
                $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
            }

            if (isset($this->request->get['filter_status'])) {
                $url .= '&filter_status=' . $this->request->get['filter_status'];
            }

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url, 'SSL'));
        }

        $this->getList();
    }

    protected function getList() {
        if (isset($this->request->get['filter_name'])) {
            $filter_name = $this->request->get['filter_name'];
        } else {
            $filter_name = null;
        }

        if (isset($this->request->get['filter_model'])) {
            $filter_model = $this->request->get['filter_model'];
        } else {
            $filter_model = null;
        }

        if (isset($this->request->get['filter_price'])) {
            $filter_price = $this->request->get['filter_price'];
        } else {
            $filter_price = null;
        }

        if (isset($this->request->get['filter_quantity'])) {
            $filter_quantity = $this->request->get['filter_quantity'];
        } else {
            $filter_quantity = null;
        }

        if (isset($this->request->get['filter_status'])) {
            $filter_status = $this->request->get['filter_status'];
        } else {
            $filter_status = null;
        }

        if (isset($this->request->get['sort'])) {
            $sort = $this->request->get['sort'];
        } else {
            $sort = 'pd.name';
        }

        if (isset($this->request->get['order'])) {
            $order = $this->request->get['order'];
        } else {
            $order = 'ASC';
        }

        if (isset($this->request->get['page'])) {
            $page = $this->request->get['page'];
        } else {
            $page = 1;
        }

        $url = '';

        if (isset($this->request->get['filter_name'])) {
            $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_price'])) {
            $url .= '&filter_price=' . $this->request->get['filter_price'];
        }

        if (isset($this->request->get['filter_quantity'])) {
            $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
        }

        if (isset($this->request->get['filter_status'])) {
            $url .= '&filter_status=' . $this->request->get['filter_status'];
        }

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

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

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

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

        $data['add'] = $this->url->link('catalog/product/add', 'token=' . $this->session->data['token'] . $url, 'SSL');
        $data['copy'] = $this->url->link('catalog/product/copy', 'token=' . $this->session->data['token'] . $url, 'SSL');
        $data['delete'] = $this->url->link('catalog/product/delete', 'token=' . $this->session->data['token'] . $url, 'SSL');

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

        $filter_data = array(
            'filter_name'     => $filter_name,
            'filter_model'    => $filter_model,
            'filter_price'    => $filter_price,
            'filter_quantity' => $filter_quantity,
            'filter_status'   => $filter_status,
            'sort'            => $sort,
            'order'           => $order,
            'start'           => ($page - 1) * $this->config->get('config_limit_admin'),
            'limit'           => $this->config->get('config_limit_admin')
        );

        $this->load->model('tool/image');

        $product_total = $this->model_catalog_product->getTotalProducts($filter_data);

        $results = $this->model_catalog_product->getProducts($filter_data);

        foreach ($results as $result) {
            if (is_file(DIR_IMAGE . $result['image'])) {
                $image = $this->model_tool_image->resize($result['image'], 40, 40);
            } else {
                $image = $this->model_tool_image->resize('no_image.png', 40, 40);
            }

            $special = false;

            $product_specials = $this->model_catalog_product->getProductSpecials($result['product_id']);

            foreach ($product_specials  as $product_special) {
                if (($product_special['date_start'] == '0000-00-00' || $product_special['date_start'] < date('Y-m-d')) && ($product_special['date_end'] == '0000-00-00' || $product_special['date_end'] > date('Y-m-d'))) {
                    $special = $product_special['price'];

                    break;
                }
            }

            $data['products'][] = array(
                'product_id' => $result['product_id'],
                'image'      => $image,
                'name'       => $result['name'],
                'model'      => $result['model'],
                'price'      => $result['price'],
                'special'    => $special,
                'quantity'   => $result['quantity'],
                'status'     => ($result['status']) ? $this->language->get('text_enabled') : $this->language->get('text_disabled'),
                'edit'       => $this->url->link('catalog/product/edit', 'token=' . $this->session->data['token'] . '&product_id=' . $result['product_id'] . $url, 'SSL')
            );
        }

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

        $data['text_list'] = $this->language->get('text_list');
        $data['text_enabled'] = $this->language->get('text_enabled');
        $data['text_disabled'] = $this->language->get('text_disabled');
        $data['text_no_results'] = $this->language->get('text_no_results');
        $data['text_confirm'] = $this->language->get('text_confirm');

        $data['column_image'] = $this->language->get('column_image');
        $data['column_name'] = $this->language->get('column_name');
        $data['column_model'] = $this->language->get('column_model');
        $data['column_price'] = $this->language->get('column_price');
        $data['column_quantity'] = $this->language->get('column_quantity');
        $data['column_status'] = $this->language->get('column_status');
        $data['column_action'] = $this->language->get('column_action');

        $data['entry_name'] = $this->language->get('entry_name');
        $data['entry_model'] = $this->language->get('entry_model');
        $data['entry_price'] = $this->language->get('entry_price');
        $data['entry_quantity'] = $this->language->get('entry_quantity');
        $data['entry_status'] = $this->language->get('entry_status');

        $data['button_copy'] = $this->language->get('button_copy');
        $data['button_add'] = $this->language->get('button_add');
        $data['button_edit'] = $this->language->get('button_edit');
        $data['button_delete'] = $this->language->get('button_delete');
        $data['button_filter'] = $this->language->get('button_filter');

        $data['token'] = $this->session->data['token'];

        if (isset($this->error['warning'])) {
            $data['error_warning'] = $this->error['warning'];
        } else {
            $data['error_warning'] = '';
        }

        if (isset($this->session->data['success'])) {
            $data['success'] = $this->session->data['success'];

            unset($this->session->data['success']);
        } else {
            $data['success'] = '';
        }

        if (isset($this->request->post['selected'])) {
            $data['selected'] = (array)$this->request->post['selected'];
        } else {
            $data['selected'] = array();
        }

        $url = '';

        if (isset($this->request->get['filter_name'])) {
            $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_price'])) {
            $url .= '&filter_price=' . $this->request->get['filter_price'];
        }

        if (isset($this->request->get['filter_quantity'])) {
            $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
        }

        if (isset($this->request->get['filter_status'])) {
            $url .= '&filter_status=' . $this->request->get['filter_status'];
        }

        if ($order == 'ASC') {
            $url .= '&order=DESC';
        } else {
            $url .= '&order=ASC';
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

        $data['sort_name'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=pd.name' . $url, 'SSL');
        $data['sort_model'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=p.model' . $url, 'SSL');
        $data['sort_price'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=p.price' . $url, 'SSL');
        $data['sort_quantity'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=p.quantity' . $url, 'SSL');
        $data['sort_status'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=p.status' . $url, 'SSL');
        $data['sort_order'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . '&sort=p.sort_order' . $url, 'SSL');

        $url = '';

        if (isset($this->request->get['filter_name'])) {
            $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_price'])) {
            $url .= '&filter_price=' . $this->request->get['filter_price'];
        }

        if (isset($this->request->get['filter_quantity'])) {
            $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
        }

        if (isset($this->request->get['filter_status'])) {
            $url .= '&filter_status=' . $this->request->get['filter_status'];
        }

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        $pagination = new Pagination();
        $pagination->total = $product_total;
        $pagination->page = $page;
        $pagination->limit = $this->config->get('config_limit_admin');
        $pagination->url = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url . '&page={page}', 'SSL');

        $data['pagination'] = $pagination->render();

        $data['results'] = sprintf($this->language->get('text_pagination'), ($product_total) ? (($page - 1) * $this->config->get('config_limit_admin')) + 1 : 0, ((($page - 1) * $this->config->get('config_limit_admin')) > ($product_total - $this->config->get('config_limit_admin'))) ? $product_total : ((($page - 1) * $this->config->get('config_limit_admin')) + $this->config->get('config_limit_admin')), $product_total, ceil($product_total / $this->config->get('config_limit_admin')));

        $data['filter_name'] = $filter_name;
        $data['filter_model'] = $filter_model;
        $data['filter_price'] = $filter_price;
        $data['filter_quantity'] = $filter_quantity;
        $data['filter_status'] = $filter_status;

        $data['sort'] = $sort;
        $data['order'] = $order;

        $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('catalog/product_list.tpl', $data));
    }

    protected function getForm() {
        $data['heading_title'] = $this->language->get('heading_title');

        $data['text_form'] = !isset($this->request->get['product_id']) ? $this->language->get('text_add') : $this->language->get('text_edit');
        $data['text_enabled'] = $this->language->get('text_enabled');
        $data['text_disabled'] = $this->language->get('text_disabled');
        $data['text_none'] = $this->language->get('text_none');
        $data['text_yes'] = $this->language->get('text_yes');
        $data['text_no'] = $this->language->get('text_no');
        $data['text_plus'] = $this->language->get('text_plus');
        $data['text_minus'] = $this->language->get('text_minus');
        $data['text_default'] = $this->language->get('text_default');
        $data['text_option'] = $this->language->get('text_option');
        $data['text_option_value'] = $this->language->get('text_option_value');
        $data['text_select'] = $this->language->get('text_select');
        $data['text_percent'] = $this->language->get('text_percent');
        $data['text_amount'] = $this->language->get('text_amount');

        $data['entry_name'] = $this->language->get('entry_name');
        $data['entry_description'] = $this->language->get('entry_description');
        $data['entry_meta_title'] = $this->language->get('entry_meta_title');
        $data['entry_meta_description'] = $this->language->get('entry_meta_description');
        $data['entry_meta_keyword'] = $this->language->get('entry_meta_keyword');
        $data['entry_keyword'] = $this->language->get('entry_keyword');
        $data['entry_model'] = $this->language->get('entry_model');
        $data['entry_sku'] = $this->language->get('entry_sku');
        $data['entry_upc'] = $this->language->get('entry_upc');
        $data['entry_ean'] = $this->language->get('entry_ean');
        $data['entry_jan'] = $this->language->get('entry_jan');
        $data['entry_isbn'] = $this->language->get('entry_isbn');
        $data['entry_mpn'] = $this->language->get('entry_mpn');
        $data['entry_location'] = $this->language->get('entry_location');
        $data['entry_minimum'] = $this->language->get('entry_minimum');
        $data['entry_shipping'] = $this->language->get('entry_shipping');
        $data['entry_date_available'] = $this->language->get('entry_date_available');
        $data['entry_quantity'] = $this->language->get('entry_quantity');
        $data['entry_stock_status'] = $this->language->get('entry_stock_status');
        $data['entry_price'] = $this->language->get('entry_price');
        $data['entry_tax_class'] = $this->language->get('entry_tax_class');
        $data['entry_points'] = $this->language->get('entry_points');
        $data['entry_option_points'] = $this->language->get('entry_option_points');
        $data['entry_subtract'] = $this->language->get('entry_subtract');
        $data['entry_weight_class'] = $this->language->get('entry_weight_class');
        $data['entry_weight'] = $this->language->get('entry_weight');
        $data['entry_dimension'] = $this->language->get('entry_dimension');
        $data['entry_length_class'] = $this->language->get('entry_length_class');
        $data['entry_length'] = $this->language->get('entry_length');
        $data['entry_width'] = $this->language->get('entry_width');
        $data['entry_height'] = $this->language->get('entry_height');
        $data['entry_image'] = $this->language->get('entry_image');
        $data['entry_store'] = $this->language->get('entry_store');
        $data['entry_manufacturer'] = $this->language->get('entry_manufacturer');
        $data['entry_download'] = $this->language->get('entry_download');
        $data['entry_category'] = $this->language->get('entry_category');
        $data['entry_filter'] = $this->language->get('entry_filter');
        $data['entry_related'] = $this->language->get('entry_related');
        $data['entry_attribute'] = $this->language->get('entry_attribute');
        $data['entry_text'] = $this->language->get('entry_text');
        $data['entry_option'] = $this->language->get('entry_option');
        $data['entry_option_value'] = $this->language->get('entry_option_value');
        $data['entry_required'] = $this->language->get('entry_required');
        $data['entry_sort_order'] = $this->language->get('entry_sort_order');
        $data['entry_status'] = $this->language->get('entry_status');
        $data['entry_date_start'] = $this->language->get('entry_date_start');
        $data['entry_date_end'] = $this->language->get('entry_date_end');
        $data['entry_priority'] = $this->language->get('entry_priority');
        $data['entry_tag'] = $this->language->get('entry_tag');
        $data['entry_customer_group'] = $this->language->get('entry_customer_group');
        $data['entry_reward'] = $this->language->get('entry_reward');
        $data['entry_layout'] = $this->language->get('entry_layout');
        $data['entry_recurring'] = $this->language->get('entry_recurring');

        $data['help_keyword'] = $this->language->get('help_keyword');
        $data['help_sku'] = $this->language->get('help_sku');
        $data['help_upc'] = $this->language->get('help_upc');
        $data['help_ean'] = $this->language->get('help_ean');
        $data['help_jan'] = $this->language->get('help_jan');
        $data['help_isbn'] = $this->language->get('help_isbn');
        $data['help_mpn'] = $this->language->get('help_mpn');
        $data['help_minimum'] = $this->language->get('help_minimum');
        $data['help_manufacturer'] = $this->language->get('help_manufacturer');
        $data['help_stock_status'] = $this->language->get('help_stock_status');
        $data['help_points'] = $this->language->get('help_points');
        $data['help_category'] = $this->language->get('help_category');
        $data['help_filter'] = $this->language->get('help_filter');
        $data['help_download'] = $this->language->get('help_download');
        $data['help_related'] = $this->language->get('help_related');
        $data['help_tag'] = $this->language->get('help_tag');

        $data['button_save'] = $this->language->get('button_save');
        $data['button_cancel'] = $this->language->get('button_cancel');
        $data['button_attribute_add'] = $this->language->get('button_attribute_add');
        $data['button_option_add'] = $this->language->get('button_option_add');
        $data['button_option_value_add'] = $this->language->get('button_option_value_add');
        $data['button_discount_add'] = $this->language->get('button_discount_add');
        $data['button_special_add'] = $this->language->get('button_special_add');
        $data['button_image_add'] = $this->language->get('button_image_add');
        $data['button_remove'] = $this->language->get('button_remove');
        $data['button_recurring_add'] = $this->language->get('button_recurring_add');

        $data['tab_general'] = $this->language->get('tab_general');
        $data['tab_data'] = $this->language->get('tab_data');
        $data['tab_attribute'] = $this->language->get('tab_attribute');
        $data['tab_option'] = $this->language->get('tab_option');
        $data['tab_recurring'] = $this->language->get('tab_recurring');
        $data['tab_discount'] = $this->language->get('tab_discount');
        $data['tab_special'] = $this->language->get('tab_special');
        $data['tab_image'] = $this->language->get('tab_image');
        $data['tab_links'] = $this->language->get('tab_links');
        $data['tab_reward'] = $this->language->get('tab_reward');
        $data['tab_design'] = $this->language->get('tab_design');
        $data['tab_openbay'] = $this->language->get('tab_openbay');

        if (isset($this->error['warning'])) {
            $data['error_warning'] = $this->error['warning'];
        } else {
            $data['error_warning'] = '';
        }

        if (isset($this->error['name'])) {
            $data['error_name'] = $this->error['name'];
        } else {
            $data['error_name'] = array();
        }

        if (isset($this->error['meta_title'])) {
            $data['error_meta_title'] = $this->error['meta_title'];
        } else {
            $data['error_meta_title'] = array();
        }

        if (isset($this->error['model'])) {
            $data['error_model'] = $this->error['model'];
        } else {
            $data['error_model'] = '';
        }

        if (isset($this->error['date_available'])) {
            $data['error_date_available'] = $this->error['date_available'];
        } else {
            $data['error_date_available'] = '';
        }

        if (isset($this->error['keyword'])) {
            $data['error_keyword'] = $this->error['keyword'];
        } else {
            $data['error_keyword'] = '';
        }

        $url = '';

        if (isset($this->request->get['filter_name'])) {
            $url .= '&filter_name=' . urlencode(html_entity_decode($this->request->get['filter_name'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_price'])) {
            $url .= '&filter_price=' . $this->request->get['filter_price'];
        }

        if (isset($this->request->get['filter_quantity'])) {
            $url .= '&filter_quantity=' . $this->request->get['filter_quantity'];
        }

        if (isset($this->request->get['filter_status'])) {
            $url .= '&filter_status=' . $this->request->get['filter_status'];
        }

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

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

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

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

        if (!isset($this->request->get['product_id'])) {
            $data['action'] = $this->url->link('catalog/product/add', 'token=' . $this->session->data['token'] . $url, 'SSL');
        } else {
            $data['action'] = $this->url->link('catalog/product/edit', 'token=' . $this->session->data['token'] . '&product_id=' . $this->request->get['product_id'] . $url, 'SSL');
        }

        $data['cancel'] = $this->url->link('catalog/product', 'token=' . $this->session->data['token'] . $url, 'SSL');

        if (isset($this->request->get['product_id']) && ($this->request->server['REQUEST_METHOD'] != 'POST')) {
            $product_info = $this->model_catalog_product->getProduct($this->request->get['product_id']);
        }

        $data['token'] = $this->session->data['token'];

        $this->load->model('localisation/language');

        $data['languages'] = $this->model_localisation_language->getLanguages();

        if (isset($this->request->post['product_description'])) {
            $data['product_description'] = $this->request->post['product_description'];
        } elseif (isset($this->request->get['product_id'])) {
            $data['product_description'] = $this->model_catalog_product->getProductDescriptions($this->request->get['product_id']);
        } else {
            $data['product_description'] = array();
        }

        if (isset($this->request->post['image'])) {
            $data['image'] = $this->request->post['image'];
        } elseif (!empty($product_info)) {
            $data['image'] = $product_info['image'];
        } else {
            $data['image'] = '';
        }

        $this->load->model('tool/image');

        if (isset($this->request->post['image']) && is_file(DIR_IMAGE . $this->request->post['image'])) {
            $data['thumb'] = $this->model_tool_image->resize($this->request->post['image'], 100, 100);
        } elseif (!empty($product_info) && is_file(DIR_IMAGE . $product_info['image'])) {
            $data['thumb'] = $this->model_tool_image->resize($product_info['image'], 100, 100);
        } else {
            $data['thumb'] = $this->model_tool_image->resize('no_image.png', 100, 100);
        }

        $data['placeholder'] = $this->model_tool_image->resize('no_image.png', 100, 100);

        if (isset($this->request->post['model'])) {
            $data['model'] = $this->request->post['model'];
        } elseif (!empty($product_info)) {
            $data['model'] = $product_info['model'];
        } else {
            $data['model'] = '';
        }

        if (isset($this->request->post['sku'])) {
            $data['sku'] = $this->request->post['sku'];
        } elseif (!empty($product_info)) {
            $data['sku'] = $product_info['sku'];
        } else {
            $data['sku'] = '';
        }

        if (isset($this->request->post['upc'])) {
            $data['upc'] = $this->request->post['upc'];
        } elseif (!empty($product_info)) {
            $data['upc'] = $product_info['upc'];
        } else {
            $data['upc'] = '';
        }

        if (isset($this->request->post['ean'])) {
            $data['ean'] = $this->request->post['ean'];
        } elseif (!empty($product_info)) {
            $data['ean'] = $product_info['ean'];
        } else {
            $data['ean'] = '';
        }

        if (isset($this->request->post['jan'])) {
            $data['jan'] = $this->request->post['jan'];
        } elseif (!empty($product_info)) {
            $data['jan'] = $product_info['jan'];
        } else {
            $data['jan'] = '';
        }

        if (isset($this->request->post['isbn'])) {
            $data['isbn'] = $this->request->post['isbn'];
        } elseif (!empty($product_info)) {
            $data['isbn'] = $product_info['isbn'];
        } else {
            $data['isbn'] = '';
        }

        if (isset($this->request->post['mpn'])) {
            $data['mpn'] = $this->request->post['mpn'];
        } elseif (!empty($product_info)) {
            $data['mpn'] = $product_info['mpn'];
        } else {
            $data['mpn'] = '';
        }

        if (isset($this->request->post['location'])) {
            $data['location'] = $this->request->post['location'];
        } elseif (!empty($product_info)) {
            $data['location'] = $product_info['location'];
        } else {
            $data['location'] = '';
        }

        $this->load->model('setting/store');

        $data['stores'] = $this->model_setting_store->getStores();

        if (isset($this->request->post['product_store'])) {
            $data['product_store'] = $this->request->post['product_store'];
        } elseif (isset($this->request->get['product_id'])) {
            $data['product_store'] = $this->model_catalog_product->getProductStores($this->request->get['product_id']);
        } else {
            $data['product_store'] = array(0);
        }

        if (isset($this->request->post['keyword'])) {
            $data['keyword'] = $this->request->post['keyword'];
        } elseif (!empty($product_info)) {
            $data['keyword'] = $product_info['keyword'];
        } else {
            $data['keyword'] = '';
        }

        if (isset($this->request->post['shipping'])) {
            $data['shipping'] = $this->request->post['shipping'];
        } elseif (!empty($product_info)) {
            $data['shipping'] = $product_info['shipping'];
        } else {
            $data['shipping'] = 1;
        }

        if (isset($this->request->post['price'])) {
            $data['price'] = $this->request->post['price'];
        } elseif (!empty($product_info)) {
            $data['price'] = $product_info['price'];
        } else {
            $data['price'] = '';
        }

        $this->load->model('catalog/recurring');

        $data['recurrings'] = $this->model_catalog_recurring->getRecurrings();

        if (isset($this->request->post['product_recurrings'])) {
            $data['product_recurrings'] = $this->request->post['product_recurrings'];
        } elseif (!empty($product_info)) {
            $data['product_recurrings'] = $this->model_catalog_product->getRecurrings($product_info['product_id']);
        } else {
            $data['product_recurrings'] = array();
        }

        $this->load->model('localisation/tax_class');

        $data['tax_classes'] = $this->model_localisation_tax_class->getTaxClasses();

        if (isset($this->request->post['tax_class_id'])) {
            $data['tax_class_id'] = $this->request->post['tax_class_id'];
        } elseif (!empty($product_info)) {
            $data['tax_class_id'] = $product_info['tax_class_id'];
        } else {
            $data['tax_class_id'] = 0;
        }

        if (isset($this->request->post['date_available'])) {
            $data['date_available'] = $this->request->post['date_available'];
        } elseif (!empty($product_info)) {
            $data['date_available'] = ($product_info['date_available'] != '0000-00-00') ? $product_info['date_available'] : '';
        } else {
            $data['date_available'] = date('Y-m-d');
        }

        if (isset($this->request->post['quantity'])) {
            $data['quantity'] = $this->request->post['quantity'];
        } elseif (!empty($product_info)) {
            $data['quantity'] = $product_info['quantity'];
        } else {
            $data['quantity'] = 1;
        }

        if (isset($this->request->post['minimum'])) {
            $data['minimum'] = $this->request->post['minimum'];
        } elseif (!empty($product_info)) {
            $data['minimum'] = $product_info['minimum'];
        } else {
            $data['minimum'] = 1;
        }

        if (isset($this->request->post['subtract'])) {
            $data['subtract'] = $this->request->post['subtract'];
        } elseif (!empty($product_info)) {
            $data['subtract'] = $product_info['subtract'];
        } else {
            $data['subtract'] = 1;
        }

        if (isset($this->request->post['sort_order'])) {
            $data['sort_order'] = $this->request->post['sort_order'];
        } elseif (!empty($product_info)) {
            $data['sort_order'] = $product_info['sort_order'];
        } else {
            $data['sort_order'] = 1;
        }

        $this->load->model('localisation/stock_status');

        $data['stock_statuses'] = $this->model_localisation_stock_status->getStockStatuses();

        if (isset($this->request->post['stock_status_id'])) {
            $data['stock_status_id'] = $this->request->post['stock_status_id'];
        } elseif (!empty($product_info)) {
            $data['stock_status_id'] = $product_info['stock_status_id'];
        } else {
            $data['stock_status_id'] = 0;
        }

        if (isset($this->request->post['status'])) {
            $data['status'] = $this->request->post['status'];
        } elseif (!empty($product_info)) {
            $data['status'] = $product_info['status'];
        } else {
            $data['status'] = true;
        }

        if (isset($this->request->post['weight'])) {
            $data['weight'] = $this->request->post['weight'];
        } elseif (!empty($product_info)) {
            $data['weight'] = $product_info['weight'];
        } else {
            $data['weight'] = '';
        }

        $this->load->model('localisation/weight_class');

        $data['weight_classes'] = $this->model_localisation_weight_class->getWeightClasses();

        if (isset($this->request->post['weight_class_id'])) {
            $data['weight_class_id'] = $this->request->post['weight_class_id'];
        } elseif (!empty($product_info)) {
            $data['weight_class_id'] = $product_info['weight_class_id'];
        } else {
            $data['weight_class_id'] = $this->config->get('config_weight_class_id');
        }

        if (isset($this->request->post['length'])) {
            $data['length'] = $this->request->post['length'];
        } elseif (!empty($product_info)) {
            $data['length'] = $product_info['length'];
        } else {
            $data['length'] = '';
        }

        if (isset($this->request->post['width'])) {
            $data['width'] = $this->request->post['width'];
        } elseif (!empty($product_info)) {
            $data['width'] = $product_info['width'];
        } else {
            $data['width'] = '';
        }

        if (isset($this->request->post['height'])) {
            $data['height'] = $this->request->post['height'];
        } elseif (!empty($product_info)) {
            $data['height'] = $product_info['height'];
        } else {
            $data['height'] = '';
        }

        $this->load->model('localisation/length_class');

        $data['length_classes'] = $this->model_localisation_length_class->getLengthClasses();

        if (isset($this->request->post['length_class_id'])) {
            $data['length_class_id'] = $this->request->post['length_class_id'];
        } elseif (!empty($product_info)) {
            $data['length_class_id'] = $product_info['length_class_id'];
        } else {
            $data['length_class_id'] = $this->config->get('config_length_class_id');
        }

        $this->load->model('catalog/manufacturer');

        if (isset($this->request->post['manufacturer_id'])) {
            $data['manufacturer_id'] = $this->request->post['manufacturer_id'];
        } elseif (!empty($product_info)) {
            $data['manufacturer_id'] = $product_info['manufacturer_id'];
        } else {
            $data['manufacturer_id'] = 0;
        }

        if (isset($this->request->post['manufacturer'])) {
            $data['manufacturer'] = $this->request->post['manufacturer'];
        } elseif (!empty($product_info)) {
            $manufacturer_info = $this->model_catalog_manufacturer->getManufacturer($product_info['manufacturer_id']);

            if ($manufacturer_info) {
                $data['manufacturer'] = $manufacturer_info['name'];
            } else {
                $data['manufacturer'] = '';
            }
        } else {
            $data['manufacturer'] = '';
        }

        // Categories
        $this->load->model('catalog/category');

        if (isset($this->request->post['product_category'])) {
            $categories = $this->request->post['product_category'];
        } elseif (isset($this->request->get['product_id'])) {
            $categories = $this->model_catalog_product->getProductCategories($this->request->get['product_id']);
        } else {
            $categories = array();
        }

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

        foreach ($categories as $category_id) {
            $category_info = $this->model_catalog_category->getCategory($category_id);

            if ($category_info) {
                $data['product_categories'][] = array(
                    'category_id' => $category_info['category_id'],
                    'name' => ($category_info['path']) ? $category_info['path'] . ' &gt; ' . $category_info['name'] : $category_info['name']
                );
            }
        }

        // Filters
        $this->load->model('catalog/filter');

        if (isset($this->request->post['product_filter'])) {
            $filters = $this->request->post['product_filter'];
        } elseif (isset($this->request->get['product_id'])) {
            $filters = $this->model_catalog_product->getProductFilters($this->request->get['product_id']);
        } else {
            $filters = array();
        }

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

        foreach ($filters as $filter_id) {
            $filter_info = $this->model_catalog_filter->getFilter($filter_id);

            if ($filter_info) {
                $data['product_filters'][] = array(
                    'filter_id' => $filter_info['filter_id'],
                    'name'      => $filter_info['group'] . ' &gt; ' . $filter_info['name']
                );
            }
        }

        // Attributes
        $this->load->model('catalog/attribute');

        if (isset($this->request->post['product_attribute'])) {
            $product_attributes = $this->request->post['product_attribute'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_attributes = $this->model_catalog_product->getProductAttributes($this->request->get['product_id']);
        } else {
            $product_attributes = array();
        }

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

        foreach ($product_attributes as $product_attribute) {
            $attribute_info = $this->model_catalog_attribute->getAttribute($product_attribute['attribute_id']);

            if ($attribute_info) {
                $data['product_attributes'][] = array(
                    'attribute_id'                  => $product_attribute['attribute_id'],
                    'name'                          => $attribute_info['name'],
                    'product_attribute_description' => $product_attribute['product_attribute_description']
                );
            }
        }

        // Options
        $this->load->model('catalog/option');

        if (isset($this->request->post['product_option'])) {
            $product_options = $this->request->post['product_option'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_options = $this->model_catalog_product->getProductOptions($this->request->get['product_id']);
        } else {
            $product_options = array();
        }

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

        foreach ($product_options as $product_option) {
            $product_option_value_data = array();

            if (isset($product_option['product_option_value'])) {
                foreach ($product_option['product_option_value'] as $product_option_value) {
                    $product_option_value_data[] = array(
                        'product_option_value_id' => $product_option_value['product_option_value_id'],
                        'option_value_id'         => $product_option_value['option_value_id'],
                        'quantity'                => $product_option_value['quantity'],
                        'subtract'                => $product_option_value['subtract'],
                        'price'                   => $product_option_value['price'],
                        'price_prefix'            => $product_option_value['price_prefix'],
                        'points'                  => $product_option_value['points'],
                        'points_prefix'           => $product_option_value['points_prefix'],
                        'weight'                  => $product_option_value['weight'],
                        'weight_prefix'           => $product_option_value['weight_prefix']
                    );
                }
            }

            $data['product_options'][] = array(
                'product_option_id'    => $product_option['product_option_id'],
                'product_option_value' => $product_option_value_data,
                'option_id'            => $product_option['option_id'],
                'name'                 => $product_option['name'],
                'type'                 => $product_option['type'],
                'value'                => isset($product_option['value']) ? $product_option['value'] : '',
                'required'             => $product_option['required']
            );
        }

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

        foreach ($data['product_options'] as $product_option) {
            if ($product_option['type'] == 'select' || $product_option['type'] == 'radio' || $product_option['type'] == 'checkbox' || $product_option['type'] == 'image') {
                if (!isset($data['option_values'][$product_option['option_id']])) {
                    $data['option_values'][$product_option['option_id']] = $this->model_catalog_option->getOptionValues($product_option['option_id']);
                }
            }
        }

        $this->load->model('sale/customer_group');

        $data['customer_groups'] = $this->model_sale_customer_group->getCustomerGroups();

        if (isset($this->request->post['product_discount'])) {
            $product_discounts = $this->request->post['product_discount'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_discounts = $this->model_catalog_product->getProductDiscounts($this->request->get['product_id']);
        } else {
            $product_discounts = array();
        }

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

        foreach ($product_discounts as $product_discount) {
            $data['product_discounts'][] = array(
                'customer_group_id' => $product_discount['customer_group_id'],
                'quantity'          => $product_discount['quantity'],
                'priority'          => $product_discount['priority'],
                'price'             => $product_discount['price'],
                'date_start'        => ($product_discount['date_start'] != '0000-00-00') ? $product_discount['date_start'] : '',
                'date_end'          => ($product_discount['date_end'] != '0000-00-00') ? $product_discount['date_end'] : ''
            );
        }

        if (isset($this->request->post['product_special'])) {
            $product_specials = $this->request->post['product_special'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_specials = $this->model_catalog_product->getProductSpecials($this->request->get['product_id']);
        } else {
            $product_specials = array();
        }

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

        foreach ($product_specials as $product_special) {
            $data['product_specials'][] = array(
                'customer_group_id' => $product_special['customer_group_id'],
                'priority'          => $product_special['priority'],
                'price'             => $product_special['price'],
                'date_start'        => ($product_special['date_start'] != '0000-00-00') ? $product_special['date_start'] : '',
                'date_end'          => ($product_special['date_end'] != '0000-00-00') ? $product_special['date_end'] :  ''
            );
        }

        // Images
        if (isset($this->request->post['product_image'])) {
            $product_images = $this->request->post['product_image'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_images = $this->model_catalog_product->getProductImages($this->request->get['product_id']);
        } else {
            $product_images = array();
        }

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

        foreach ($product_images as $product_image) {
            if (is_file(DIR_IMAGE . $product_image['image'])) {
                $image = $product_image['image'];
                $thumb = $product_image['image'];
            } else {
                $image = '';
                $thumb = 'no_image.png';
            }

            $data['product_images'][] = array(
                'image'      => $image,
                'thumb'      => $this->model_tool_image->resize($thumb, 100, 100),
                'sort_order' => $product_image['sort_order']
            );
        }

        // Downloads
        $this->load->model('catalog/download');

        if (isset($this->request->post['product_download'])) {
            $product_downloads = $this->request->post['product_download'];
        } elseif (isset($this->request->get['product_id'])) {
            $product_downloads = $this->model_catalog_product->getProductDownloads($this->request->get['product_id']);
        } else {
            $product_downloads = array();
        }

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

        foreach ($product_downloads as $download_id) {
            $download_info = $this->model_catalog_download->getDownload($download_id);

            if ($download_info) {
                $data['product_downloads'][] = array(
                    'download_id' => $download_info['download_id'],
                    'name'        => $download_info['name']
                );
            }
        }

        if (isset($this->request->post['product_related'])) {
            $products = $this->request->post['product_related'];
        } elseif (isset($this->request->get['product_id'])) {
            $products = $this->model_catalog_product->getProductRelated($this->request->get['product_id']);
        } else {
            $products = array();
        }

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

        foreach ($products as $product_id) {
            $related_info = $this->model_catalog_product->getProduct($product_id);

            if ($related_info) {
                $data['product_relateds'][] = array(
                    'product_id' => $related_info['product_id'],
                    'name'       => $related_info['name']
                );
            }
        }

        if (isset($this->request->post['points'])) {
            $data['points'] = $this->request->post['points'];
        } elseif (!empty($product_info)) {
            $data['points'] = $product_info['points'];
        } else {
            $data['points'] = '';
        }

        if (isset($this->request->post['product_reward'])) {
            $data['product_reward'] = $this->request->post['product_reward'];
        } elseif (isset($this->request->get['product_id'])) {
            $data['product_reward'] = $this->model_catalog_product->getProductRewards($this->request->get['product_id']);
        } else {
            $data['product_reward'] = array();
        }

        if (isset($this->request->post['product_layout'])) {
            $data['product_layout'] = $this->request->post['product_layout'];
        } elseif (isset($this->request->get['product_id'])) {
            $data['product_layout'] = $this->model_catalog_product->getProductLayouts($this->request->get['product_id']);
        } else {
            $data['product_layout'] = array();
        }

        $this->load->model('design/layout');

        $data['layouts'] = $this->model_design_layout->getLayouts();

        $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('catalog/product_form.tpl', $data));
    }

    protected function validateForm() {
        if (!$this->user->hasPermission('modify', 'catalog/product')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }

        foreach ($this->request->post['product_description'] as $language_id => $value) {
            if ((utf8_strlen($value['name']) < 3) || (utf8_strlen($value['name']) > 255)) {
                $this->error['name'][$language_id] = $this->language->get('error_name');
            }

            if ((utf8_strlen($value['meta_title']) < 3) || (utf8_strlen($value['meta_title']) > 255)) {
                $this->error['meta_title'][$language_id] = $this->language->get('error_meta_title');
            }
        }

        if ((utf8_strlen($this->request->post['model']) < 1) || (utf8_strlen($this->request->post['model']) > 64)) {
            $this->error['model'] = $this->language->get('error_model');
        }

        if (utf8_strlen($this->request->post['keyword']) > 0) {
            $this->load->model('catalog/url_alias');

            $url_alias_info = $this->model_catalog_url_alias->getUrlAlias($this->request->post['keyword']);

            if ($url_alias_info && isset($this->request->get['product_id']) && $url_alias_info['query'] != 'product_id=' . $this->request->get['product_id']) {
                $this->error['keyword'] = sprintf($this->language->get('error_keyword'));
            }

            if ($url_alias_info && !isset($this->request->get['product_id'])) {
                $this->error['keyword'] = sprintf($this->language->get('error_keyword'));
            }
        }

        if ($this->error && !isset($this->error['warning'])) {
            $this->error['warning'] = $this->language->get('error_warning');
        }

        return !$this->error;
    }

    protected function validateDelete() {
        if (!$this->user->hasPermission('modify', 'catalog/product')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }

        return !$this->error;
    }

    protected function validateCopy() {
        if (!$this->user->hasPermission('modify', 'catalog/product')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }

        return !$this->error;
    }

    public function autocomplete() {
        $json = array();

        if (isset($this->request->get['filter_name']) || isset($this->request->get['filter_model'])) {
            $this->load->model('catalog/product');
            $this->load->model('catalog/option');

            if (isset($this->request->get['filter_name'])) {
                $filter_name = $this->request->get['filter_name'];
            } else {
                $filter_name = '';
            }

            if (isset($this->request->get['filter_model'])) {
                $filter_model = $this->request->get['filter_model'];
            } else {
                $filter_model = '';
            }

            if (isset($this->request->get['limit'])) {
                $limit = $this->request->get['limit'];
            } else {
                $limit = 5;
            }

            $filter_data = array(
                'filter_name'  => $filter_name,
                'filter_model' => $filter_model,
                'start'        => 0,
                'limit'        => $limit
            );

            $results = $this->model_catalog_product->getProducts($filter_data);

            foreach ($results as $result) {
                $option_data = array();

                $product_options = $this->model_catalog_product->getProductOptions($result['product_id']);

                foreach ($product_options as $product_option) {
                    $option_info = $this->model_catalog_option->getOption($product_option['option_id']);

                    if ($option_info) {
                        $product_option_value_data = array();

                        foreach ($product_option['product_option_value'] as $product_option_value) {
                            $option_value_info = $this->model_catalog_option->getOptionValue($product_option_value['option_value_id']);

                            if ($option_value_info) {
                                $product_option_value_data[] = array(
                                    'product_option_value_id' => $product_option_value['product_option_value_id'],
                                    'option_value_id'         => $product_option_value['option_value_id'],
                                    'name'                    => $option_value_info['name'],
                                    'price'                   => (float)$product_option_value['price'] ? $this->currency->format($product_option_value['price'], $this->config->get('config_currency')) : false,
                                    'price_prefix'            => $product_option_value['price_prefix']
                                );
                            }
                        }

                        $option_data[] = array(
                            'product_option_id'    => $product_option['product_option_id'],
                            'product_option_value' => $product_option_value_data,
                            'option_id'            => $product_option['option_id'],
                            'name'                 => $option_info['name'],
                            'type'                 => $option_info['type'],
                            'value'                => $product_option['value'],
                            'required'             => $product_option['required']
                        );
                    }
                }

                $json[] = array(
                    'product_id' => $result['product_id'],
                    'name'       => strip_tags(html_entity_decode($result['name'], ENT_QUOTES, 'UTF-8')),
                    'model'      => $result['model'],
                    'option'     => $option_data,
                    'price'      => $result['price']
                );
            }
        }

        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }
}

[mhcwebdesign]

Here is my proposed bugfix for admin/controller/extension/modification.php:

                                    .......
                                    // Search and replace
                                    if ($operation->getElementsByTagName('search')->item(0)->getAttribute('regex') != 'true') {
                                        // Search
                                        $search = $operation->getElementsByTagName('search')->item(0)->textContent;
                                        $trim = $operation->getElementsByTagName('search')->item(0)->getAttribute('trim');
                                        $index = $operation->getElementsByTagName('search')->item(0)->getAttribute('index');

                                        // Trim line if no trim attribute is set or is set to true.
                                        if (!$trim || $trim == 'true') {
                                            $search = trim($search);
                                        }

                                        // Add
                                        $add = $operation->getElementsByTagName('add')->item(0)->textContent;
                                        $trim = $operation->getElementsByTagName('add')->item(0)->getAttribute('trim');
                                        $position = $operation->getElementsByTagName('add')->item(0)->getAttribute('position');
                                        $offset = $operation->getElementsByTagName('add')->item(0)->getAttribute('offset');
                                        if ($offset=='') {
                                            $offset = '0';
                                        }

                                        // Trim line if is set to true.
                                        if ($trim == 'true') {
                                            $add = trim($add);
                                        }

                                        // Log
                                        $log[] = 'CODE: ' . $search;

                                        // Check if using indexes
                                        if ($index !== '') {
                                            $indexes = explode(',', $index);
                                        } else {
                                            $indexes = array();
                                        }

                                        // Get all the matches
                                        $i = 0;

                                        $lines = explode("\n", $modification[$key]);

                                        for ($line_id=0; $line_id<count($lines); $line_id+=1) {
                                            $line = $lines[$line_id];

                                            // Status
                                            $match = false;

                                            // Check to see if the line matches the search code.
                                            if (stripos($line, $search) !== false) {
                                                // If indexes are not used then just set the found status to true.
                                                if (!$indexes) {
                                                    $match = true;
                                                } elseif (in_array($i, $indexes)) {
                                                    $match = true;
                                                }

                                                $i++;
                                            }

                                            // Now for replacing or adding to the matched elements
                                            if ($match) {
                                                switch ($position) {
                                                    default:
                                                    case 'replace':
                                                        if ($offset < 0) {
                                                            array_splice($lines, $line_id + $offset, abs($offset)+1, array(str_replace($search, $add, $line)));
                                                            $line_id -= $offset;
                                                        } else {
                                                            array_splice($lines, $line_id, $offset + 1, array(str_replace($search, $add, $line)));
                                                        }
                                                        break;
                                                    case 'before':
                                                        $new_lines = explode("\n", $add);
                                                        array_splice($lines, $line_id - $offset, 0, $new_lines);
                                                        $line_id += count($new_lines);
                                                        break;
                                                    case 'after':
                                                        array_splice($lines, ($line_id + 1) + $offset, 0, explode("\n", $add));
                                                        break;
                                                }

                                                // Log
                                                $log[] = 'LINE: ' . $line_id;

                                                $status = true;                                     
                                            }
                                        }

                                        $modification[$key] = implode("\n", $lines);
                                    } else {                                    
                                    ........

[mhcwebdesign]

I also came across another bug when using negative offsets for replace operations, as demonstrated by the OCmod-XML file below. With a replace-operation and a negative offset, the specified lines before the match, AND the matched line itself, should be replaced. I have updated my proposed bugfix in above post to take care of this issue, too.

<?xml version="1.0" encoding="utf-8"?>
<modification>
    <name>Testing</name>
    <code>random</code>
    <version>1.0</version>
    <author>opencart</author>
    <link>http://opencart.com</link>

    <file path="admin/controller/catalog/product.php">
      <operation>
         <search><![CDATA[
            $this->document->setTitle($this->language->get('heading_title'));
            ]]></search>
         <add position="replace" offset="-2"><![CDATA[/*...*/
        $this->load->language('catalog/product'); /*replacement*/
        $this->load->language('path/path'); /*replacement*/
        $this->document->setTitle($this->language->get('heading_title')); /*replacement*/
  /*...*/]]></add>
      </operation>
    </file>
</modification>