news opencart

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

    public function index() {
        $this->language->load('extension/news');

        $this->load->model('extension/news');

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

        $url = '';

        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/home', 'token=' . $this->session->data['token'], 'SSL')
        );

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

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

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

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

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

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

        $url = '';

        $filter_data = array(
            'page' => $page,
            'limit' => $this->config->get('config_limit_admin'),
            'start' => $this->config->get('config_limit_admin') * ($page - 1),
        );

        $total = $this->model_extension_news->getTotalNews();

        $pagination = new Pagination();
        $pagination->total = $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'), ($total) ? (($page - 1) * $this->config->get('config_limit_admin')) + 1 : 0, ((($page - 1) * $this->config->get('config_limit_admin')) > ($total - $this->config->get('config_limit_admin'))) ? $total : ((($page - 1) * $this->config->get('config_limit_admin')) + $this->config->get('config_limit_admin')), $total, ceil($total / $this->config->get('config_limit_admin')));

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

        $data['text_title'] = $this->language->get('text_title');
        $data['text_short_description'] = $this->language->get('text_short_description');
        $data['text_date'] = $this->language->get('text_date');
        $data['text_action'] = $this->language->get('text_action');
        $data['text_edit'] = $this->language->get('text_edit');
        $data['text_list'] = $this->language->get('text_list');
        $data['text_no_results'] = $this->language->get('text_no_results');
        $data['text_confirm'] = $this->language->get('text_confirm');

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

        $url = '';

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

        $data['add'] = $this->url->link('extension/news/insert', '&token=' . $this->session->data['token'] . $url, 'SSL');
        $data['delete'] = $this->url->link('extension/news/delete', 'token=' . $this->session->data['token'] . $url, 'SSL');

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

        $all_news = $this->model_extension_news->getAllNews($filter_data);

        foreach ($all_news as $news) {
            $data['all_news'][] = array (
                'news_id'           => $news['news_id'],
                'title'             => $news['title'],
                'short_description' => $news['short_description'],
                'date_added'        => date($this->language->get('date_format_short'), strtotime($news['date_added'])),
                'edit'              => $this->url->link('extension/news/edit', 'news_id=' . $news['news_id'] . '&token=' . $this->session->data['token'] . $url, 'SSL')
            );
        }

        $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('extension/news_list.tpl', $data));
    }

    public function edit() {
        $this->language->load('extension/news');

        $this->load->model('extension/news');

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

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validate()) {
            $this->model_extension_news->editNews($this->request->get['news_id'], $this->request->post);

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

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

        $this->form();
    }

    public function insert() {
        $this->language->load('extension/news');

        $this->load->model('extension/news');

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

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validate()) {
            $this->model_extension_news->addNews($this->request->post);

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

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

        $this->form();
    }

    protected function form() {
        $this->language->load('extension/news');

        $this->load->model('extension/news');

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

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

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

        if (isset($this->request->get['news_id'])) {
            $data['action'] = $this->url->link('extension/news/edit', '&news_id=' . $this->request->get['news_id'] . '&token=' . $this->session->data['token'], 'SSL');
        } else {
            $data['action'] = $this->url->link('extension/news/insert', '&token=' . $this->session->data['token'], 'SSL');
        }

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

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

        $data['text_image'] = $this->language->get('text_image');
        $data['text_title'] = $this->language->get('text_title');
        $data['text_description'] = $this->language->get('text_description');
        $data['text_short_description'] = $this->language->get('text_short_description');
        $data['text_status'] = $this->language->get('text_status');
        $data['text_keyword'] = $this->language->get('text_keyword');
        $data['text_enabled'] = $this->language->get('text_enabled');
        $data['text_disabled'] = $this->language->get('text_disabled');
        $data['text_browse'] = $this->language->get('text_browse');
        $data['text_clear'] = $this->language->get('text_clear');
        $data['text_image_manager'] = $this->language->get('text_image_manager');

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

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

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

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

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

        if (isset($this->request->get['news_id'])) {
            $news = $this->model_extension_news->getNews($this->request->get['news_id']);
        } else {
            $news = array();
        }

        if (isset($this->request->post['news'])) {
            $data['news'] = $this->request->post['news'];
        } elseif (!empty($news)) {
            $data['news'] = $this->model_extension_news->getNewsDescription($this->request->get['news_id']);
        } else {
            $data['news'] = '';
        }

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

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

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

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

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

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

        $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('extension/news_form.tpl', $data));
    }

    public function delete() {
        $this->language->load('extension/news');

        $this->load->model('extension/news');

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

        if (isset($this->request->post['selected']) && $this->validateDelete()) {
            foreach ($this->request->post['selected'] as $news_id) {
                $this->model_extension_news->deleteNews($news_id);
            }

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

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

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

        if (!$this->error) {
            return true;
        } else {
            return false;
        }
    }

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

        if (!$this->error) {
            return true;
        } else {
            return false;
        }
    }
}