catalog/controller/common/cart.php

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<?php
class ControllerCommonCart extends Controller {
	public function index() {
		$this->load->language('common/cart');

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

		$totals = array();
		$taxes = $this->cart->getTaxes();
		$total = 0;

		// Because __call can not keep var references so we put them into an array.
		$total_data = array(
			'totals' => &$totals,
			'taxes'  => &$taxes,
			'total'  => &$total
		);

		// Display prices
		if ($this->customer->isLogged() || !$this->config->get('config_customer_price')) {
			$sort_order = array();

			$results = $this->model_setting_extension->getExtensions('total');

			foreach ($results as $key => $value) {
				$sort_order[$key] = $this->config->get('total_' . $value['code'] . '_sort_order');
			}

			array_multisort($sort_order, SORT_ASC, $results);

			foreach ($results as $result) {
				if ($this->config->get('total_' . $result['code'] . '_status')) {
					$this->load->model('extension/total/' . $result['code']);

					// We have to put the totals in an array so that they pass by reference.
					$this->{'model_extension_total_' . $result['code']}->getTotal($total_data);
				}
			}

			$sort_order = array();

			foreach ($totals as $key => $value) {
				$sort_order[$key] = $value['sort_order'];
			}

			array_multisort($sort_order, SORT_ASC, $totals);
		}

		$data['text_items'] = sprintf($this->language->get('text_items'), $this->cart->countProducts() + (isset($this->session->data['vouchers']) ? count($this->session->data['vouchers']) : 0), $this->currency->format($total, $this->session->data['currency']));

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

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

		foreach ($this->cart->getProducts() as $product) {
			$image = $this->model_tool_image->resize($product['image'], $this->config->get('theme_' . $this->config->get('config_theme') . '_image_cart_width'), $this->config->get('theme_' . $this->config->get('config_theme') . '_image_cart_height'));

			$option_data = array();