Вот сам класс seo:
<?php
class ModelToolSeoUrl extends Model {
public function rewrite($link, $action = '') {
if (!$this->config->get('config_seo_url')) return $link;
$url_query = parse_url(str_replace('&', '&', $link), PHP_URL_QUERY);
$data = array();
parse_str($url_query, $data);
$seo_url_postfix = ($this->config->get('config_seo_url_auto') == '1') ? '/' : '';
if (array_key_exists('product_id', $data)) {
$url = $this->getProductSeoUrl($data['product_id']);
if ($this->config->get('config_seo_url_replace')) {
$url = str_replace(' ', '_', $url);
}
if (strpos($url, '&') === false) $url .= $seo_url_postfix;
return rtrim(HTTP_SERVER, '/') . str_replace('&', '&', $url);
} elseif (array_key_exists('path', $data)) {
$parts = explode('_', $data['path']);
$category_id = array_pop($parts);
$path = $this->getPath($category_id);
if ($path === false && $action == 'validate') return false;
if ($data['path'] != $path) {
$data['path'] = $path;
$link = HTTP_SERVER . 'index.php?' . urldecode(http_build_query($data));
}
}
$url = '';
foreach ($data as $key => $value) {
switch ($key)
{
case 'manufacturer_id':
case 'information_id':
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "url_alias WHERE `query` = '" . $this->db->escape($key . '=' . (int)$value) . "'");
if ($query->num_rows) {
$url .= '/' . $query->row['keyword'];
unset($data[$key]);
}
break;
case 'path':
$seo_path = $this->getSeoPath($value);
if (!$seo_path) return $link;
$url .= $seo_path;
unset($data[$key]);
break;
default:
break;
}
}
if (!$url) return $link;
unset($data['route']);
$query = sizeof($data) ? '?' . urldecode(http_build_query($data)) : '';
if ($this->config->get('config_seo_url_replace')) {
$url = str_replace(' ', '_', $url);
}
$url = str_replace('&', '&', $url);
return rtrim(HTTP_SERVER, '/') . $url . $seo_url_postfix . $query;
}
private function getPath($category_id) {
$category_id = (int)$category_id;
if ($category_id < 1) return false;
$path = $this->cache->get('category.seo.path.' . $category_id . '.' . (int)$this->config->get('config_store_id'));
if ($path === null) {
$path = '';
$max_level = 30;
$sql = "SELECT CONCAT_WS('_'";
for ($i = $max_level-1; $i >= 0; --$i) $sql .= ",t$i.category_id";
$sql .= ") AS path FROM " . DB_PREFIX . "category t0";
for ($i = 1; $i < $max_level; ++$i) {
$sql .= " LEFT JOIN " . DB_PREFIX . "category t$i ON (t$i.category_id = t" . ($i-1) . ".parent_id)";
}
$sql .= " WHERE t0.category_id = '" . $category_id . "'";
$query = $this->db->query($sql);
$path = $query->num_rows ? $query->row['path'] : false;
$this->cache->set('category.seo.path.' . $category_id . '.' . (int)$this->config->get('config_store_id'), $path);
}
return $path;
}
private function getSeoPath($path) {
$seo_path = $this->cache->get('category.seo.' . $path . '.' . (int)$this->config->get('config_store_id'));
if ($seo_path === null) {
$seo_path = '';
$categories = explode('_', $path);
foreach ($categories as $category) {
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "url_alias WHERE `query` = 'category_id=" . (int)$category . "'");
if ($query->num_rows) {
$seo_path .= '/' . $query->row['keyword'];
} else {
$seo_path = false;
break;
}
}
$this->cache->set('category.seo.' . $path . '.' . (int)$this->config->get('config_store_id'), $seo_path);
}
return $seo_path;
}
private function getProductSeoUrl($product_id) {
$product_id = (int)$product_id;
if ($product_id < 1) return false;
$seo_url = $this->cache->get('product.seo.' . $product_id . '.' . (int)$this->config->get('config_store_id'));
if ($seo_url === null) {
$seo_url = false;
$query = $this->db->query("SELECT IFNULL(p.main_category_id, p2c.category_id) AS category_id FROM " . DB_PREFIX . "product AS p JOIN " . DB_PREFIX . "product_to_category AS p2c USING (product_id) WHERE p.product_id = '" . (int)$product_id . "' LIMIT 1");
if ($query->num_rows) {
$category_id = (int)$query->row['category_id'];
if ($path = $this->getPath($category_id)) {
$product_alias = '';
if ($seo_path = $this->getSeoPath($path)) {
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "url_alias WHERE `query` = 'product_id=" . $product_id . "'");
if ($query->num_rows) $product_alias = $query->row['keyword'];
}
if ($product_alias) {
$seo_url = $seo_path . '/' . $product_alias;
} else {
$seo_url = '/index.php?route=product/product&path=' . $path . '&product_id=' . $product_id;
}
}
}
$this->cache->set('product.seo.' . $product_id . '.' . (int)$this->config->get('config_store_id'), $seo_url);
}
return $seo_url;
}
}
?>
