Opencart duplicate URL keywords

Question

How would I go about fixing the issue where two categories/products have the same URL in Opencart? Or if their is a module which already does this?

E.g: categories

Answer 1

if ($url[0] == 'category_id') {
    $categories[$i] = $this->model_catalog_category->getCategory($url[1]);

    if (!isset($this->request->get['path'])) {
        $this->request->get['path'] = $categories[$i]['category_id'];
    } else {
        foreach ($query->rows as $row) {
            $url = explode('=', $row['query']);
            $category_id = $url[1];

            $category = $this->model_catalog_category->getCategory($category_id);

            if ($category['parent_id'] == $categories[$i - 1]['category_id']) {
                $this->request->get['path'] .= '_' . $category['category_id'];
            }
        }
    }
}

this will not work if its a 3 level category. I hope someone will have a better solution.