clementt

There we go!

I created a filter that I hooked on the page_link function. The good thing is, this function is no only called when fetching the pages’ URLs but also when creating a new page. Therefore, when the page is added to the database, the modified permalink is too (something that I didn’t expect at all).

Anyway, there is probably still a few things to fix in this code. I will make some tests now.

function add_page_url()
{
    add_rewrite_rule(
            '^([^/]*)/([^/]*)/page/([^/]*)?',
            'index.php?category=$matches[1]&pagename=$matches[2]&paged=$matches[3]',
            'top'
    );
    add_rewrite_rule(
            '^([^/]*)/([^/]*)/?',
            'index.php?category=$matches[1]&pagename=$matches[2]',
            'top'
    );
}
add_action('init', 'add_page_url');

function add_cat_page_link($link, $id) {
    // get page
    $page = get_pages(array('include'=>$id));
    // get category slug
    $category = get_the_category($page[0]->ID);
    if (!empty($category)) {
        $slug = $category[0]->slug;
    } else {
        $slug = 'uncategorized';
    }
    // ret new URL
    return site_url().'/'.$slug.'/'.$page[0]->post_name;
}
add_filter('page_link', 'add_cat_page_link', 0, 2);

I managed to get the URL format working thanks to the function add_rewrite_rule such as:

function add_page_url()
{
    add_rewrite_rule(
            '^([^/]*)/([^/]*)/?',
            'index.php?category=$matches[1]&pagename=$matches[2]',
            'top'
    );
}

Although, I now don’t know how to define the pages’ permalinks so they follow this new URL format.