因為我們是使用 ACF，所以要透過 add_filter 來攔截註冊 post type 的設定
add_filter('register_post_type_args', function($args, $post_type) {
// Target your specific post type registered by ACF
if ($post_type === 'seo-single-post') {
$args['rewrite'] = array('slug' => '', 'with_front' => false); // Remove slug prefix
}
return $args;
}, 10, 2);
add_action('init', function() {
add_rewrite_rule(
'^([^/]+)?$',
'index.php?seo-single-post=$matches[1]',
'top'
);
});
add_action('template_redirect', function() {
// Get the current post type
global $wp_query;
if (is_singular('seo-single-post')) {
$current_url = $_SERVER['REQUEST_URI'];
// Check if the URL contains the slug
if (strpos($current_url, '/seo-single-post/') !== false) {
// Redirect to the URL without the slug (301 Permanent Redirect)
wp_redirect(home_url(str_replace('/seo-single-post/', '/', $current_url)), 301);
exit;
}
}
});
add_filter('post_type_link', function($post_link, $post, $leavename) {
// Check if it's your custom post type
if ($post->post_type === 'seo-single-post') {
// Generate the permalink without the slug
$post_link = home_url($leavename ? '/%postname%/' : '/' . $post->post_name . '/');
}
return $post_link;
}, 10, 3);
add_action('pre_get_posts', function($query) {
// Check if it's the main query and not in admin
if (!is_admin() && $query->is_main_query() && isset($query->query_vars['seo-single-post'])) {
$slug = $query->query_vars['seo-single-post'];
// Try to find a post in the custom post type with the slug
$post = get_posts(array(
'name' => $slug,
'post_type' => 'seo-single-post',
'post_status' => 'publish',
'numberposts' => 1,
));
// If no post is found, treat it as a page
if (empty($post)) {
$query->set('post_type', 'page');
$query->set('name', $slug); // Ensure the query uses the slug for the page
unset($query->query_vars['seo-single-post']); // Remove the custom post type query var
}
}
});
