Support » Fixing WordPress » Custom post type permalink broken : 3 match for a single custom post.

  • Resolved Looic


    Hi All,
    I submit you a problem that drives me mad… I created a custom post type called “product” with custom permalinks using this very good tutorial : Everything was working well since… I flushed all the rewrite rules ! #BigFail

    Here is my code, and I will comment what I’ve done. I hope you will find what is wrong.

    1) Registering of custom post type called “product”:

    add_action('init', 'my_products_init');
    function my_products_init() {
            $args = array(
                    'label' => __('My Product DB'),
                    'singular_label' => __('My Product DB'),
                    'public' => true,
                    'show_ui' => true,
                    '_builtin' => false,
                    '_edit_link' => 'post.php?post=%d',
                    'capability_type' => 'post',
                    'hierarchical' => false,
                    'publicly_queryable' => true,
                    'query_var' => true,
                    'rewrite' => false,
                    'supports' => array('title', 'editor', 'thumbnail', 'comments')
            register_post_type( 'product' , $args );

    I created a lot of custom posts “products” so no problem at this stage.

    2/ I registered a custom permalink structure for “product” post types, which is composed of 2 %tags% :

    add_action('init', 'my_rewrite_init');
    function my_rewrite_init()
            global $wp_rewrite;
            $wp_rewrite->add_rewrite_tag("%product%", '([^/]+)', "product=");
            $wp_rewrite->add_rewrite_tag("%producttitle%", '([^/]+)', 'producttitle=');
            $products_structure = '/Product-DB/%producttitle%/%product%/The-Product';
            $wp_rewrite->add_permastruct('product', $products_structure, false);

    At this stage, the link of each post is well replaced my the permalink structure “products_structure”. So no problem at this stage too.

    3/ Substitution rules of %producttitle% tag with “_producttitle” custom field.

    add_filter('post_type_link', 'producttitle_permalink', 10, 3);
    function producttitle_permalink($permalink, $post, $leavename)
            $no_data = 'no-title';
            $post_id = $post->ID;
            if($post->post_type != 'product' || empty($permalink) || in_array($post->post_status, array('draft', 'pending', 'auto-draft')))
                    return $permalink;
            $var1 = get_post_meta($post_id, '_producttitle', true);
            $var1 = sanitize_title($var1);
            if(!$var1) { $var1 = $no_data; }
                    $permalink = str_replace('%producttitle%', $var1, $permalink);
            return $permalink;

    Again, each %tag% is replaced.

    A sample target link of my custom products post is BUT when I load this link I got a 404 error. I don’t understand why because, again, EVERYTHING was working well since 1 week, till I decided to “flush rewrite rules”.

    I installed Rewrite Rules Inspector and this plugin says 3 rules match my custom products URLs :

    Product-DB/[^/]+/[^/]+/([^/]+)/?$	index.php?attachment=$matches[1]	missing
    Product-DB/([^/]+)/([^/]+)/The-Product(/[0-9]+)?/?$	index.php?producttitle=$matches[1]&product=$matches[2]&page=$matches[3]	missing
    (.?.+?)(/[0-9]+)?/?$	index.php?pagename=$matches[1]&page=$matches[2]	page

    I don’t know why the “page” post type is matched… perhaps this is the source of my problem. And if so, I don’t understand why it doesn’t work anymore as it worked yesterday.

    Any idea ?

    Best regards,

Viewing 2 replies - 1 through 2 (of 2 total)
  • Thread Starter Looic


    Finally I restarted the code from scratch and it works very well now. don’t understand what happened…


    This is so lame. I’m in the exact same spot. My first CPT works fine. My other two WILL NOT resolve and 404 ON PAGE! edit.php shows the desired URL but something is very wrong.

    This should be like 5 minutes of work and I’m on day 2 with nothing to show.

    Why aren’t my CPT’s rewriting their URL’s and or storing these rewrite rules correctly to the database?

Viewing 2 replies - 1 through 2 (of 2 total)
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