Clever URL's

Rayken’s example is the closest I can find to a plug and play code. The key difference is in his example the first url chunk is fixed. i.e. ‘spare-parts/’ whereas I’m hoping to make this flexible.

// the rules
function custom_p2p_rewrites() {
    global $wp_rewrite;

    // Define custom rewrite tokens
    $rewrite_tag = '%productName%';

    // Add the rewrite tokens
    $wp_rewrite->add_rewrite_tag( $rewrite_tag, '(.+?)', 'products=' );

    // Define the custom permalink structure
    $rewrite_keywords_structure = $wp_rewrite->root . "/spare-parts/$rewrite_tag/";

    // Generate the rewrite rules
    $new_rule = $wp_rewrite->generate_rewrite_rules( $rewrite_keywords_structure );

    // Add the new rewrite rule into the global rules array
    $wp_rewrite->rules = $new_rule + $wp_rewrite->rules;

    return $wp_rewrite->rules;
}

// add to query vars
function add_custom_p2p_rewrites( $public_query_vars ) {
    $public_query_vars[] = 'products';
    return $public_query_vars;
}

// flush
function flush_custom_rules() {
    global $wp_rewrite;
    $wp_rewrite->flush_rules();
}

add_action( 'init', 'flush_custom_rules' );
add_action( 'generate_rewrite_rules', 'custom_p2p_rewrites' );
add_filter( 'query_vars', 'add_custom_p2p_rewrites' );

Thanks thanks thanks for your help