Custom post type archive page template

Question

I am trying to implement an archive for a custom post type:

http://mywebsite:8888/about-us/client-news/2015/03/

The problem is that it keeps serving me a 404 page and I cannot work out what page template its failing to find. I have tried turning on debug and a number of other steps

The registration:

function client_news() {

    $labels = array(
        'name' => _x("Client News", "post type general name"),
        'singular_name' => _x("Client News Item", "post type singular name"),
        'menu_name' => 'Client News',
        'add_new' => _x("Add New", "news item"),
        'add_new_item' => __("Add New News Item"),
        'edit_item' => __("Edit News Item"),
        'new_item' => __("New News Item"),
        'view_item' => __("View News Item"),
        'search_items' => __("Search Client News"),
        'not_found' =>  __("No Useful Items Found"),
        'not_found_in_trash' => __("No Useful Items Found in Trash"),
        'parent_item_colon' => ''
    );
    // Register post type
    register_post_type('clientnews' , array(
        'labels' => $labels,
        'public' => true,
        'has_archive' => true,
        'rewrite' => array( 'slug' => 'news' ),
        'supports' => array('title', 'editor', 'thumbnail')
    ) );
}

add_action( 'init', 'client_news', 0 );

Archive loop is as follows:

<ul class="news_archive">
    <?php
        add_filter( 'get_archives_link', 'get_archives_clientnews_link', 10, 2 );
        wp_get_archives( array( 'post_type' => 'clientnews', 'type' => 'monthly' ) );
        remove_filter( 'get_archives_link', 'get_archives_clientnews_link', 10, 2 );
    ?>
</ul>

Answer 1

I have managed to resolve this by adding in a custom rewrite into the functions file:

// Add custom rewrite rules to handle things like years in custom post archives
function add_rewrite_rules($aRules) {
    $aNewRules = array(
        'news/([0-9]{4})/([0-9]{2})/page/?([0-9]{1,})/?$' => 'index.php?post_type=clientnews&year=$matches[1]&monthnum=$matches[2]&paged=$matches[3]',
        'news/([0-9]{4})/([0-9]{2})/?$' => 'index.php?post_type=clientnews&year=$matches[1]&monthnum=$matches[2]',
        'about-us/other-news/([0-9]{4})/([0-9]{2})/page/?([0-9]{1,})/?$' => 'index.php?post_type=othernews&year=$matches[1]&monthnum=$matches[2]&paged=$matches[3]',
        'about-us/other-news/([0-9]{4})/([0-9]{2})/?$' => 'index.php?post_type=othernews&year=$matches[1]&monthnum=$matches[2]'
    );
    $aRules = $aNewRules + $aRules;
    return $aRules;
}

// hook add_rewrite_rules function into rewrite_rules_array
add_filter('rewrite_rules_array', 'add_rewrite_rules');

Then in the archive page I changed the query to:

$aParts = explode( '/', $_SERVER['REQUEST_URI'] );

$iYear  = get_query_var('year');
$iMonth = get_query_var('monthnum');

if( $iMonth <= 0 && $iYear > 0 )
{
    $iMonth = $aParts[ 4 ];
}

$news = new WP_Query('showposts=6&post_type=othernews&paged='. $paged . '&year=' . $iYear . '&monthnum=' . $iMonth );

Answer 2

Try visiting :

http://mywebsite:8888/about-us/news/2015/03/

You are using slug => 'news' so 'client-news' will give you an error