wp_query->max_num_pages always returns 0 on custom post type

Hi there I am developing a theme where I have to load some posts with ajax, in my index page everything works properly, the problem is when I need to use it on custom post type, I pass the values for a jquery file using wp_localize_script, it pass the correct value when I have regular posts, but it always pass 0 when I have a custom post type. Can you help me? Many thanks.

Code to pass arguments to my jQuery script

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function core_ajax_init() {

    global $wp_query;

    // Add code to index pages.
    if( !is_admin() ) { //!is_singular()

        // Enqueue jQuery Script to Process Ajax
            get_template_directory_uri(). '/core/js/ajax-load-posts.js',

        // What page are we on? And what is the pages limit?
        $max = $wp_query->max_num_pages;
        $paged = ( get_query_var('paged') > 1 ) ? get_query_var('paged') : 1;
        //echo $max;

        // Add some parameters for the JS.
                'startPage' => $paged,
                'maxPages' => $max,
                'nextLink' => next_posts($max, false)

add_action('template_redirect', 'core_ajax_init');

The following is a template where I call to print the button to load more posts

global $wp_query;

$found_posts = $wp_query->found_posts;
$per_page = get_option('posts_per_page');
$post_count = $found_posts - $per_page;

if($found_posts > $per_page) :
<div class="row" id="load-more" data-order='999'>
    <div class="col-md-12">
        <div class="load-more-btn">
            <a id="load-more-btn" href="#">     
                <span id="detail-holder">
                    <div id="loader" data-perpage="<?php echo $per_page; ?>"></div>
                    <div class="load-more-text"><?php _e('Click here to load more', CORE_THEME_NAME);  ?></div>
    </div> <!-- /.col-md-12 -->
</div> <!-- /.row -->
<?php endif; ?>

And here I have a snippet where I make a custom query for a specific post type

global $wp_query;
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$wp_query = new WP_Query(array( 'post_type' => 'course', 'order' => 'DESC', 'orderby' => 'date', 'paged' => $paged ));
if($wp_query->have_posts()): ?>

The problem here is it seems no matter how many pages I have wp_query var here always return 0 to my function core_ajax_init(), if I have regular posts it returns the correct number of pages but for custom post type it always returns 0. Why? Thank you for your answers.

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1 comment

  1. Yuo can also do it this way, count published posts, get settings posts per page, then divide.

    $published_posts = wp_count_posts()->publish;
    $posts_per_page = get_option('posts_per_page');
    $page_number_max = ceil($published_posts / $posts_per_page);

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