gistfile1.txt

<?php
/*
Plugin Name: Featured Leaders
Plugin URI: http://www.asdf.com
Description: Creates featured leaders.
Version: 1.0
Author: Justin
Author URI: https://www.asdf.com
License: GPLv2
*/

add_action('init', 'create_featured_leaders');
add_action('admin_init', 'featured_leader_admin');
add_action('save_post', 'add_featured_leader_fields', 10, 2);

function create_featured_leaders()
{
    register_post_type('featured_leaders', array(
    'labels' => array(
      'name' => 'Featured Leaders',
      'singular_name' => 'Featured Leader',
      'add_new' => 'Add New',
      'add_new_item' => 'Add New Featured Leader',
      'edit' => 'Edit',
      'edit_item' => 'Edit Featured Leader',
      'new_item' => 'New Featured Leader',
      'view' => 'View',
      'view_item' => 'Featured Leader',
      'search_items' => 'Search Featured Leaders',
      'not_found' => 'No Featured Leaders Found',
      'not_found_in_trash' => 'No Featured Leaders Found in Trash',
      'parent' => 'Parent Featured Leader'
    ),
    'public' => true,
    'menu_position' => 15,
    'supports' => array( 'title', 'editor', 'thumbnail' ),
    'taxonomies' => array( '' ),
    'has_archive' => true
  ));
}

function featured_leader_admin()
{
    add_meta_box('featured_leader_meta_box', 'CDB ID No.', 'display_featured_leader_meta_box', 'featured_leaders', 'normal', 'high');
}

function display_featured_leader_meta_box($featured_leader)
{
    $cdb_id_number = esc_html(get_post_meta($featured_leader->ID, 'cdb_id_number', true)); ?>
  <table>
    <tr>
      <td style="width: 100%">CDB ID No.</td>
      <td><input type="text" size="80" name="cdb_id_number" value="<?php echo $cdb_id_number; ?>" /></td>
    </tr>
  </table>
  <?php
}

function add_featured_leader_fields($featured_leader_id, $featured_leader)
{
    if ($featured_leader->post_type == 'featured_leaders') {
        if (isset($_POST['cdb_id_number'])) {
            update_post_meta($featured_leader_id, 'cdb_id_number', $_POST['cdb_id_number']);
        }
    }
}

function include_leader_template_function($template_path)
{
    if (get_post_type() == 'featured_leaders') {
        if (is_single()) {
            if ($theme_file = locate_template('single-featured-leader.php')) {
                $template_path = $theme_file;
            } else {
                $template_path = plugin_dir_path(__FILE__) . 'single-featured-leader.php';
            }
        }
    }
    return $template_path;
}

add_filter('template_include', 'include_leader_template_function', 1);
?>