single-promotion.php

<?php

namespace albemishpc\promotion;
/**
 * Custom post template for 'Promotion' post type.
 *
 * @package A. L. Bemish, P.C.
 * @since   1.0.0
 * @author  Robert A. Gadon
 * @license GPL-2.0+
 * @link    http://spiralwebdb.com
 */

add_action( 'genesis_before_entry_content', __NAMESPACE__ . '\add_post_subtitle' );
/**
 * Add custom text field after title and before entry-content.
 *
 * @since   1.0.0
 *
 * @return  void
 */
function add_post_subtitle()    {

	$allowed_html   = array(a, alt, br, em, h1, h2, h3, h4, h5, h6, href, p, rel, title );

	$subtitle   = the_field( 'post_subtitle_before_entry_content' );
	$subtitle   = wp_kses( $subtitle, $allowed_html );

	include( __DIR__ . '/templates/views/promotion-page.php' );

}

add_action( 'genesis_after_entry_content', __NAMESPACE__ . '\render_output_after_entry_content' );
/**
 * Add custom text field after entry-content.
 *
 * @since   1.0.0
 *
 * @return  void
 */
function render_output_after_entry_content()    {

	$allowed_html   = array(a, alt, br, em, h1, h2, h3, h4, h5, h6, href, p, rel, title );

	$subtitle   = the_field( 'output_after_entry_content' );
	$subtitle   = wp_kses( $subtitle, $allowed_html );

}

genesis();

Initial commit for single-promotion.php.