vue-wp/plugins/cia-post-types/cia-post-types.php

<?php
/**
 * Craft in America Custom Types Plugin
 *
 * @since             1.0.0
 * @package           cia_post_types
 *
 * @wordpress-plugin
 * Plugin Name:       Craft in America - Content Types
 * Plugin URI:
 * Description:       Adds custom custom types, and p2p relationships
 * Version:           1.0.0
 * Author:            TOJ <john@yvvas.com>
 */

// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) { die; }

require_once 'includes/cmb2/init.php';

include('includes/custom-types.php');
include('includes/p2p-mappings.php');

/**
 * Class that holds all the necessary
 * functionality to build custom post types
 */
class PostType {
    /**
     * The custom post type slug
     * @var string
     */
    private $post_type;
    /**
     * The custom post type icon
     * @var string
     */
    private $icon;

    function __construct($post_type, $icon) {
        $this->post_type = $post_type;
        $this->icon = $icon;
    }

    /** Register custom post type call-back */
    public function register_post_type() {
        $args = array(
            'label'              => esc_html( $this->post_type, 'test-plugin' ),
            'public'             => true,
            'menu_position'      => 47,
            'menu_icon'          => $this->icon,
            'supports'           => array( 'title', 'editor', 'revisions', 'thumbnail' ),
            'has_archive'        => false,
            'show_in_rest'       => true,
            'publicly_queryable' => false,
        );
        register_post_type( $this->post_type, $args );
    }
}

/**
 * Plugin Logic
 * Where the magic actually happens
 */
$custom_types = get_all_custom_types();
foreach ($custom_types as $type):
    $icon = get_icon($type);
    add_action( 'init', [ new PostType($type, $icon), 'register_post_type' ] );

    // Register custom meta-boxes
    // register_custom_meta_box( 'hero_box' 'Custom Hero Section', 'hero', $type );
endforeach;

add_action( 'cmb2_admin_init', 'cmb2_sample_metaboxes' );

function sanitize_hero_urls( $value, $field_args, $field ) {
    $encoded = wp_json_encode( array( 'url' => $value ), true );
    return $encoded;
}

function cmb_hero_render_row_cb( $field_args, $field ) {
    $id          = $field->args( 'id' );
    $label       = $field->args( 'name' );
    $name        = $field->args( '_name' );
    $value       = $field->escaped_value();
    $description = $field->args( 'description' );
    // !: Impossible to fine &quot; conversion
    $decoded     = json_decode( str_replace('&quot;', '"', $value), true );
    ?>
    <div class="custom-field-row">
        <p>
            <label for="<?php echo $id; ?>"><?php echo $label; ?></label>
            <input style="width: 100%;" id="<?php echo $id; ?>" type="text" name="<?php echo $name; ?>" 
                value="<?php echo $decoded['url']; ?>"/>
        </p>
        <p class="description"><?php echo $description; ?></p>
    </div>
    <?php
}

/**
 * Define the metabox and field configurations.
 */
function cmb2_sample_metaboxes() {

    /**
     * Initiate the metabox
     */
    $cmb = new_cmb2_box( array(
        'id'            => 'hero_metabox',
        'title'         => __( 'Hero', 'cmb2' ),
        'object_types'  => array( 'artist', ), // Post type
        'context'       => 'normal',
        'priority'      => 'high',
        'show_names'    => true, // Show field names on the left
        'show_in_rest'  => WP_REST_Server::READABLE
        // 'cmb_styles' => false, // false to disable the CMB stylesheet
        // 'closed'     => true, // Keep the metabox closed by default
    ) );

    // URL text field
    $cmb->add_field( array(
        'name'             => __( 'YouTube URL', 'cmb2' ),
        'desc'             => __( 'Video for the hero section to display', 'cmb2' ),
        'id'               => 'hero_header',
        'type'             => 'text',
        'sanitization_cb'  => 'sanitize_hero_urls',
        'render_row_cb' => 'cmb_hero_render_row_cb'
    ) );
}