19. Створення власної таксономії до custom post type #wordpress

function.php

function wpdocs_codex_book_init() {
    $labels = array(
        'name'                  => esc_html_x( 'Books', 'Post type general name', 'textdomain' ),
        'singular_name'         => esc_html_x( 'Book', 'Post type singular name', 'textdomain' ),
        'menu_name'             => esc_html_x( 'Books', 'Admin Menu text', 'textdomain' ),
        'name_admin_bar'        => esc_html_x( 'Book', 'Add New on Toolbar', 'textdomain' ),
        'add_new'               => esc_html__( 'Add New', 'textdomain' ),
        'add_new_item'          => esc_html__( 'Add New Book', 'textdomain' ),
        'new_item'              => esc_html__( 'New Book', 'textdomain' ),
        'edit_item'             => esc_html__( 'Edit Book', 'textdomain' ),
        'view_item'             => esc_html__( 'View Book', 'textdomain' ),
        'all_items'             => esc_html__( 'All Books', 'textdomain' ),
        'search_items'          => esc_html__( 'Search Books', 'textdomain' ),
        'parent_item_colon'     => esc_html__( 'Parent Books:', 'textdomain' ),
        'not_found'             => esc_html__( 'No books found.', 'textdomain' ),
        'not_found_in_trash'    => esc_html__( 'No books found in Trash.', 'textdomain' ),
        'featured_image'        => esc_html_x( 'Book Cover Image', 'Overrides the “Featured Image” phrase for this post type. Added in 4.3', 'textdomain' ),
        'set_featured_image'    => esc_html_x( 'Set cover image', 'Overrides the “Set featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
        'remove_featured_image' => esc_html_x( 'Remove cover image', 'Overrides the “Remove featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
        'use_featured_image'    => esc_html_x( 'Use as cover image', 'Overrides the “Use as featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
        'archives'              => esc_html_x( 'Book archives', 'The post type archive label used in nav menus. Default “Post Archives”. Added in 4.4', 'textdomain' ),
        'insert_into_item'      => esc_html_x( 'Insert into book', 'Overrides the “Insert into post”/”Insert into page” phrase (used when inserting media into a post). Added in 4.4', 'textdomain' ),
        'uploaded_to_this_item' => esc_html_x( 'Uploaded to this book', 'Overrides the “Uploaded to this post”/”Uploaded to this page” phrase (used when viewing media attached to a post). Added in 4.4', 'textdomain' ),
        'filter_items_list'     => esc_html_x( 'Filter books list', 'Screen reader text for the filter links heading on the post type listing screen. Default “Filter posts list”/”Filter pages list”. Added in 4.4', 'textdomain' ),
        'items_list_navigation' => esc_html_x( 'Books list navigation', 'Screen reader text for the pagination heading on the post type listing screen. Default “Posts list navigation”/”Pages list navigation”. Added in 4.4', 'textdomain' ),
        'items_list'            => esc_html_x( 'Books list', 'Screen reader text for the items list heading on the post type listing screen. Default “Posts list”/”Pages list”. Added in 4.4', 'textdomain' ),
    );
 
    $args = array(
        'labels'             => $labels,
        'public'             => true,
        'publicly_queryable' => true,
        'show_ui'            => true,
        'show_in_menu'       => true,
        'query_var'          => true,
        'rewrite'            => array( 'slug' => 'book' ),
        'capability_type'    => 'post',
        'has_archive'        => false, // for test
        'hierarchical'       => false,
        'menu_position'      => null,
        'supports'           => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' ),
    );
 
    register_post_type( 'book', $args );
    // потрібно створити файл taxonomy.php taxonomy-brand.php 
  
  if( !taxonomy_axists('brand') ) {
// зарегіструвати таксономію для кастомного типу запису book та other-post-type-name
    register_taxonomy( 'brand', array('book', 'other-post-type-name' ), $aee );
  }
    $aee = array(
    'hierarchical'       => false,
    'show_ui'=> true,
    'query_var' => true,
    'rewrite' => array( 'slug' => 'brands' ),
    'show_admin_column' => true,
    'show_in_rest' => true,
    'labels' => array(
        'name'              => esc_html_x( 'Brands', 'taxonomy general name', 'textdomain' ),
        'singular_name'     => esc_html_x( 'Brand', 'taxonomy singular name', 'textdomain' ),
        'search_items'      => esc_html__( 'Search Brands', 'textdomain' ),
        'all_items'         => esc_html__( 'All Brands', 'textdomain' ),
        'parent_item'       => esc_html__( 'Parent Brand', 'textdomain' ),
        'parent_item_colon' => esc_html__( 'Parent Brand:', 'textdomain' ),
        'edit_item'         => esc_html__( 'Edit Brand', 'textdomain' ),
        'update_item'       => esc_html__( 'Update Brand', 'textdomain' ),
        'add_new_item'      => esc_html__( 'Add New Brand', 'textdomain' ),
        'new_item_name'     => esc_html__( 'New Brands Name', 'textdomain' ),
        'menu_name'         => esc_html__( 'Brands', 'textdomain' ),
    )
  )
}
 
add_action( 'init', 'wpdocs_codex_book_init' );

taxonomy-brand.php

<?php
  get_header()
  
  $term = get_term_by( 'slug', get_query_var('term'), get_query_var('taxonomy') );
  echo $term ->name;
?>
  <div>
  <?php if( have_posts() ) : while( have_posts() ) : the_post(); ?>  
   <?php get_template_part('tamplate-part/content', 'car'); ?>
  <?php endwhile; else :  ?>
   <?php get_template_part('tamplate-part/content', 'none'); ?> // постів не знайдено 
  <?php endif;  ?>
  </div>
 
<?php get_footer();