WordPress 功能强大之处其中之一就是支持自定义文章类型和分类，非常的好用。本文给大家简单说一下如何在我们的主题中添加自定义文章类型 register_post_type 和分类 register_taxonomy。首先，添加自定义文章类型：

1. /* Register Custom Post Type */

2. add_action( 'init', 'create_products_post_type' );

3. // add portfolio

4. function create_products_post_type() {

5. 	$labels = array(

6. 		'name'               => __('产品', 'WPGP'),

7. 		'singular_name'      => __('产品', 'WPGP'),

8. 		'add_new'            => __('添加', 'WPGP'),

9. 		'add_new_item'       => __('新增产品', 'WPGP'),

10. 		'edit_item'          => __('编辑产品', 'WPGP'),

11. 		'new-item'           => __('新增产品', 'WPGP'),

12. 		'view_item'          => __('查看产品', 'WPGP'),

13. 		'search_items'       => __('搜索产品', 'WPGP'),

14. 		'not_found'          => __('未找到产品', 'WPGP'),

15. 		'not_found_in_trash' => __('垃圾箱未找到产品', 'WPGP'),

16. 		'parent_item_colon'  => '',

17. 	);

19. 	$args = array(

20. 		'labels'             => $labels,

21. 		'show_ui'            => true,  // Whether to generate a default UI for managing this post type in the admin

22. 		'query_var'          => true,

23. 		'show_in_nav_menus'  => false,

24. 		'public'             => true,  // Controls how the type is visible to authors and readers

25. 		'capability_type'    => 'post',

26. 		'hierarchical'       => false,

27. 		'menu_icon'          => 'dashicons-format-gallery', // use a font icon, e.g. 'dashicons-chart-pie'

28. 		'has_archive'        => true,  // Enables post type archives

29. 		'rewrite'            => array( 'slug' => 'products' ),

30. 		'supports'           => array( 'title', 'editor',  'thumbnail', 'excerpt', 'comments', 'custom-fields', 'page-attributes' ),

31. 		'can_export'         => true,

32. 	);

34. 	register_post_type( 'products', $args );

35. }

接下来我们需要给自定义文章类型添加分类功能，来对自定义文章进行分类管理：

1. add_action( 'init', 'register_products_taxonomy');

3. // create two taxonomies, genres and writers for the post type "book"

4. function register_products_taxonomy() {

5. 	// Add new taxonomy, make it hierarchical (like categories)

6. 	$labels = array(

7. 		'name'              => __('产品分类', 'WPGP'),

8. 		'singular_name'     => __('产品分类', 'WPGP'),

9. 		'menu_name'         => __('产品分类', 'WPGP'),

10. 		'search_items'      => __('搜索', 'WPGP'),

11. 		'all_items'         => __('所有产品分类', 'WPGP'),

12. 		'parent_item'       => __( '该产品分类的上级分类' ),

13. 		'parent_item_colon' => __( '该产品分类的上级分类：' ),

14. 		'edit_item'         => __('编辑产品分类', 'WPGP'),

15. 		'update_item'       => __('更新产品分类', 'WPGP'),

16. 		'add_new_item'      => __('添加新的产品分类', 'WPGP'),

17. 		'new_item_name'     => __('新的产品分类', 'WPGP'),

18. 	);

20. 	$args = array(

21. 		'hierarchical'      => true,

22. 		'labels'            => $labels,

23. 		'show_ui'           => true,

24. 		'show_in_menu'      => true,

25. 		'show_in_nav_menus' => true,   

26. 		'query_var'         => true,

27. 		'has_archive'       => false,

28.                 'show_admin_column' => true,

29. 		'rewrite'           => array( 'slug' => 'product' ),

30. 	);

32. 	register_taxonomy( 'product', 'products', $args );

33. }

最后，添加一个控制 WordPress 后台自定义文章页文章排序的小功能：

1. // admin page products orderby

2. add_filter( 'parse_query', 'sort_products_by_date' );

3. function sort_products_by_date() {

4. 	global $pagenow;

6. 	if ( is_admin() && $pagenow =='edit.php' &&  !empty($_GET['post_type'] == 'products') && !isset($_GET['post_status']) && !isset($_GET['orderby']) ) {

7. 		wp_redirect( admin_url('edit.php?post_type=products&orderby=date&order=desc') );

8. 		exit;

9. 	}

10. }