Create Taxonomy For a WordPress User

As we all know, “taxonomy” is a prominent feature provided by WordPress that we can allocate to a default post or custom post type. This feature is not available for the users. If you want to Create Taxonomy For a WordPress User, then this article is for you.

Prerequisites for this functionality
1) WordPress installed.
2) A theme where you can write the code in functions.php.
3) ACF plugin installed and activated.

If you have all the above, then let’s get started:

Step 1 – Register a Taxonomy

The first step is to register a taxonomy with any name. In our example, we will create a taxonomy with the name “user_category”. Add the following code to your active theme’s functions.php file.

define( 'USER_CATEGORY_NAME', 'user_category' );
add_action( 'init', 'dcs_register_user_category_taxonomy' );
function dcs_register_user_category_taxonomy() {
 register_taxonomy(
  USER_CATEGORY_NAME, 
  'user', 
  array( 
   'public' => true,
   'labels' => array(
    'name'  => 'User Categories',
    'singular_name' => 'User Category',
    'menu_name' => 'User Categories',
    'search_items' => 'Search User Category',
    'popular_items' => 'Popular User Categories',
    'all_items' => 'All User Categories',
    'edit_item' => 'Edit User Category',
    'update_item' => 'Update User Category',
    'add_new_item' => 'Add New User Category',
    'new_item_name' => 'New User Category Name',
   ),
   'update_count_callback' => function() {
    return; 
   }
  )
 );
}

define( 'USER_CATEGORY_NAME', 'user_category' );

add_action( 'init', 'dcs_register_user_category_taxonomy' );

function dcs_register_user_category_taxonomy() {

register_taxonomy(

USER_CATEGORY_NAME,

'user',

array(

'public' => true,

'labels' => array(

'name' => 'User Categories',

'singular_name' => 'User Category',

'menu_name' => 'User Categories',

'search_items' => 'Search User Category',

'popular_items' => 'Popular User Categories',

'all_items' => 'All User Categories',

'edit_item' => 'Edit User Category',

'update_item' => 'Update User Category',

'add_new_item' => 'Add New User Category',

'new_item_name' => 'New User Category Name',

'update_count_callback' => function() {

return;

}

)

);

}

Step 2 – Add admin menu

Now we have to add an admin menu item under the user page using “add_users_page” hook. Add the following code to your active theme’s functions.php file.

add_action( 'admin_menu', 'dcs_add_user_categories_admin_page' );
function dcs_add_user_categories_admin_page() {
 $taxonomy = get_taxonomy( USER_CATEGORY_NAME );
 add_users_page(
  esc_attr( $taxonomy->labels->menu_name ),
  esc_attr( $taxonomy->labels->menu_name ),
  $taxonomy->cap->manage_terms,
  'edit-tags.php?taxonomy=' . $taxonomy->name
 );
}

add_action( 'admin_menu', 'dcs_add_user_categories_admin_page' );

function dcs_add_user_categories_admin_page() {

$taxonomy = get_taxonomy( USER_CATEGORY_NAME );

add_users_page(

esc_attr( $taxonomy->labels->menu_name ),

$taxonomy->cap->manage_terms,

'edit-tags.php?taxonomy=' . $taxonomy->name

);

}

Up to here, your taxonomy is ready for WordPress users, but the problem is that when we will add a term, then this will activate the post menu from the left.

To fix this issue, add the following code to your active theme’s functions.php file.

add_filter( 'submenu_file', 'dcs_set_user_category_submenu_active' );
function dcs_set_user_category_submenu_active( $submenu_file ) {
 global $parent_file;
 if( 'edit-tags.php?taxonomy=' . USER_CATEGORY_NAME == $submenu_file ) {
  $parent_file = 'users.php';
 }
 return $submenu_file;
}

add_filter( 'submenu_file', 'dcs_set_user_category_submenu_active' );

function dcs_set_user_category_submenu_active( $submenu_file ) {

global $parent_file;

if( 'edit-tags.php?taxonomy=' . USER_CATEGORY_NAME == $submenu_file ) {

$parent_file = 'users.php';

}

return $submenu_file;

}