Taxonomy link not showing in custom admin menu wordpress - php

Question

I found many solutions for this but my scenario is total different.
Now my issue is, i am working on a plugin and in plugin i make custom post type and custom taxonomy, firstly its slugs are different, now i want that post type slug and taxonomy slugs are same and i also achieve this successfully but there is a one problem that is my category link is not showing in admin menu because when i register taxonomy i set object_type as slug which is same in post type slug and taxonomy slug but when i change the object type as post type name category menu showing perfectly.
Here is my code
Post Type Code:
add_action('init', 'kbe_articles');
function kbe_articles() {
$labels = array(
'name' => __('Articles', 'kbe'),
'singular_name' => __('Articles', 'kbe'),
'all_items' => __('Articles', 'kbe'),
'add_new' => __('New Article', 'kbe'),
'add_new_item' => __('Add New Article', 'kbe'),
'edit_item' => __('Edit Article', 'kbe'),
'new_item' => __('New Article', 'kbe'),
'view_item' => __('View Articles', 'kbe'),
'search_items' => __('Search Articles', 'kbe'),
'not_found' => __('Nothing found', 'kbe'),
'not_found_in_trash' => __('Nothing found in Trash', 'kbe'),
'parent_item_colon' => ''
);
$kbe_rewrite = array(
'slug' => KBE_PLUGIN_SLUG,
'with_front' => false,
'pages' => true,
'feeds' => true,
);
$args = array(
'labels' => $labels,
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'query_var' => true,
'menu_icon' => WP_Articles.'images/icon-kbe.png',
'capability_type' => 'post',
'hierarchical' => false,
'menu_position' => 3,
'supports' => array('title','editor','thumbnail','comments'),
'rewrite' => $kbe_rewrite,
'can_export' => true,
'has_archive' => true,
'exclude_from_search' => true
);
register_post_type( 'kbe_articles' , $args );
flush_rewrite_rules();
}
Taxonomy Code:
add_action( 'init', 'kbe_taxonomies');
function kbe_taxonomies() {
// Add new taxonomy, make it hierarchical (like categories)
$labels = array(
'name' => __( 'Articles Category', 'kbe'),
'singular_name' => __( 'Articles Category', 'kbe' ),
'search_items' => __( 'Search Articles Category', 'kbe' ),
'all_items' => __( 'All Articles Categories', 'kbe' ),
'parent_item' => __( 'Parent Articles Category', 'kbe' ),
'parent_item_colon' => __( 'Parent Articles Category:', 'kbe' ),
'edit_item' => __( 'Edit Articles Category', 'kbe' ),
'update_item' => __( 'Update Articles Category', 'kbe' ),
'add_new_item' => __( 'Add New Articles Category', 'kbe' ),
'new_item_name' => __( 'New Articles Category Name', 'kbe' ),
);
register_taxonomy( 'kbe_taxonomy', array(KBE_PLUGIN_SLUG), array(
'hierarchical' => true,
"label" => 'Categories',
"singular_label" => "Articles Category",
'show_ui' => true,
'show_admin_column' => true,
'show_in_nav_menus' => true,
'show_tagcloud' => true,
'query_var' => true,
'rewrite' => array( 'slug' => KBE_PLUGIN_SLUG, 'with_front' => true ),
));
flush_rewrite_rules();
}
And this is the code so my post type slug and taxonomy slug are same:
function taxonomy_slug_rewrite($wp_rewrite) {
$rules = array();
$taxonomies = get_taxonomies(array('_builtin' => false), 'objects');
$post_types = get_post_types(array('public' => true, '_builtin' => false), 'names');
foreach ($post_types as $post_type) {
$post_type_data = get_post_type_object( $post_type );
$post_type_slug = $post_type_data->rewrite['slug'];
foreach ($taxonomies as $taxonomy) {
if ($taxonomy->object_type[0] == $post_type_slug) {
$categories = get_categories(array('type' => $post_type_slug, 'taxonomy' => $taxonomy->name, 'hide_empty' => 0));
/* #var $category type */
foreach ($categories as $category) {
$rules[$post_type_slug . '/' . $category->slug . '/?$'] = 'index.php?' . $category->taxonomy . '=' . $category->slug;
}
}
}
}
$wp_rewrite->rules = $rules + $wp_rewrite->rules;
}
add_filter( 'generate_rewrite_rules', 'taxonomy_slug_rewrite' );
And here is my menu code:
add_action('admin_menu', 'kbe_plugin_menu');
function kbe_plugin_menu() {
add_submenu_page('edit.php?post_type=kbe_articles', 'Order', 'Order', 'manage_options', 'kbe_order', 'wp_kbe_order');
add_submenu_page('edit.php?post_type=kbe_articles', 'Settings', 'Settings', 'manage_options', 'kbe_options', 'wp_kbe_options');
}
Now when i change register_taxonomy( 'kbe_taxonomy', array('kbe_articles'), My taxonomy link appears in admin custom menu but when i change register_taxonomy( 'kbe_taxonomy', array(KBE_PLUGIN_SLUG), taxonomy link disapears from menu.
So what can i do that my taxonomy link appear in menu. but not change slugs.

Answer 1

Ok here is answer.
I add one more sub menu on a condition
here is my code:
add_submenu_page('edit.php?post_type=foo_articles', 'Categories', 'Categories', 'manage_options', 'edit-tags.php?taxonomy=foo_taxonomy&post_type=foo_articles');