Add Filter Role in admin Orders Woo

Add Filter Role in admin Orders Woo

/**
 * Add role drop-down to orders screen
 */
function doublee_add_order_user_role_filter_selectbox() {

	global $typenow, $wp_query;
	if ($typenow == 'shop_order') {
		if (in_array($typenow, wc_get_order_types('order-meta-boxes'))) :
			$user_role	= '';

			// Get all user roles
			$user_roles = array();
			foreach(get_editable_roles() as $key => $values) {
				$user_roles[$key] = $values['name'];
			}

			// Set a selected user role
			if (!empty($_GET['_user_role'])) {
				$user_role = sanitize_text_field($_GET['_user_role']);
			}

			// Display drop down
			?><select name='_user_role'>
			<option value='all'><?php _e( 'All Customer Group', 'tzn' ); ?></option><?php
			foreach($user_roles as $key => $value) { ?>
				<option <?php selected($user_role, $key); ?> value='<?php echo $key; ?>'><?php echo $value; ?></option>
			<?php } ?>
			</select>

		<?php
		endif;
	}
}
add_action('restrict_manage_posts', 'doublee_add_order_user_role_filter_selectbox');
function doublee_filter_order_list_by_role($query) {

	// Exit if no user role was submitted with the filters
	if(!$query->is_main_query() || !isset( $_GET['_user_role'])) {
		return;
	}

	// Get all users with the submitted role
	$ids = get_users(array('role' => sanitize_text_field($_GET['_user_role']), 'fields' => 'ID'));
	$ids = array_map('absint', $ids);

	// var_dump($ids);
	// If retail, add guests
	if(sanitize_text_field($_GET['_user_role']) == 'customer') {
		$ids[] = 0;
	}

	// Update the query
	$query->set('meta_query', array(
		array(
			'key' => '_customer_user',
			'compare' => 'IN',
			'value' => $ids,
		)
	));

	// No users with that role, return nothing
	if(empty($ids)) {
		$query->set( 'posts_per_page', 0 );
	}
}
add_filter('pre_get_posts', 'doublee_filter_order_list_by_role');