FAQs custom post type for WordPress

class-custom-post-type-faqs.php

<?php
/*
  Plugin Name: FAQs Custom Post Type
  Plugin URI: https://github.com/monkishtypist
  Description: This `mu-plugin` class creates a new custom post type for Frequently Asked Questions.
  Version: 1.0
  Author: Tim Spinks @monkishtypist
  Author URI: https://github.com/monkishtypist
*/

if ( ! class_exists( 'CPT_FrequentlyAskedQuestions' ) ) :

	class CPT_FrequentlyAskedQuestions {

		public function __construct() {

			add_action( 'init', array( $this, 'faq_tax_init') );
			add_action( 'init', array( $this, 'faq_post_type') );
		}

		/**
		 * Register custom taxonomy
		 */
		public function faq_tax_init() {

			$labels = array(
				'name'                       => _x( 'FAQ Categories', 'faq_categories_taxonomy' ),
				'singular_name'              => _x( 'FAQ Category', 'faq_categories_taxonomy' ),
				'search_items'               => __( 'Search FAQ Categories' ),
				'popular_items'              => __( 'Popular FAQ Categories' ),
				'all_items'                  => __( 'All FAQ Categories' ),
				'parent_item'                => __( 'Parent FAQ Category' ),
				'parent_item_colon'          => __( 'Parent FAQ Category:' ),
				'edit_item'                  => __( 'Edit FAQ Category' ),
				'view_item'                  => __( 'View FAQ Category' ),
				'update_item'                => __( 'Update FAQ Category' ),
				'add_new_item'               => __( 'Add New FAQ Category' ),
				'new_item_name'              => __( 'New Position' ),
				'separate_items_with_commas' => __( 'Separate FAQ categories with commas' ),
				'add_or_remove_items'        => __( 'Add or remove FAQ categories' ),
				'choose_from_most_used'      => __( 'Choose from the most used FAQ categories' ),
				'not_found'                  => __( 'No FAQ categories found' ),
				'no_terms'                   => __( 'No FAQ categories' ),
				'items_list_navigation'      => __( 'Items list navigation' ),
				'items_list'                 => __( 'Items list' ),
				'most_used'                  => __( 'Most Used' ),
				'back_to_terms'              => __( 'Back to FAQ categories' )
			);
			$rewrite = array(
				'slug'                       => 'faq_categories',
				'with_front'                 => false,
				'hierarchical'               => true
			);
			$args = array(
				'labels'                     => $labels,
				'description'                => __( '' ),
				'public'                     => true,
				'publicly_queryable'         => true,
				'hierarchical'               => true,
				'show_ui'                    => true,
				'show_in_menu'               => true,
				'show_in_nav_menus'          => true,
				'show_admin_column'          => true,
				'rewrite'                    => $rewrite
			);

			register_taxonomy( 'faq-categories', 'cpt-faqs', $args );
		}

		/**
		 * Register "FAQs" post type
		 */
		public function faq_post_type() {

			$labels = array(
				'name'                  => _x( 'FAQs', 'Post Type General Name' ),
				'singular_name'         => _x( 'FAQ', 'Post Type Singular Name' ),
				'menu_name'             => _x( 'FAQs', 'Post Type Singular Name' ),
				'name_admin_bar'        => _x( 'FAQs', 'Post Type Singular Name' ),
				'archives'              => __( 'FAQ Archives' ),
				'parent_item_colon'     => __( 'Parent Item:' ),
				'all_items'             => __( 'All FAQs' ),
				'add_new_item'          => __( 'Add New FAQ' ),
				'add_new'               => __( 'Add New' ),
				'new_item'              => __( 'New FAQ' ),
				'edit_item'             => __( 'Edit FAQ' ),
				'update_item'           => __( 'Update FAQ' ),
				'view_item'             => __( 'View FAQ' ),
				'search_items'          => __( 'Search FAQs' ),
				'not_found'             => __( 'Not found' ),
				'not_found_in_trash'    => __( 'Not found in Trash' ),
				'featured_image'        => __( 'Featured Image' ),
				'set_featured_image'    => __( 'Set featured image' ),
				'remove_featured_image' => __( 'Remove featured image' ),
				'use_featured_image'    => __( 'Use as featured image' ),
				'insert_into_item'      => __( 'Insert into item' ),
				'uploaded_to_this_item' => __( 'Uploaded to this item' ),
				'items_list'            => __( 'Items list' ),
				'items_list_navigation' => __( 'Items list navigation' ),
				'filter_items_list'     => __( 'Filter items list' )
			);
			$rewrite = array(
				'slug'                  => 'faqs',
				'with_front'            => false,
				'pages'                 => true,
				'feeds'                 => false
			);
			$args = array(
				'label'                 => __( 'FAQ' ),
				'description'           => __( '' ),
				'labels'                => $labels,
				'supports'              => array( 'title', 'editor' ),
				'taxonomies'            => array( 'faq-categories'),
				'hierarchical'          => false,
				'public'                => true,
				'show_ui'               => true,
				'show_in_menu'          => true,
				'menu_position'         => 10,
				'menu_icon'             => 'dashicons-editor-help',
				'show_in_admin_bar'     => true,
				'show_in_nav_menus'     => true,
				'can_export'            => true,
				'has_archive'           => true,
				'exclude_from_search'   => true,
				'publicly_queryable'    => true,
				'rewrite'               => $rewrite,
				'capability_type'       => 'page',
				'show_admin_column'     => true
			);
			register_post_type( 'cpt-faqs', $args );
		}

	}

	$CPT_FrequentlyAskedQuestions = new CPT_FrequentlyAskedQuestions();

endif;