Custom Roles for DZS

custom-roles.php

<?php
/**
 * Plugin Name: DZS Roles
 * Description: Provides custom roles for the Detroit Zoo website.
 * Author: Joel Worsham
 * Author URI: http://realbigmarketing.com
 * Version: 1.0.1
 */

if ( ! defined( 'ABSPATH' ) ) {
	die;
}

// Define plugin constants
define( 'ROLES_VERSION', '1.0.1' );
define( 'ROLES_DIR', plugin_dir_path( __FILE__ ) );
define( 'ROLES_URL', plugins_url( '', __FILE__ ) );

/**
 * Class ROLES
 *
 * Initiates the plugin.
 *
 * @since   0.1.0
 *
 * @package ROLES
 */
class ROLES {

	private function __clone() {
	}

	private function __wakeup() {
	}

	/**
	 * Returns the *Singleton* instance of this class.
	 *
	 * @since     0.1.0
	 *
	 * @staticvar Singleton $instance The *Singleton* instances of this class.
	 *
	 * @return ROLES The *Singleton* instance.
	 */
	public static function getInstance() {

		static $instance = null;

		if ( null === $instance ) {
			$instance = new static();
		}

		return $instance;
	}

	/**
	 * Initializes the plugin.
	 *
	 * @since 0.1.0
	 */
	protected function __construct() {

		$this->add_base_actions();
		$this->require_necessities();
	}

	/**
	 * Requires necessary base files.
	 *
	 * @since 0.1.0
	 */
	public function require_necessities() {
	}

	/**
	 * Adds global, base functionality actions.
	 *
	 * @since 0.1.0
	 */
	private function add_base_actions() {

		add_action( 'init', array( $this, '_register_assets' ) );
		add_action( 'admin_enqueue_scripts', array( $this, '_enqueue_assets' ) );

		register_activation_hook( __FILE__, array( $this, '_activate_plugin' ) );
		register_deactivation_hook( __FILE__, array( $this, '_deactivate_plugin' ) );
	}

	/**
	 * Registers the plugin's assets.
	 *
	 * @since 0.1.0
	 */
	function _register_assets() {
	}

	function _enqueue_assets() {
	}

	function _activate_plugin() {

		global $wp_roles;

		if ( ! isset( $wp_roles ) ) {
			$wp_roles = new WP_Roles();
		}

		$admin = $wp_roles->get_role( 'administrator' );

		add_role( 'site_manager', 'Site Manager', array_diff_key( $admin->capabilities, array(
			'install_themes' => true,
			'install_plugins' => true,
			'delete_themes' => true,
			'delete_plugins' => true,
			'edit_plugins' => true,
			'edit_themes' => true,
			'edit_files' => true,
		) ) );

		add_role( 'marketing', 'Marketing', array(
			'delete_events' => true,
			'delete_published_events' => true,
			'edit_events' => true,
			'edit_published_events' => true,
			'edit_others_events' => true,
			'publish_events' => true,
			'read' => true,
			'upload_files' => true,
		) );

		add_role( 'communications_editor', 'Communications Editor', array(
			'edit_others_pages' => true,
			'edit_others_posts' => true,
			'edit_posts' => true,
			'edit_published_posts' => true,
			'read' => true,
			'upload_files' => true,
		) );

		add_role( 'communications_manager', 'Communications Manager', array(
			'delete_others_pages' => true,
			'delete_others_posts' => true,
			'delete_pages' => true,
			'delete_posts' => true,
			'delete_private_pages' => true,
			'delete_private_posts' => true,
			'delete_published_pages' => true,
			'delete_published_posts' => true,
			'edit_others_pages' => true,
			'edit_others_posts' => true,
			'edit_pages' => true,
			'edit_posts' => true,
			'edit_private_pages' => true,
			'edit_private_posts' => true,
			'edit_published_pages' => true,
			'edit_published_posts' => true,
			'manage_categories' => true,
			'moderate_comments' => true,
			'publish_pages' => true,
			'publish_posts' => true,
			'read' => true,
			'read_private_pages' => true,
			'read_private_posts' => true,
			'unfiltered_html' => true,
			'upload_files' => true,
		) );
	}

	function _deactivate_plugin() {

		remove_role( 'site_manager' );
		remove_role( 'marketing' );
		remove_role( 'communications_editor' );
		remove_role( 'communications_manager' );
	}
}

Roles::getInstance();