We will start with the Forum class, as it is the most simple one of the two custom post types. So, create a file called class-wpwaf-model-forum.php inside the classes folder and define a blank class called WPWAF_Model_Forum, as shown in the following code:
<?php class WPWAF_Model_Forum { public $post_type; public function __construct() { } } ?>
Here, we have an instance variable for keeping the custom post type name. This class constructor is responsible for handling all the forum-related function initializations and definitions. The first task is to register a custom post type for a forum. Let's modify the constructor to add the necessary actions for the post type creation:
class WPWAF_Model_Forum ...
