WP-Waitlist for WordPress

Add one or more “lists” to any post. Registered users of your site can then join or leave the list. Lists can be used for any purpose (event RSVPs, running polls or surveys, etc.) and can be unobtrusively added to any post type. Optionally, lists can have a maximum number of users on it that you define, after which any user who joins the list is automatically added to an overflow “waitlist.”

This plugin also serves the needs of plugin developers who are looking for a simple way to manage sets of users on a per-post basis. A simple set of public functions are exposed to other installed plugins that developers can use to get information about the lists themselves, and the users listed on them.

Code examples After installing and activating this plugin, include it in your own plugin project as follows:

<?php /** * Plugin Name: My plugin project * Plugin URI: http://example.com/ * Description: Example plugin for playing with WP-Waitlist. * Author: Me, myself, and I * Version: 1.0 */

class My_Plugin { private $WP_Waitlist;

public function __construct () { add_action('init', array($this, 'registerDepdencies')); }

public function registerDepdencies () { global $WP_Waitlist; if (!$WP_Waitlist) { // WP-Waitlist is not available, issue an error. } else { $this->$WP_Waitlist = $WP_Waitlist; } }

}

$My_Plugin = new My_Plugin();

At that point, you can call WP-Waitlist’s functions in your own plugin as follows:

public function myPluginLearnsAboutWaitlists ($post_id) { // Get an array of all lists that the author of this post created. $lists = $this->WP_Waitlist->getListsForPost($post_id);