Create a Level up! entry for students added to a cohort

example.php

<?php
/**
 * Snippet showing how to create a record for a student as they are added to
 * a cohort. Students will earn 0 points so to only creates their record.
 * 
 * These files below must be implemented as part of an existing plugin, or
 * a new one. Only the two files relevant to Level up! are displayed below.
 */


// local/pluginname/db/events.php
$observers = [
    [
        'eventname' => '\\core\\event\\cohort_member_added',
        'callback' => 'local_pluginname_observer::cohort_member_added',
    ],
];

// local/pluginname/classes/observer.php
class local_pluginname_observer {

    /**
     * Observes when a member is added to a cohort.
     *
     * @param \core\event\cohort_member_added $event The event.
     * @return void
     */
    public static function cohort_member_added(\core\event\cohort_member_added $event) {
        if (!class_exists('block_xp\di')) {
            return;
        }

        $userid = $event->relateduserid;
        $courseid = 0;  // The course ID does not matter when used site-wide.

        // Do not add points to users who cannot earn points.
        if (!has_capability('block/xp:earnxp', context_system::instance(), $userid)) {
            return;
        }

        // Increase the number of points by 0 forces the record to be created.
        $world = \block_xp\di::get('course_world_factory')->get_world($courseid);
        $world->get_store()->increase($userid, $points);
    }

}