public static function observe_course_module_completion_updated(\core\event\course_module_completion_updated $event) {
        if (!static::is_enabled()) {
            return;
        }

        $eventdata = $event->get_record_snapshot('course_modules_completion', $event->objectid);

        if ($eventdata->completionstate == COMPLETION_COMPLETE
                || $eventdata->completionstate == COMPLETION_COMPLETE_PASS) {
            $coursemodulecompetencies = course_module_competency::list_course_module_competencies($eventdata->coursemoduleid);

            $cm = get_coursemodule_from_id(null, $eventdata->coursemoduleid);
            $fastmodinfo = get_fast_modinfo($cm->course)->cms[$cm->id];

            $cmname = $fastmodinfo->name;
            $url = $fastmodinfo->url;

            foreach ($coursemodulecompetencies as $coursemodulecompetency) {
                $outcome = $coursemodulecompetency->get('ruleoutcome');
                $action = null;
                $recommend = false;
                $strdesc = 'evidence_coursemodulecompleted';

                if ($outcome == course_module_competency::OUTCOME_EVIDENCE) {
                    $action = evidence::ACTION_LOG;

                } else if ($outcome == course_module_competency::OUTCOME_RECOMMEND) {
                    $action = evidence::ACTION_LOG;
                    $recommend = true;

                } else if ($outcome == course_module_competency::OUTCOME_COMPLETE) {
                    $action = evidence::ACTION_COMPLETE;

                } else {
                    throw new moodle_exception('Unexpected rule outcome: ' + $outcome);
                }

                static::add_evidence(
                    $event->relateduserid,
                    $coursemodulecompetency->get('competencyid'),
                    $event->contextid,
                    $action,
                    $strdesc,
                    'core_competency',
                    $cmname,
                    $recommend,
                    $url
                );
            }
        }
    }