gistfile1.txt

<?php

namespace App;

use ReflectionClass;

trait RecordsActivity
{
    public static $_recordableEvents;

    public static function boot()
    {
        parent::boot();

        self::$_recordableEvents = [
            'created', 'updated', 'deleted'
        ];

        foreach (self::getRecordableEvents() as $event) {
            static::{$event}(function ($model) {
                Activity::create([
                    'subject_id' => $model->id,
                    'subject_type' => get_class($model),
                    'name' => self::getActivityName($model, 'created'),
                    'user_id' => $model->user_id,
                ]);
            });
        }
    }

    public static function getRecordableEvents()
    {
        $observableEvents = (new static)->getObservableEvents();

        if (isset(static::$recordableEvents)) {
            return static::$recordableEvents;
        }

        return array_intersect(static::$_recordableEvents, $observableEvents);
    }

    public static function getActivityName($model, $action)
    {
        $name = strtolower((new ReflectionClass($model))->getShortName());

        return "{$action}_{$name}";
    }
}