Trait for busting cache based on Eloquent events

CacheBuster.php

<?php

namespace App\Traits;

use Illuminate\Support\Facades\Cache;

trait CacheBuster
{
    public static function bootCacheBuster()
    {
        foreach (static::getCacheEvents() as $event) {
            static::$event(function ($model) {
                $keys = static::getCacheKeys($model);

                foreach ($keys as $key) {
                    Cache::forget($key);
                }
            });
        }
    }

    protected static function getCacheKeys($model)
    {
        $keys = static::cacheKeys();

        $cacheKeys = [];

        foreach ($keys as $key) {
            $elements = explode('.', $key);

            if (count($elements) > 1) {
                $id = $elements[1];

                if (! is_null($model->$id)) {
                    $elements[1] = str_replace($id, $model->$id, $elements[1]);
                }
            }

            $cacheKeys[] = implode('.', $elements);
        }

        return $cacheKeys;
    }

    protected static function getCacheEvents()
    {
        if (isset(static::$cacheEvents)) {
            return static::$cacheEvents;
        }

        return [
            'created',
            'updated',
            'deleted',
        ];
    }
}

I normally use cache decoration on top of my repositories bound into the dependency container.

See a rough example at https://gist.github.com/joshbrw/6ddf41715cc3833eb64efb94543468a1