Cacheable settings model

Setting.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Cache;

class Setting extends Model
{
    protected static function boot()
    {
        static::saved(function () {
            Cache::forget('settings.year');
        });
    }

    public static function getYear()
    {
        return Cache::rememberForever('settings.year', function () {
            return static::where('key', 'year')->first()->value;
        });
    }
}