SATE-EasyReceipt/app/Models/AppModel.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Concerns\HasUuids;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Str;

abstract class AppModel extends BaseModel
{
    use SoftDeletes, HasUuids;

    public function getHistory(): ?HistoryModel
    {
        $historyName = static::class . 'History';
        return new $historyName;
    }

    public function getChangeLogMessage($before, $after): ?string
    {
        return null;
    }

    public function setId(?string $uuid = null)
    {
        if ($this->id !== null) return;

        if ($uuid) {
            $this->id = $uuid;
        } else {
            $this->id = Str::uuid();
        }
    }
}