GenerateSafeUuidTrait

GenerateSafeUuidTrait.php

<?php

namespace App\Traits;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;

trait GenerateSafeUuidTrait
{
    public static function bootHasUuid()
    {
        static::creating(function ($model) {

            // INIT INFOS
            $uuid = null;
            $uuidExists = true;

            // GENERATE & CHECK IF UUID EXISTS
            while ($uuidExists) {
                $uuid = Str::uuid();
                $uuidExists = DB::table($model->table)->where('uuid', '=', $uuid)->exists();
            }

            // USE THE CHECKED UUID
            $model->uuid = $uuid;
        });
    }
}