exchange-2.0/app/Models/TransactionDetail.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\HasOne;


class TransactionDetail extends AbstractModel
{
    protected $table = 'transaction_detail';

    public function transaction(): HasOne
    {
        return $this->hasOne(Transaction::class, 'transaction_id', 'id');
    }

}