qztool/backend/app/Models/OauthRefreshToken.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class OauthRefreshToken extends Model
{
    protected $fillable = [
        'token_hash', 'oauth_access_token_id', 'oauth_client_id', 'user_id', 'expires_at', 'revoked_at', 'replaced_by_id',
    ];

    protected function casts(): array
    {
        return [
            'expires_at' => 'datetime',
            'revoked_at' => 'datetime',
        ];
    }

    public function accessToken(): BelongsTo
    {
        return $this->belongsTo(OauthAccessToken::class, 'oauth_access_token_id');
    }

    public function client(): BelongsTo
    {
        return $this->belongsTo(OauthClient::class, 'oauth_client_id');
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }
}