test_app/app/Models/OrderGift.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class OrderGift extends Model
{
//    use SoftDeletes;
    protected $table='order_gift';

    protected $fillable = ['gift_id','order_id','activity_id','num'];
}