jiqu-library-server/app/Models/ProductGift.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class ProductGift extends Model
{
    use HasFactory;

    /**
     * @var array
     */
    protected $fillable = [
        'sku_id',
        'gift_sku_id',
        'num',
        'sent',
    ];
}