mtb_store_frontend/app/Models/DistAppearancePublishList.php

<?php

namespace App\Models;

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

class DistAppearancePublishList extends Model
{
    use HasFactory;

    protected $table = 'dist_appearance_publish_list';

    // 如果主键字段不是 'id'，可以指定
    protected $primaryKey = 'id';


    // 反向关联：每个 AppearancePublish 属于一个 Distributor
    public function distributor()
    {
        return $this->belongsTo(DistAdminDistributor::class, 'dist_id', 'id');
    }

    // 新增：与 DistAppearance 的关联
    public function appearance()
    {
        return $this->belongsTo(DistAppearance::class, 'appearance_id', 'id');
    }

    /**
     * 根据 dist_id 和 appearance_id 查找唯一记录
     *
     * @param int $dist_id
     * @param int $appearance_id
     * @return self|null
     */
    public static function findByDistAndAppearance(int $dist_id, int $appearance_id)
    {
        return self::where('dist_id', $dist_id)
            ->where('appearance_id', $appearance_id)
            ->first(); // 返回唯一记录或 null
    }
}