pay_center_server/app/Models/MerchantModel.php

<?php

namespace App\Models;

class MerchantModel extends BaseModel
{
    protected $table = 'merchant';

    /**
     * UUID 键名
     * @var string
     */
    protected $uuidKeyName = 'uid';

    protected static function boot()
    {
        parent::boot();

        self::created(function ($model) {
            $uuid = hashEncodeId($model->id);
            $model->{$model->uuidKeyName} = $uuid;
            $model->save();
        });
    }

    public function merchantPaymentType()
    {
        return $this->hasMany(MerchantPaymentTypeModel::class, 'merchant_uid', 'uid');
    }
}