wanyue_app/app/model/Asset.php

<?php

namespace app\model;

use support\Model;

class Asset extends Model
{
    protected $table = 'asset';

    protected $primaryKey = 'asset_id';

    protected $keyType = 'string';

    protected $dateFormat = 'U';

    const CREATED_AT = 'asset_addtimes';

    const UPDATED_AT = null;
}