wanyue_app/app/model/TravelLine.php

<?php

namespace app\model;

use support\Model;

class TravelLine extends Model
{
    protected $table = 'travel_line';

    protected $primaryKey = 'line_id';

    protected $dateFormat = 'U';

    const CREATED_AT = 'line_add_time';

    const UPDATED_AT = 'line_update_time';
}