crmeb_shop/application/admin/model/system/SystemGroup.php

<?php
/**
 *
 * @author: xaboy<365615158@qq.com>
 * @day: 2017/11/13
 */

namespace app\admin\model\system;

use traits\ModelTrait;
use basic\ModelBasic;

/**
 * 数据组model
 * Class SystemGroup
 * @package app\admin\model\system
 */
class SystemGroup extends ModelBasic
{
    use ModelTrait;

    /**
     * 根据id获取当前记录中的fields值
     * @param $id
     * @return array
     */
    public static function getField($id){
        $fields = json_decode(self::where('id',$id)->value("fields"),true);
        return compact('fields');
    }
}