guochanhua/zskk_new_manage/application/admin/model/exams/ExamsModel.php

<?php

namespace app\admin\model\exams;

use think\Model;


class ExamsModel extends Model
{

    // 表名
    protected $table = 'exams';

    // 设置当前模型的数据库连接
    protected $connection = [
        // 数据库表前缀
        'prefix'      => '',
    ];

    // 追加属性
    protected $append = [
        'exam_datetime_text'
    ];
    


    public function getExamDatetimeTextAttr($value, $data)
    {
        $value = $value ? $value : (isset($data['exam_datetime']) ? $data['exam_datetime'] : '');
        return is_numeric($value) ? date("Y-m-d H:i:s", $value) : $value;
    }

    protected function setExamDatetimeAttr($value)
    {
        return $value === '' ? null : ($value && !is_numeric($value) ? strtotime($value) : $value);
    }


}