jucai/app/Admin/Exports/Jobfair/QiandaoExport.php

<?php


namespace App\Admin\Exports\Jobfair;


use App\Admin\Exports\RowExport;
use Illuminate\Support\Collection;

class QiandaoExport extends RowExport
{
    public $name = '';

    function __construct($name){
        $this->name = $name;
    }
    /**
     * 设置标题,返回标题数组
     * @return array
     */
    public function headings(): array
    {
        return [
            '参会企业',
            '预定展位',
            '签到时间'
        ];
    }
    /**
     * 处理行数据
     * @param Model $row
     * @return array
     */
    public function map($row): array
    {
        $result['companyname'] = $row['companyname'];
        $result['position_id'] = $row['position_id'];
        $result['signed_time'] = $row['signed_time'];
        return $result;
    }

    /**
     * 设置文件名
     * @return string
     */
    public function getFilename(): string
    {
        return $this->name.".xlsx";
    }

    /**
     * 格式化指定列.
     * 只有在需要的时候设置,例如在身份证不要显示科学计数时设定列格式:['A'=>NumberFormat::FORMAT_NUMBER]
     * @return array
     */
    public function columnFormats(): array
    {
        return [
        ];
    }
}