app-api/app/Models/Wetalk/Article.php

<?php

namespace App\Models\Wetalk;

use Illuminate\Database\Eloquent\Model;
use DateTimeInterface;

class Article extends Model
{
    protected $connection = 'mysql_t';
    protected $table='article';
    protected $guarded=[];
    protected $appends=['all_audio'];

    protected function serializeDate(DateTimeInterface $date): string
    {
        return $date->format('Y-m-d H:i:s');
    }
    public function getAllAudioAttribute($key)
    {
        $domain='https://weiliao.woaidakele.cn/storage/';
        $audio=$this->attributes['audio'];
        if(!empty($audio)){
            return $domain.$audio;
        }else{
            return '';
        }
    }
}