baoshi-was/app/ProcessDailyParticipant.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class ProcessDailyParticipant extends Model
{
    protected $fillable=[
        'process_daily_id','user_id','started_at','ended_at','hour_price',
        'hour_count','unit_price','unit_count','dinner_duration','remark'
    ];
    protected $appends=[
        'user_name'
    ];

    public function processDaily(){
        return $this->belongsTo('App\ProcessDaily','process_daily_id','id');
    }
    public function user(){
        return $this->belongsTo('App\User','user_id','id');
    }


    public function getAttribute()
    {
        return $this['user']?$this['user']['name']:null;
    }
}