test/app/Http/Models/LinkTaskDetail.php

<?php

namespace App\Http\Models;

use Illuminate\Database\Eloquent\Relations\Pivot;

class LinkTaskDetail extends Pivot
{
    protected $table = 'link_tasks_detail';
    protected $primaryKey = 'id';
    protected $guarded = [];


    const STATUS_TITLE = [
        3 => '待审核',
        4 => '未通过',
        5 => '已通过'
    ];

    public function urls()
    {
        return $this->hasMany(LinkTaskUrl::class, 'link_tasks_detail_id', 'id');
    }

    public function link()
    {
        return $this->hasOne(Link::class, 'id', 'link_id');
    }

    public function linkTask()
    {
        return $this->hasOne(LinkTask::class, 'id', 'task_id');
    }
}