test/app/Http/Models/SiteProcess.php

<?php

namespace App\Http\Models;

use Illuminate\Database\Eloquent\Model;

class SiteProcess extends Model
{
    protected $table = 'sites_process';
    protected $primaryKey = 'id';
    protected $guarded = [];
    protected $casts = [
        'detail' => 'array',
        'file_list' => 'array',
        'evaluate' => 'array',
        'check_items' => 'array',
        'deploy' => 'array'
    ];


    public function process()
    {
        return $this->belongsTo(Process::class, 'process_id', 'id');
    }

    public function site()
    {
        return $this->belongsTo(Site::class, 'site_id', 'id');
    }
}