<?php
declare(strict_types=1);

namespace app\model\school_approval;

use think\Model;

/**
 * 审批流配置模型
 * Class SchoolApprovalConfig
 * @package app\model\school_approval
 */
class SchoolApprovalConfig extends Model
{
    /**
     * 数据表主键
     * @var string
     */
    protected $pk = 'id';

    /**
     * 模型名称
     * @var string
     */
    protected $name = 'approval_config';

    /**
     * 自动写入时间戳
     * @var bool
     */
    protected $autoWriteTimestamp = true;

    /**
     * 创建时间字段
     * @var string
     */
    protected $createTime = 'created_at';

    /**
     * 更新时间字段
     * @var string
     */
    protected $updateTime = 'updated_at';

    /**
     * 关联审批流配置节点
     * @return \think\model\relation\HasMany
     */
    public function nodes()
    {
        return $this->hasMany(SchoolApprovalConfigNode::class, 'config_id', 'id')->order('sequence', 'asc');
    }
}