<?php
declare(strict_types=1);

namespace app\model\school_approval;

use core\base\BaseModel;

/**
 * 审批历史模型
 * Class SchoolApprovalHistory
 * @package app\model\school_approval
 */
class SchoolApprovalHistory extends BaseModel
{
    /**
     * 数据表主键
     * @var string
     */
    protected $pk = 'id';

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

    // 审批动作常量
    const ACTION_APPROVE = 'approve';
    const ACTION_REJECT = 'reject';
    const ACTION_FORWARD = 'forward';
    const ACTION_CANCEL = 'cancel';

    // 审批状态常量
    const STATUS_APPROVED = 'approved';
    const STATUS_REJECTED = 'rejected';
    const STATUS_FORWARDED = 'forwarded';
    const STATUS_CANCELLED = 'cancelled';

    /**
     * 关联审批流程
     * @return \think\model\relation\BelongsTo
     */
    public function approvalProcess()
    {
        return $this->belongsTo(SchoolApprovalProcess::class, 'process_id', 'id');
    }

    /**
     * 关联参与人（人员表）
     * @return \think\model\relation\BelongsTo
     */
    public function participant()
    {
        return $this->belongsTo('app\model\personnel\Personnel', 'participant_id', 'id');
    }
}