<?php

namespace App\Module\Promotion\Models;

use Illuminate\Database\Eloquent\Relations\BelongsTo;
use UCore\ModelCore;

/**
 * 推荐关系修改记录
 *
 * field start 
 * field end
 */
class PromotionReferralChange extends ModelCore
{
    /**
     * 与模型关联的表名
     *
     * @var string
     */
    protected $table = 'promotion_referral_changes';


    /**
     * 指示模型是否应该被打上时间戳
     *
     * @var bool
     */
    public $timestamps = false;

    // attrlist start 
    protected $fillable = [
    ];
    // attrlist end

    /**
     * 应该被转换为日期的属性
     *
     * @var array
     */
    protected $dates = [
        'change_time',
        'created_at',
    ];

    /**
     * 获取用户信息
     *
     * @return BelongsTo
     */
    public function user()
    {
        return $this->belongsTo('App\Models\User', 'user_id');
    }

    /**
     * 获取旧推荐人信息
     *
     * @return BelongsTo
     */
    public function oldReferrer()
    {
        return $this->belongsTo('App\Models\User', 'old_referrer_id');
    }

    /**
     * 获取新推荐人信息
     *
     * @return BelongsTo
     */
    public function newReferrer()
    {
        return $this->belongsTo('App\Models\User', 'new_referrer_id');
    }

    /**
     * 获取操作人信息
     *
     * @return BelongsTo
     */
    public function operator()
    {
        return $this->belongsTo('App\Models\User', 'changed_by');
    }
}