screen/application/common/model/Transaction.php

<?php

namespace app\common\model;

use think\Model;


class Transaction extends Model
{
    protected $autoWriteTimestamp=true;
    protected $updateTime=null;
    const TYPE_ORDER='orders';
    const TYPE_REFUND='order_info_refund';
    public static $types=[
        self::TYPE_ORDER=>'订单付款',
        self::TYPE_REFUND=>'订单退款',
    ];

    /**
     * @return string[]
     */
    public static function getTypes(): array
    {
        return self::$types;
    }
    public function trans(){
        return $this->morphTo('trans',[
            Orders::class=>'orders',
            Refund::class=>'order_info_refund',
        ]);
    }

    public function user(){
        return $this->belongsTo(User::class)->setEagerlyType(0);
    }

    public static function addTransaction(Model $model){
        $trans=new self;
        $trans['trans_type']=$model->getTable();
        $trans['trans_id']=$model[$model->getPk()];
        $trans['user_id']=$model['user_id'];
        $trans['amount']=0;
        if($model instanceof Orders){
            $trans['amount']=$model->amount_pay;
        }elseif ($model instanceof Refund){
            $trans['amount']=$model->amount;
        }
        if($trans['amount']>0){
            $trans->save();
        }
    }
}