重载财产的Yii间接修改

问题描述

$winnerBid = Bids::model()->find($criteria);

型号旁边的关系：

Model has next relations:

public function relations() {
        return array(
            'item' => array(self::BELONGS_TO, 'Goods', 'item_id'),
            'room' => array(self::BELONGS_TO, 'Rooms', 'room_id'),
            'seller' => array(self::BELONGS_TO, 'RoomPlayers', 'seller_id'),
            'buyer' => array(self::BELONGS_TO, 'RoomPlayers', 'buyer_id'),
        );
    }

当我试图保存：

 $this->seller->current_item++;
    $this->seller->wins++;
    $this->seller->save();

我收到错误：

I am getting error:

重载间接修改  物业出价:: $卖家有没有影响  （/var/www/auction/www/protected/models/Bids.php:16）

但它是一切罚款另一台服务器？如何解决呢？或者重写PHP指令？有任何想法吗？ TNX

But it was everything fine at another server?How to fix it? Or override php directives? Any ideas? TNX

推荐答案

这里的问题是， $卖家不是一个真正的财产（Yii中实现对性能的其模型使用魔法 __ GET 方法），所以实际上你正试图修改函数的返回值（它没有影响）。这是因为如果你试图做的：

The problem here is that $seller is not a "real" property (Yii implements properties on its Models by using the magic __get method), so in effect you are trying to modify the return value of a function (which has no effect). It is as if you tried to do:

function foo() {
    return 42;
}

// INVALID CODE FOR ILLUSTRATION
(foo())++;

我不肯定对不同PHP版本的这种行为状态，但有一个简单的解决方法，你可以使用：

I 'm not sure about the status of this behavior on different PHP versions, but there is an easy workaround you can use:

$seller = $this->seller;
$seller->current_item++;
$seller->wins++;
$seller->save();

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