如何在保存前加密数据并在使用前进行描述

Question

我们有一个yii1站点，其中包含大量数据库查询，从某些安全角度来看，我们希望以加密形式存储数据，并希望在使用前解密。

我正在使用beforeSave和afterFind方法，但网格不起作用。 以下是我的代码：

public function beforeSave() {
        $this->name = CommonFunctions::encodeString($this->name);
        $this->currency_symbol = CommonFunctions::encodeString($this->currency_symbol);
        $this->is_base_currency = CommonFunctions::encodeString($this->is_base_currency);
        $this->exchange_rate = CommonFunctions::encodeString($this->exchange_rate);
        return parent::beforeSave();
    }
    protected function afterFind() {
        $this->name = CommonFunctions::decodeString($this->name);
        $this->currency_symbol = CommonFunctions::decodeString($this->currency_symbol);
        $this->is_base_currency = CommonFunctions::decodeString($this->is_base_currency);
        $this->exchange_rate = CommonFunctions::decodeString($this->exchange_rate);
        parent::afterFind();
    }