magento后端无法登录致命错误getBlockName [英] magento backend unable to login Fatal error getBlockName

问题描述

在Magento 1.8上运行

Running on Magento 1.8

我正在复制到测试生产站点，但是在后端我无法登录，这是错误消息.

I was copying to a test production site but at the backend I couldn't login and this is the error message.

Fatal error: Call to a member function getBlockName() on a non-object in /var/www/test/app/code/core/Mage/Captcha/Block/Captcha.php on line 43

为解决此问题，通常我们删除var/cache文件夹，但是问题出在此测试站点上，我们没有var文件夹，所以我不确定是什么引起了错误.

To solve this problem usually we delete var/cache folder, but the problem is on this test site we don't have a var folder so I'm not sure what is causing the error.

这是链接

推荐答案

看起来您的代码假定存在一个块类，并使用该类的实例，然后调用函数getBlockName().

It looks like your code assumes a block class exists and uses instance of that class and then calls a functions getBlockName().

class Mage_Captcha_Block_Captcha extends Mage_Core_Block_Template
{
    /**
     * Renders captcha HTML (if required)
     *
     * @return string
     */
    protected function _toHtml()
    {
        $blockPath =     Mage::helper('captcha')->getCaptcha($this->getFormId())->getBlockName();

是造成问题的代码.

如果您查看此行:getCaptcha($this->getFormId())

这应该已经返回了一个块实例，但是由于某种原因却没有.

this should have returned a block instance but for some reason it didn't.

因此，您需要检查Magento日志并调试getCaptcha($this->getFormId())没有生成块的原因.

So you need to check your Magento logs and debug as to why getCaptcha($this->getFormId()) didn't generate a block.

这篇关于magento后端无法登录致命错误getBlockName的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！