Magento - 根据环境加载local.xml

Question

我想要3个app/etc/local.xml文件 - 称之为local.xml staging.xml和live.xml.

我想根据我在vhosts或htaccess中设置的环境变量加载这些.这样我可以有单独的数据库等,但我可以保留在svn下的1个代码库.

实现这一目标的最佳方法是什么？

Answer 1

local.xml是多个Magento文件中的硬编码.

因此,如果要为此实现自己的文件名选择,则必须分别覆盖几个核心类/方法/函数.

扫描local.xml*显示 - 除其他外 - 你必须修改/app/Mage.php.那是因为你无法覆盖Mage(它是一个final类).

请注意,可以进行修改/app/Mage.php,但每次升级到下一个Magento版本都将覆盖您的更改.

如果你能忍受这种情况,你至少还必须覆盖

Mage_Core_Model_Config
Mage_Core_Model_Layout_Update

也许另外

Mage_Install_Model_Installer_Config
Mage_Adminhtml_Block_Notification_Security (1.5.1)

根据您的需要.

履行

设置文件名选择方法,例如在帮助程序中:

class Mynamespace_Mymodule_Helper_Data extends Mage_Core_Helper_Data
{
    public function getLocalXMLFileName()
    {
        return getenv('MY_XML') . 'xml';
    }    
}

在重写的核心类中,只需调用辅助方法,例如更改

$updateFiles[] = 'local.xml';

至

$updateFiles[] = Mage::helper('mymodule')->getLocalXMLFileName();

_{*我只扫描了1.3.2.x,1.5.1和1.8.1.0.在其他版本中,可能会影响更多/更少的类.}

1.3.2.x:

./app/code/core/Mage/Install/Model/Installer/Config.php:49:
    $this->_localConfigFile = Mage::getBaseDir('etc').DS.'local.xml';

./app/code/core/Mage/Core/Model/Layout/Update.php:283:
    $updateFiles[] = 'local.xml';

./app/code/core/Mage/Core/Model/Config.php:214:
    $localConfigLoaded  = $this->loadFile($etcDir.DS.'local.xml');

./app/code/core/Mage/Core/Model/Config.php:248:
    $configFile  = $etcDir.DS.'local.xml';

./app/Mage.php:521:
    $localConfigFile = self::getRoot() . DS . $etcDir . DS . 'local.xml';

1.5.1:

./app/code/core/Mage/Install/Model/Installer/Config.php:49:
    $this->_localConfigFile = Mage::getBaseDir('etc').DS.'local.xml';

./app/code/core/Mage/Core/Model/Layout/Update.php:418:
    $updateFiles[] = 'local.xml';

./app/code/core/Mage/Core/Model/Config.php:280:
    if (in_array($etcDir.DS.'local.xml', $files)) {

./app/code/core/Mage/Core/Model/Config.php:322:
    $this->_isLocalConfigLoaded = $mergeConfig->
        loadFile($this->getOptions()->getEtcDir().DS.'local.xml');

./app/code/core/Mage/Adminhtml/Block/Notification/Security.php:36:
    private $_filePath = 'app/etc/local.xml';

./app/Mage.php:671:
    $localConfigFile = self::getRoot() . DS . $etcDir . DS . 'local.xml';

./errors/processor.php:34:
    const MAGE_ERRORS_LOCAL_XML = 'local.xml';

1.8.1.0:

./app/code/core/Mage/Install/Model/Installer/Config.php:49:
    $this->_localConfigFile = Mage::getBaseDir('etc') . DS . 'local.xml';

./app/code/core/Mage/Install/Model/Installer/Config.php:103:
    $template = file_get_contents(Mage::getBaseDir('etc') . DS . 'local.xml.template');

./app/code/core/Mage/Core/Model/Config.php:280:
    if (in_array($etcDir.DS.'local.xml', $files)) {

./app/code/core/Mage/Core/Model/Config.php:324:
    $this->_isLocalConfigLoaded =
        $mergeConfig->loadFile($this->getOptions()->getEtcDir().DS.'local.xml');

./app/code/core/Mage/Core/Model/Layout/Update.php:311:
    // $updateFiles[] = 'local.xml';

./app/code/core/Mage/Core/Model/Layout/Update.php:431:
    $updateFiles[] = 'local.xml';

./app/code/core/Mage/Adminhtml/Block/Notification/Security.php:36:
    private $_filePath = 'app/etc/local.xml';

./app/Mage.php:762:
    $localConfigFile = $etcDir . DS . 'local.xml';

./errors/processor.php:34:
   const MAGE_ERRORS_LOCAL_XML = 'local.xml';