Magento切换数据库，使用不同数据库

Magento切换数据库，使用不同数据库

1. 在app/etc/local.xml 中，添加新的 数据库选项

<?xml version="1.0"?> <config> <global> <install> <date><![CDATA[Tue, 05 Jul 2011 03:23:52 +0000]]></date> </install> <crypt> <key><![CDATA[80eb4be66ce28df745f27c75f2604d33]]></key> </crypt> <disable_local_modules>false</disable_local_modules> <resources> <db> <table_prefix><![CDATA[]]></table_prefix> </db> <default_setup> <connection> <host><![CDATA[localhost]]></host> <username><![CDATA[root]]></username> <password><![CDATA[]]></password> <dbname><![CDATA[hello]]></dbname> <active>1</active> </connection> </default_setup> <vip_space_read> <connection> <host><![CDATA[localhost]]></host> <username><![CDATA[root]]></username> <password><![CDATA[]]></password> <dbname><![CDATA[hello_dev_test]]></dbname> <model>mysql4</model> <initStatements>SET NAMES utf8</initStatements> <type>pdo_mysql</type> <active>1</active> </connection> </vip_space_read> </resources> <session_save><![CDATA[files]]></session_save> </global> <admin> <routers> <adminhtml> <args> <frontName><![CDATA[hello_admin]]></frontName> </args> </adminhtml> </routers> </admin> </config>

　　2. 在需要使用的不同数据库的model resource中，重写 _setResource 方法，例如

class Hello_Vip_Model_Entity_Vip_Adapter extends Mage_Core_Model_Mysql4_Abstract { protected $_logFile = 'vip.adapter.log'; protected function _construct() { $this->_setResource(array('read' =>'vip_space_read', 'write' =>'vip_space_read')); }

　　经过以上两步，就能在某个model中使用不同的数据库

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