使用 Zend Framework 连接到两个不同的数据库

问题描述

我这里有一个完全用 Zend FW 编写的中型 Intranet 站点.Intranet 的数据库位于另一台服务器上.现在我需要使用一些新功能来扩展 Intranet.为了做到这一点，我需要连接到同一台服务器(和同一个 DBMS)上的另一个数据库.

I have here a medium sized intranet site which is written entirely in Zend FW. The database for the intranet is located on another server. Now I need to extend the intranet with some new functionality. In order to do this I need to connect to another database on the same server (and same DBMS).

现在的问题是:这样做的最佳方法是什么?我应该创建一个新的 Zend_Config 对象和一个新的 Zend_Db_Adapter 吗?或者我应该使用现有的并尝试使用use otherdbname;"在同一会话中连接到新数据库的语句?

The question is now: What is the best way to do this? Should I create a new Zend_Config object and a new Zend_Db_Adapter? Or should I use the existing one and try with the "use otherdbname;" statement to connect within the same session to the new database?

或者有更好的方法吗?

推荐答案

一种选择是从您的 bootstrap.php 中注册 2 个数据库句柄，每个连接一个.例如:

One option is to register 2 database handles from within your bootstrap.php, one for each connection. E.g.:

$parameters = array(
                    'host'     => 'xx.xxx.xxx.xxx',
                    'username' => 'test',
                    'password' => 'test',
                    'dbname'   => 'test'
                   );
try {
    $db = Zend_Db::factory('Pdo_Mysql', $parameters);
    $db->getConnection();
} catch (Zend_Db_Adapter_Exception $e) {
    echo $e->getMessage();
    die('Could not connect to database.');
} catch (Zend_Exception $e) {
    echo $e->getMessage();
    die('Could not connect to database.');
}
Zend_Registry::set('db', $db);

$parameters = array(
                    'host'     => 'xx.xxx.xxx.xxx',
                    'username' => 'test',
                    'password' => 'test',
                    'dbname'   => 'test'
                   );
try {
    $db = Zend_Db::factory('Pdo_Mysql', $parameters);
    $db->getConnection();
} catch (Zend_Db_Adapter_Exception $e) {
    echo $e->getMessage();
    die('Could not connect to database.');
} catch (Zend_Exception $e) {
    echo $e->getMessage();
    die('Could not connect to database.');
}
Zend_Registry::set('db2', $db);

在您的控制器中(例如):

In your controllers (e.g.):

public function init()
{
     $this->db = Zend_Registry::get('db');
     $this->db2 = Zend_Registry::get('db2');
}

public function fooAction()
{
    $data = $this->db2->fetchAll('select foo from blah');
    ...
}

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