magento connections to two databases - php

Question

I have a problem in magento. i want to connect two databases with magento.one database will be the main database and the other will be for stores. I dont know how to do it.By this time my connection is in the file app/etc/local.xml.....my local.xml is follows
please help
false
[mysql4]]>
1

Answer 1

There may be a more elegant solution that what I've implemented, but my method works. I did this for an osCommerce import/export module.
/httpdocs/app/etc/config.xml
<!-- osCommerce db/read/write -->
<oscommercedb>
<connection>
<host>localhost</host>
<username>root</username>
<password>pass</password>
<dbname>oscommerce_database_name</dbname>
<model>mysql4</model>
<initstatements>SET NAMES utf8</initstatements>
<type>pdo_mysql</type>
<active>1</active>
</connection>
</oscommercedb>
<oscommercedb_write>
<connection>
<use>oscommercedb</use>
</connection>
</oscommercedb_write>
<oscommercedb_read>
<connection>
<use>oscommercedb</use>
</connection>
</oscommercedb_read>
<!-- end osCommerce db -->
This gives you the ability to call oscommercedb within your models. The above code goes within the <resources> block.
Let's take a look at a model now.
/httpdocs/app/code/local/Company/Extension/Model/OsCustomers.php
class Company_Extension_Model_OsCustomers extends Mage_Core_Model_Abstract
{
protected $_name = 'customers'; // name of the table
/**
* Returns rowset of tables for customers
*
* #return Zend_Db_Table_Rowset
*/
public function getAllOscommerceCustomers()
{
$read = Mage::getSingleton('core/resource')->getConnection('oscommercedb');
$stmt = $read->select();
$stmt->from(array('c' => 'customers'))
->join(array('a' => 'address_book'), 'a.address_book_id = c.customers_default_address_id')
->joinLeft('zones', 'zones.zone_id = a.entry_zone_id')
->join('countries','a.entry_country_id = countries.countries_id', array('countries_iso_code_2'));
return $read->fetchAll($stmt);
}
If you run into a specific problem let me know.