doctrine y codeigniter como manejar las conecciones?

[Copia]

El error es distinto al aplicar la funcion que me recomendo.

Dejo la configuracion del plugin que tengo quiza pueda servir de algo: El archivo se llama doctrine_pi.php y esta a la misma altura que la libreria de doctrine.

Código:

<?php
// load Doctrine library
require_once APPPATH.'/plugins/doctrine/lib/Doctrine.php';

// load database configuration from CodeIgniter
require_once APPPATH.'/config/database.php';

// this will allow Doctrine to load Model classes automatically
spl_autoload_register(array('Doctrine', 'autoload'));

// we load our database connections into Doctrine_Manager
// this loop allows us to use multiple connections later on
foreach ($db as $connection_name => $db_values) {
	
	// first we must convert to dsn format
	$dsn = $db[$connection_name]['dbdriver'] . 
		'://' . $db[$connection_name]['username'] . 
		':' . $db[$connection_name]['password']. 
		'@' . $db[$connection_name]['hostname'] . 
		'/' . $db[$connection_name]['database'];

	Doctrine_Manager::connection($dsn,$connection_name);
}

// CodeIgniter's Model class needs to be loaded
require_once BASEPATH.'/libraries/Model.php';

// telling Doctrine where our models are located
Doctrine::loadModels(APPPATH.'/models');


// (OPTIONAL) CONFIGURATION BELOW

// this will allow us to use "mutators"
Doctrine_Manager::getInstance()->setAttribute(
	Doctrine::ATTR_AUTO_ACCESSOR_OVERRIDE, true);

// this sets all table columns to notnull and unsigned (for ints) by default
Doctrine_Manager::getInstance()->setAttribute(
	Doctrine::ATTR_DEFAULT_COLUMN_OPTIONS,
	array('notnull' => true, 'unsigned' => true));
	
// set the default primary key to be named 'id', integer, 4 bytes
Doctrine_Manager::getInstance()->setAttribute(
	Doctrine::ATTR_DEFAULT_IDENTIFIER_OPTIONS,
	array('name' => 'id', 'type' => 'integer', 'length' => 4));