Zend FR

$autoloader->registerNamespace('Doctrine_');
$autoloader->registerNamespace('Doctrine');

<?php
/**
 * Doctrine resource
 *
 * @category   Tight
 * @package    Tight_Application
 * @subpackage Resource
 * @author     Benjamin Dulau
 */
class Tight_Application_Resource_Doctrine extends Zend_Application_Resource_ResourceAbstract
{
    /**
     * @var Doctrine_Manager
     */
    protected $_manager;
    
    protected $_options = array();

    /**
     * Initialize Doctrine
     * 
     * @return Doctrine_Manager
     */
    public function init()
    {                           
        $this->_options = $this->getOptions();
                                
        $autoloader = $this->getBootstrap()->getApplication()->getAutoloader();
        $autoloader->pushAutoloader(array('Doctrine_Core', 'autoload'));
        spl_autoload_register(array('Doctrine_Core', 'modelsAutoload'));                  

        $manager = Doctrine_Manager::getInstance();
        $manager->setAttribute(Doctrine_Core::ATTR_AUTO_ACCESSOR_OVERRIDE, true);
        $manager->setAttribute(
            Doctrine_Core::ATTR_MODEL_LOADING,
            Doctrine_Core::MODEL_LOADING_CONSERVATIVE
        );
        $manager->setAttribute(Doctrine_Core::ATTR_AUTOLOAD_TABLE_CLASSES, true);
        //$manager->setAttribute(Doctrine_Core::ATTR_QUOTE_IDENTIFIER, true);

        // connections
        foreach ($this->_options['dsn'] as $name => $dsn) {
            //$manager->openConnection($dsn, $con_name);
            $conn = $manager->connection($dsn, $name);
            $conn->setAttribute(Doctrine_Core::ATTR_USE_NATIVE_ENUM, true);
            $conn->setCharset('utf8');
        }
        //$dsn = $this->_options['dsn'];                
            
        return $manager;
    }
}

pluginPaths.Tight_Application_Resource = APPLICATION_PATH "/../lib/Tight/Application/Resource"

;====== Resource Doctrine
autoloaderNamespaces[] = "Doctrine"

resources.doctrine.dsn.default = "mysql://user:password@127.0.0.1/dbname"
resources.doctrine.dsn.front = "mysql://user:password@127.0.0.1/dbname2"
resources.doctrine.data_fixtures_path = APPLICATION_PATH "/../etc/db/data/fixtures"
resources.doctrine.sql_path           = APPLICATION_PATH "/../etc/db/data/sql"
resources.doctrine.migrations_path    = APPLICATION_PATH "/../etc/db/migrations"
resources.doctrine.yaml_schema_path   = APPLICATION_PATH "/../etc/db/models.yml"
resources.doctrine.models_path        = APPLICATION_PATH "/domain/models"
resources.doctrine.generate_models_options.pearStyle = true
resources.doctrine.generate_models_options.generateTableClasses = false
resources.doctrine.generate_models_options.baseClassPrefix = Entity_
resources.doctrine.generate_models_options.baseClassesDirectory = null
resources.doctrine.generate_models_options.classPrefix = Model_
resources.doctrine.generate_models_options.classPrefixFiles = false
resources.doctrine.generate_models_options.generateBaseClasses = true

$user = Doctrine_Query::create()
        ->from('Model_User u')
        ->where('u.login = ?', 'toto')
        ->fetchOne();