Zend Framework Doctrine Resource

[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_PATH "/../library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
pluginPaths.Sonar_Application_Resource_ = "Sonar/Application/Resource"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
resources.doctrine.modelPath = APPLICATION_PATH "/models"

[staging : production]

[qa : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1

resources.doctrine.connectionString = "mysql://sonar:2ownSonar@localhost"
resources.doctrine.databases[] = sonar_qa

[development : production]
phpSettings.display_startup_errors = 1
phpSettings.display_errors = 1

resources.doctrine.connectionString = "mysql://sonar:2ownSonar@localhost"
resources.doctrine.databases[] = sonar


<?php
class My_Application_Resource_Doctrine extends Zend_Application_Resource_ResourceAbstract
{
	public function init()
    {
        //pull in options from config file
        $options = $this->getOptions();
        
        //require doctrine core
        require_once('Doctrine/lib/Doctrine.php');
        
        //setup autoloading for doctrine core and models
        $loader = Zend_Loader_Autoloader::getInstance();
        $loader->pushAutoLoader(array('Doctrine', 'autoload'));
        $loader->pushAutoLoader(array('Doctrine', 'modelsAutoLoad'));
        
        //tell doctrine to load the models but load them conservatively
        $manager = Doctrine_Manager::getInstance();
        $manager->setAttribute(Doctrine::ATTR_MODEL_LOADING, Doctrine::MODEL_LOADING_CONSERVATIVE);
        $manager->setAttribute(Doctrine_Core::ATTR_AUTO_ACCESSOR_OVERRIDE, true);
        Doctrine::loadModels($options["modelPath"]);
        
        //make database connections
        foreach ($options["databases"] as $database) {
            $dsn = $options["connectionString"] . '/' . $database;
            $manager->openConnection($dsn, $database);
        }
        
        //return doctrine manager as the resource that was bootstrapped
        return $manager;
        
    }
}