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Kohana 3.1 module to do Dependency Injection .

---

Configuration file format:

<?php
return array(
    // id used to retrive the object
    'id' => array(
        // object to return for the id
        'class' => 'NameSpace\Class',
        // attributes to set via constructor (in order)
        'constructor_attributes' => array(
            0 => 'value1',
            1 => 'value2',
            ),
        // attributes to set via public attributes or setter method
         'setter_attributes' => array(
            'attribute1' => 'value1',
            'attribute2' => 'value2',
            ),
        // instanciate only on first use (default: TRUE) or instanciate during module init (FALSE)
        'use_lazyload' => TRUE,
        // use a single instance (default: TRUE) or create new instances each time (FALSE)
        'use_singleton' => TRUE,
        ),
    );

Configuration exemple:

<?php
    return array(
        'doctrine' => array(
            'class' => 'Doctrine_ORM',
            'use_lazyload' => TRUE,
            'use_singleton' => FALSE,
            ),
        );

Usage:

<?php
    abstract class Controller_Database extends Controller
    {
        private $orm;

        public function before()
        {
            parent::before();

            $this->orm = Registry::instance()->get('doctrine');
        }
    }

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Usage for an existing instance or a singleton:

config/registry.php

<?php
return array(
    'logger' => array(
        'use_lazyload' => TRUE, // deffer object creation to allow an explicit set
        ),
    );

bootstrap.php

// ...
Registry::$instance->set('logger', Kohana::$log);

classes/controller/welcome.php

<?php
    class Controller_Welcome extends Controller
    {
        public function action_index()
        {
            $logger = Registry::instance()->get('logger');
            $logger->add(7, 'Hello log!');
        }
    }