ZF2 load service config from module - php

Question

I am still struggling in instantiating a service from a ZF2 module outside of Zend Framework (in a blank .php).
I want to achieve:
Instantiate + invoke a ZF2 service method from outside ZF by the use of the ServiceManager and possibly DI.
What I have now: (UPDATED 4/10/2013)
Following up on the comments below I have done more research,particularly:
The quick guide
http://framework.zend.com/manual/2.0/en/modules/zend.service-manager.quick-start.html
RTD (Databases and models) http:
//zf2.readthedocs.org/en/latest/user-guide/database-and-models.html
Modules presentation (Very helpful) http://www.youtube.com/watch?v=Vp7y65rnN98#t=1200
Module source on github - https: //github.com/juriansluiman/SlmMail
I've opted to trim out all the DI and ModuleManager things and try to autoload (works fine now) and instantiate (does not) a service.
1 - Autoload the requested classes using a Classmap and instantiate servicemanager in a stand-alone .PHP file
// Autoload ZF and ProductImage module via classmap
Zend\Loader\AutoloaderFactory::factory(array(
'Zend\Loader\StandardAutoloader' => array(
'autoregister_zf' => TRUE,
),
'Zend\Loader\ClassMapAutoloader' => array(
'/home/frequency/domains/scrftcdn/public_html/ft/shop/php/zendframework/module/ProductImage/autoload_classmap.php',
)
)
)
// Hard-coded servicemanager configuration (will come from $module->getConfig once this works)
$smc = new \Zend\ServiceManager\Config(
array(
'service_manager' => array(
'factories' => array(
'ProductImage\Model\ProductImage' => 'ProductImage\Factory\ProductImageFactory',
)
),
)
);
// Instantiate the service manager
$sm = new \Zend\ServiceManager\ServiceManager($smc);
//Load the service via the service manager
$service = $sm->get('ProductImage\Model\ProductImage'); // <throws exception
die();
2 - The exception
[error] [client 192.168.6.52] PHP Fatal error:
Uncaught exception 'Zend\\ServiceManager\\Exception\\ServiceNotFoundException' with message 'Zend\\ServiceManager\\ServiceManager::get was unable to fetch or create an instance for ProductImage\\Model\\ProductImage' in /usr/lib/zendframework/library/Zend/ServiceManager/ServiceManager.php:495
Stack trace:\n#0 /home/frequency/domains/wpfreqad/public_html/wp-content/themes/frequency/manage-product-images/functions.inc.php(48): Zend\\ServiceManager\\ServiceManager->get('ProductImage\\Mo...')
#1 /home/frequency/domains/wpfreqad/public_html/wp-content/themes/frequency/functions.inc.php(14): require_once('/home/frequency...')\n
#2 /home/frequency/domains/wpfreqad/public_html/wp-content/themes/frequency/functions.php(14): require_once('/home/frequency...')\n
#3 /home/frequency/domains/wpfreqad/public_html/wp-settings.php(293): include('/home/frequency...')\n
#4 /home/frequency/domains/wpfreqad/public_html/wp-config.php(90): require_once('/home/frequency...')\n
#5 /home/frequency/domains/wpfreqad/public_html/wp-load.php(29): require_onc in /usr/lib/zendframework/library/Zend/ServiceManager/ServiceManager.php on line 495
3 - ProductImage\autoload_classmap.php
<?php
// Generated by ZF2's ./bin/classmap_generator.php
return array(
'ProductImageTest\Service\ProductImageServiceTest' => __DIR__ . '/test/ProductImageTest/Service/ProductImageServiceTest.php',
'ProductImage\Module' => __DIR__ . '/Module.php',
'ProductImage\Factory\ProductImageFactory' => __DIR__ . '/src/ProductImage/Factory/ProductImageFactory.php',
'ProductImage\Model\ProductImage' => __DIR__ . '/src/ProductImage/Model/ProductImage.php',
);
4 - ProductImage\Module.php
class Module implements \Zend\ModuleManager\Feature\ConfigProviderInterface
{
/* Invoked by Module Manager */
public function getConfig()
{
return include __DIR__ . '/config/module.config.php';
}
}
5 - ProductImage\config\module.config.php
<?php
return array(
'service_manager' => array(
'factories' => array(
'ProductImage\Model\ProductImage' => 'ProductImage\Factory\ProductImageFactory',
),
),
);
I hope that's the right approach and not too far off the right way..

Answer 1

I've finally found a solution. Jurian's hints to using the actual application have put me on the right track! :)
1 - /zendframework/config/application.config.php.
Everything is default, just make sure the module is added. I commented the 'application' module as I don't see any use for it (as of now). I also had to change the path to the config files from './module' to __DIR__ . '../module' as it was looking in the wrong directory (took me a while to find that one).
<?php
return array(
// ...
'modules' => array(
'ProductImage', /* ProductImage module */
// 'Application',
),
// ...
'module_listener_options' => array(
'module_paths' => array(
__DIR__ . '/../module',
__DIR__ . '/../vendor',
),
2 - configuration
make sure the modules are configured right, and also that ZF2 Path is set up correctly. In my case, run through the quick start on RTD (http://zf2.readthedocs.org/en/latest/ref/installation.html). I had the ZF2_PATH exception and change the httpd.conf via WHM.
3 - Read more on RTD
In particular on how you can bootstrap the application: http://zf2.readthedocs.org/en/latest/modules/zend.mvc.intro.html#zend-mvc-intro
Which after very little debugging produced me the following code to access a neatly configured $sm instance.
//wherever the ZF2 application skeleton is, include the autoloader
require_once '/home/path/to/the/ZF2/application/directory/init_autoloader.php';
use Zend\Loader\AutoloaderFactory;
use Zend\Mvc\Application;
use Zend\Mvc\Service\ServiceManagerConfig;
use Zend\ServiceManager\ServiceManager;
// setup autoloader
AutoloaderFactory::factory();
// get application stack configuration
$configuration = include '/home/path/to/the/ZF2/application/directory/config/application.config.php';
//var_export($configuration);
// The init() method does something very similar with the previous example.
$app = Application::init($configuration);
$sm = $app->getServiceManager();
$pi = $sm->get('ProductImage\Service\ProductImageService');
var_export($pi);
die();
I do not like the fact that the configuration needs to be specified in addition to the init_autoloader path. I avoid this implementation from being copied and pasted all over the place, I am considering integrating the $sm instantiation into the init_autoloader.php in the future so that the path of the configuration file does not have to be specified whenever a ProductImage service needs to be invoked.