如何从local.php访问配置

Question

I am moving my old password encrypt class from ZF1 to ZF2. In my original code I used the zend registry to store the encryption salt value pulled from the application.ini file. In ZF2 the logical place for this setting to go would be the local.php file in config/autoload folder.

My question is how do I access the salt setting specified in the local.php file?

I have tried

$this->getServiceLocator()->get('Config'); 

but all this does is produce the error

Call to a member function get() on a non-object
in C:\Users\Garry Childs\Documents\My Webs\freedomw\vendor\freedom\Zend\Filter\EncryptPassword.php on line 59

I have also tried to add the following function to my module.php file

public function getConfig()
{
    return include __DIR__ . '/config/module.config.php';
}

and used

$this->getConfig();

to no avail.

Please can someone point me in the right direction, many thanks.

Answer 1

would say that you have to make a factory for your password encrypt class and get the salt from ServiceLocator in the factory and inject the salt from the config into your class (either in constructor or by using some setter).

So something like this:

In your module.config.php :

'service_manager' => array(
    'factories' => array(
        'My\Filter\EncryptPassword' => 'My\Filter\EncryptPasswordFactory',
    )
)

And then in your My\\Filter\\EncryptPasswordFactory.php :

<?php
namespace My\Filter;

use Zend\ServiceManager\FactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;

class EncryptPasswordFactory implements FactoryInterface
{
    /**
     * @param  ServiceLocatorInterface $serviceLocator
     * @return EncryptPasswordService
     */
    public function createService(ServiceLocatorInterface $serviceLocator)
    {
        $config = $serviceLocator->get('config');
        $salt = ...get salt from config...
        $encryptPasswordService = new EncryptPasswordService($salt);
        return $encryptPasswordService;

...or make a setSalt method or whatever you think is nicest...

    }
}

Your My\\Filter\\EncryptPasswordService.php :

<?php
namespace My\Filter;

class EncryptPasswordSevice
{
    /**
     * @param  ServiceLocatorInterface $serviceLocator
     * @return EncryptPasswordService
     */
    public function __construct($salt)
    {
        use your $salt
    }
}

Now you can get your My\\Filter\\EncryptPassword anywhere where you have access to a serviceManager instance (or serviceLocator instance) like this:

$encryptPasswordService = $serviceManager->get('My\Filter\EncryptPassword');