Question

I’m having a problem with setting up a model table from a view helper. I have used the exact same code that I use within my regular controllers: e.g.:

namespace Application\View\Helper;

use Zend\View\Helper\AbstractHelper;

use Application\Model\MenusTable;

use Zend\ServiceManager\ServiceLocatorAwareInterface;  
use Zend\ServiceManager\ServiceLocatorInterface; 

**snipped**

public function setServiceLocator(ServiceLocatorInterface $serviceLocator)  
{  
    $this->serviceLocator = $serviceLocator;  
    return $this;  
}

public function getServiceLocator()  
{  
    return $this->serviceLocator;  
} 

public function getMenusTable()
{
    if (!$this->menusTable) {
        $sm = $this->getServiceLocator();
        $this->menusTable = $sm->get('Application\Model\MenusTable');
    }

    return $this->menusTable;
}

public function allLinks()
{
    $all = $this->getMenusTable()->fetchAll();

    return $all;
}

However I am met with this error:

Catchable fatal error: Argument 1 passed to Application\Model\MenusTable::__construct() must be an instance of Zend\Db\Adapter\Adapter, none given, called in C:\xampp\**snipped**\zend\library\Zend\ServiceManager\AbstractPluginManager.php on line 177 and defined in C:\xampp\**snipped**\Application\src\Application\Model\MenusTable.php on line 14

Everything works fine from the main controllers, but here I seem to hit a big problem – I’m new to Zend, but it appears to not be getting the factory from the Module.php file – is there any way to get it?

I have this in my Module.php – as said it works fine in a regular controller, but in a view helper it’s not processed for some reason:

public function getServiceConfig()
{
    return array
    (
        'factories' => array
        (
            'Application\Model\MenusTable' => function($sm)
            {
                $dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
                $table     = new MenusTable($dbAdapter);
                return $table;
            },
        ),
    );
}

Answer 1

After re-reading your question I realized that your using ZF2.

here is a tutorial on using ServiceLocators http://framework.zend.com/wiki/display/ZFDEV2/Proposal+for+ServiceLocator+and+DependencyInjector

From the Documentation you need to define your DB connection.

$services = new ServiceLocator();

// Registering an object:
$services->set('db', $db);

// Lazy-loading by registering a closure:
$services->set('db', function() use ($config) {
$db = Db::factory($config->db);
    return $db;
});

// Retrieving:
$db = $services->get('db');